I. Data Set Descriptors A. Title: Steven C. Pennings. 2020. Quarterly plant monitoring survey -- shoot height and flowering status and calculated biomass of plants in three GCE LTER permanent monitoring plots (7,8,9) and three Altamaha River plant transition sites (SCSA,ZSC1,ZSC2) following hurricane Irma from October 2017 through October 2018.. Georgia Coastal Ecosystems LTER Data Catalog (data set PLT-IRMA-2002; http://gce-lter.marsci.uga.edu/public/app/dataset_details.asp?accession=PLT-IRMA-2002) B. Accession Number: PLT-IRMA-2002 C. Description 1. Originator(s): Name: Steven C. Pennings Address: Department of Biology and Biochemistry University of Houston Houston, Texas 77204-5513 Country: USA Email: scpennin@central.uh.edu 2. Abstract: The biomass of plants surveyed in permanent plots at 3 GCE LTER sampling sites (7,8,9) and 3 Altamaha River plant transition sites (SCSA, ZSC1, ZSC2) following hurricane Irma from October 2017 through October 2018. The plots were visually surveyed and the species, shoot height, and flowering status was recorded individually for each shoot over 10 cm in height present in each plot. Observations from plots exhibiting signs of disturbance were noted in a separate data set (XXX). Biomass twas estimated based on allometric relationships between biomass and shoot height and flowering status derived for each site, zone, and species in October 2002 and October 2008. Biomass was calculated for dominant species, including Spartina alterniflora, S. cynosuroides, Juncus roemerianus, and Zizaniopsis miliacea, as well as rarer species including Scirpus spp, Panicum spp. And Typha angustifolia. This data set is based on GCE plant monitoring survey data set PLT-GCEM-1711a, and allometric relationships were based on GCE data sets PLT-GCEM-0211b and PLT-GCEM-0812a. NOTE: These relationships were measured in the fall and may not be valid at other seasons. 3. Study Type: Research Study 4. Study Themes: Plant Ecology, Botany 5. LTER Core Areas: Primary Production 6. Georeferences: geographic coordinates as data columns 7. Submission Date: Feb 06, 2020 D. Keywords: Angiospermae, biomass, Bolboschoenus robustus, Cladium jamaicense, Cyperaceae, Embryophyta, flowering, GCE, Georgia, Georgia Coastal Ecosystems, Juncaceae, Juncus effusus, Lilianae, LTER, Magnoliopsida, marshes, monitoring, Panicum, permanent plots, plant communities, plant cover, plant ecology, plant growth, Plant Monitoring, Plantae, plants, Poaceae, Poales, Primary Production, primary productivity, Sapelo Island, Schoenoplectus americanus, Schoenoplectus pungens, Schoenoplectus tabernaemontani, Scirpus, shoot height, Spartina cynosuroides, Spermatophytina, Streptophyta, Tracheophyta, Typha, Typha angustifolia, Typhaceae, USA, Viridaeplantae, Viridiplantae II. Research Origin Descriptors A. Overall Project Description 1. Project Title: 2017 Hurricane Irma 2. Principal Investigators: Name: Merryl Alber Address: Dept. of Marine Sciences University of Georgia Athens, Georgia 30602-3636 Country: USA Email: malber@uga.edu 3. Funding Period: Nov 01, 2017 to Nov 01, 2018 4. Objectives: To evaluate the effects of disturbance along an abiotic salinity gradient by augmenting sampling of eleven core GCE-LTER monitoring sites, evaluate the effects of prior disturbance history by leveraging an ongoing field experiment to determine how prior saline disturbance treatments affect responses to the hurricane storm surge, evaluate state change using aerial imagery to look at landscape level shifts in vegetation type compared to pre-storm maps. 5. Abstract: The Georgia Coastal Ecosystems LTER program is studying how intertidal communities respond to changes in the upstream intrusion of salt water, due to both press (sea level rise) and pulse (droughts, storms) disturbances, and what it takes to tip these communities into a new state (which we define as a habitat shift). Hurricane Irma, which passed over the US on Sept. 11, 2017, caused the highest storm surge ever recorded on the central Georgia coast, and caused salt water to intrude far upstream. The GCE-LTER has long-term experiments and monitoring programs that provide 'before' data and a context for understanding the effects of this event. We hypothesize that the effects of disturbance will vary across abiotic gradients, that the response will depend on a site's prior disturbance history, and that state change is more likely to occur in transitional areas. We will assess these hypotheses as follows: 1) To evaluate the effects of disturbance along an abiotic salinity gradient we will augment sampling of our 11 core monitoring sites. We predict that the greatest response and longest recovery times in upstream areas that rarely experience pulses of high salinity water; 2) To evaluate the effects of prior disturbance history we will leverage an ongoing field experiment to determine how prior saline disturbance treatments affect responses to the hurricane storm surge. We predict that the press plots, which were already strongly affected, will take the longest to recover; that pulse plots may be pushed over a tipping point by the combination of the previous pulse treatment plus the hurricane; and that the control plots will be affected as observed in the pulse treatment before the hurricane; 3) To evaluate state change we will collect aerial imagery that will allow us to look at landscape level shifts in vegetation type compared to pre-storm maps, and augment sampling of transitional plots. We predict that transitional areas will be particularly vulnerable to state change, and that hurricane disturbance will re-set habitat distributions across the landscape. 6. Funding Source: NSF OCE 1803159 B. Sub-project Description 1. Site Description a. Geographic Location: GCE7 -- Carrs Island, Georgia, USA GCE8 -- Alligator Creek, Georgia, USA GCE9 -- Rockdedundy Island, Georgia, USA SCSA -- SCSA Altamaha Plant Transition Site, Georgia, USA ZSC1 -- ZSC1 Altamaha Plant Transition Site, Georgia, USA ZSC2 -- ZSC2 Altamaha Plant Transition Site, Georgia, USA GCE7_CB1 -- GCE7 creek bank plot 1 GCE7_CB12 -- GCE7 creek bank plot 12 GCE7_CB3 -- GCE7 creek bank plot 3 GCE7_CB4 -- GCE7 creek bank plot 4 GCE7_CB5 -- GCE7 creek bank plot 5 GCE7_CB6 -- GCE7 creek bank plot 6 GCE7_CB7 -- GCE7 creek bank plot 7 GCE7_CB8 -- GCE7 creek bank plot 8 GCE7_MM1 -- GCE7 mid-marsh plot 1 GCE7_MM2 -- GCE7 mid-marsh plot 2 GCE7_MM3 -- GCE7 mid-marsh plot 3 GCE7_MM4 -- GCE7 mid-marsh plot 4 GCE7_MM5 -- GCE7 mid-marsh plot 5 GCE7_MM6 -- GCE7 mid-marsh plot 6 GCE7_MM7 -- GCE7 mid-marsh plot 7 GCE7_MM8 -- GCE7 mid-marsh plot 8 GCE8_CB12 -- GCE8 creek bank plot 12 GCE8_CB14 -- GCE8 creek bank plot 14 GCE8_CB26 -- GCE8 creek bank plot 26 GCE8_CB27 -- GCE8 creek bank plot 27 GCE8_CB28 -- GCE8 creek bank plot 28 GCE8_CB3 -- GCE8 creek bank plot 3 GCE8_CB31 -- GCE8 creek bank plot 31 GCE8_CB45 -- GCE8 creek bank plot 45 GCE8_MM1 -- GCE8 mid-marsh plot 1 GCE8_MM12 -- GCE8 mid-marsh plot 12 GCE8_MM18 -- GCE8 mid-marsh plot 18 GCE8_MM23 -- GCE8 mid-marsh plot 23 GCE8_MM4 -- GCE8 mid-marsh plot 4 GCE8_MM5 -- GCE8 mid-marsh plot 5 GCE8_MM6 -- GCE8 mid-marsh plot 6 GCE8_MM7 -- GCE8 mid-marsh plot 7 GCE9_CB11 -- GCE9 creek bank plot 11 GCE9_CB14 -- GCE9 creek bank plot 14 GCE9_CB17 -- GCE9 creek bank plot 17 GCE9_CB18 -- GCE9 creek bank plot 18 GCE9_CB2 -- GCE9 creek bank plot 2 GCE9_CB26 -- GCE9 creek bank plot 26 GCE9_CB33 -- GCE9 creek bank plot 33 GCE9_CB5 -- GCE9 creek bank plot 5 GCE9_JN1 -- GCE9 Juncus plot 1 GCE9_JN2 -- GCE9 Juncus plot 2 GCE9_JN3 -- GCE9 Juncus plot 3 GCE9_JN4 -- GCE9 Juncus plot 4 GCE9_JN5 -- GCE9 Juncus plot 5 GCE9_JN6 -- GCE9 Juncus plot 6 GCE9_JN7 -- GCE9 Juncus plot 7 GCE9_JN8 -- GCE9 Juncus plot 8 GCE9_MM1 -- GCE9 mid-marsh plot 1 GCE9_MM2 -- GCE9 mid-marsh plot 2 GCE9_MM3 -- GCE9 mid-marsh plot 3 GCE9_MM4 -- GCE9 mid-marsh plot 4 GCE9_MM5 -- GCE9 mid-marsh plot 5 GCE9_MM6 -- GCE9 mid-marsh plot 6 GCE9_MM7 -- GCE9 mid-marsh plot 7 GCE9_MM8 -- GCE9 mid-marsh plot 8 SC36Champney1 -- Rapid assessment site creekbank plot SC36Champney1 SC36Champney2 -- Rapid assessment site creekbank plot SC36Champney2 SC36Champney3 -- Rapid assessment site creekbank plot SC36Champney3 SC36Champney4 -- Rapid assessment site creekbank plot SC36Champney4 SC36Champney5 -- Rapid assessment site creekbank plot SC36Champney5 SC36Champney6 -- Rapid assessment site creekbank plot SC36Champney6 SC36Champney7 -- Rapid assessment site creekbank plot SC36Champney7 SC36Champney8 -- Rapid assessment site creekbank plot SC36Champney8 TwoWay1 -- Rapid assessment site creekbank plot TwoWay1 TwoWay2 -- Rapid assessment site creekbank plot TwoWay2 TwoWay3 -- Rapid assessment site creekbank plot TwoWay3 TwoWay4 -- Rapid assessment site creekbank plot TwoWay4 TwoWay5 -- Rapid assessment site creekbank plot TwoWay5 TwoWay6 -- Rapid assessment site creekbank plot TwoWay6 TwoWay7 -- Rapid assessment site creekbank plot TwoWay7 TwoWay8 -- Rapid assessment site creekbank plot TwoWay8 Coordinates: GCE7 -- NW: 081 29 36.59 W, 31 20 55.59 N NE: 081 28 33.24 W, 31 20 55.59 N SE: 081 28 33.24 W, 31 20 03.71 N SW: 081 29 36.59 W, 31 20 03.71 N GCE8 -- NW: 081 25 34.58 W, 31 19 04.11 N NE: 081 24 38.28 W, 31 19 04.11 N SE: 081 24 38.28 W, 31 18 14.63 N SW: 081 25 34.58 W, 31 18 14.63 N GCE9 -- NW: 081 20 48.23 W, 31 21 29.31 N NE: 081 19 35.38 W, 31 21 29.31 N SE: 081 19 35.38 W, 31 20 21.02 N SW: 081 20 48.23 W, 31 20 21.02 N SCSA -- NW: 081 22 34.61 W, 31 19 25.64 N NE: 081 22 16.54 W, 31 19 25.64 N SE: 081 22 16.54 W, 31 19 20.07 N SW: 081 22 34.61 W, 31 19 20.07 N ZSC1 -- NW: 081 27 11.04 W, 31 19 47.07 N NE: 081 26 54.01 W, 31 19 47.07 N SE: 081 26 54.01 W, 31 19 37.01 N SW: 081 27 11.04 W, 31 19 37.01 N ZSC2 -- NW: 081 27 18.91 W, 31 20 31.29 N NE: 081 27 05.14 W, 31 20 31.29 N SE: 081 27 05.14 W, 31 20 19.92 N SW: 081 27 18.91 W, 31 20 19.92 N GCE7_CB1 -- 81 28 43.3 W, 31 20 06.3 N GCE7_CB12 -- 81 28 43.4 W, 31 20 06.1 N GCE7_CB3 -- 81 28 43.4 W, 31 20 05.8 N GCE7_CB4 -- 81 28 43.2 W, 31 20 05.5 N GCE7_CB5 -- 81 28 43.1 W, 31 20 05.1 N GCE7_CB6 -- 81 28 42.8 W, 31 20 04.9 N GCE7_CB7 -- 81 28 42.6 W, 31 20 04.6 N GCE7_CB8 -- 81 28 42.6 W, 31 20 04.3 N GCE7_MM1 -- 81 28 42.9 W, 31 20 06.6 N GCE7_MM2 -- 81 28 42.8 W, 31 20 06.3 N GCE7_MM3 -- 81 28 42.6 W, 31 20 05.8 N GCE7_MM4 -- 81 28 42.5 W, 31 20 05.4 N GCE7_MM5 -- 81 28 42.3 W, 31 20 05.0 N GCE7_MM6 -- 81 28 41.8 W, 31 20 04.7 N GCE7_MM7 -- 81 28 41.3 W, 31 20 04.6 N GCE7_MM8 -- 81 28 40.9 W, 31 20 04.6 N GCE8_CB12 -- 81 24 57.9 W, 31 18 28.8 N GCE8_CB14 -- 81 24 56.6 W, 31 18 27.9 N GCE8_CB26 -- 81 24 55.7 W, 31 18 27.5 N GCE8_CB27 -- 81 24 55.4 W, 31 18 27.2 N GCE8_CB28 -- 81 24 55.2 W, 31 18 27.1 N GCE8_CB3 -- 81 24 56.7 W, 31 18 28.3 N GCE8_CB31 -- 81 24 58.1 W, 31 18 29.0 N GCE8_CB45 -- 81 24 56.1 W, 31 18 27.7 N GCE8_MM1 -- 81 24 56.8 W, 31 18 32.6 N GCE8_MM12 -- 81 24 56.5 W, 31 18 32.3 N GCE8_MM18 -- 81 24 54.5 W, 31 18 30.4 N GCE8_MM23 -- 81 24 56.1 W, 31 18 32.1 N GCE8_MM4 -- 81 24 55.7 W, 31 18 31.9 N GCE8_MM5 -- 81 24 55.2 W, 31 18 31.5 N GCE8_MM6 -- 81 24 54.9 W, 31 18 31.2 N GCE8_MM7 -- 81 24 54.8 W, 31 18 30.7 N GCE9_CB11 -- 81 20 01.4 W, 31 21 07.6 N GCE9_CB14 -- 81 20 03.1 W, 31 21 06.8 N GCE9_CB17 -- 81 20 04.4 W, 31 21 06.2 N GCE9_CB18 -- 81 20 04.8 W, 31 21 06.0 N GCE9_CB2 -- 81 20 01.8 W, 31 21 07.4 N GCE9_CB26 -- 81 20 03.9 W, 31 21 06.4 N GCE9_CB33 -- 81 20 02.3 W, 31 21 07.0 N GCE9_CB5 -- 81 20 03.6 W, 31 21 06.5 N GCE9_JN1 -- 81 20 00.4 W, 31 21 04.6 N GCE9_JN2 -- 81 20 00.0 W, 31 21 04.6 N GCE9_JN3 -- 81 19 59.6 W, 31 21 04.4 N GCE9_JN4 -- 81 19 59.4 W, 31 21 04.1 N GCE9_JN5 -- 81 19 58.4 W, 31 21 03.8 N GCE9_JN6 -- 81 19 57.4 W, 31 21 03.8 N GCE9_JN7 -- 81 19 56.9 W, 31 21 02.7 N GCE9_JN8 -- 81 19 57.1 W, 31 21 02.3 N GCE9_MM1 -- 81 20 01.5 W, 31 21 04.3 N GCE9_MM2 -- 81 20 00.9 W, 31 21 04.3 N GCE9_MM3 -- 81 20 00.5 W, 31 21 04.2 N GCE9_MM4 -- 81 20 00.0 W, 31 21 03.8 N GCE9_MM5 -- 81 19 59.0 W, 31 21 03.3 N GCE9_MM6 -- 81 19 58.6 W, 31 21 03.2 N GCE9_MM7 -- 81 19 58.0 W, 31 21 03.0 N GCE9_MM8 -- 81 19 57.5 W, 31 21 02.9 N SC36Champney1 -- 81 27 18.2 W, 31 20 28.8 N SC36Champney2 -- 81 27 18.1 W, 31 20 28.8 N SC36Champney3 -- 81 27 18.0 W, 31 20 28.6 N SC36Champney4 -- 81 27 17.7 W, 31 20 28.5 N SC36Champney5 -- 81 27 17.4 W, 31 20 28.3 N SC36Champney6 -- 81 27 17.2 W, 31 20 28.0 N SC36Champney7 -- 81 27 16.9 W, 31 20 27.9 N SC36Champney8 -- 81 27 16.9 W, 31 20 27.8 N TwoWay1 -- 81 27 00.3 W, 31 19 43.0 N TwoWay2 -- 81 27 00.1 W, 31 19 43.0 N TwoWay3 -- 81 27 00.0 W, 31 19 43.2 N TwoWay4 -- 81 26 59.9 W, 31 19 43.3 N TwoWay5 -- 81 26 59.3 W, 31 19 43.3 N TwoWay6 -- 81 26 59.0 W, 31 19 43.2 N TwoWay7 -- 81 26 58.8 W, 31 19 43.3 N TwoWay8 -- 81 26 58.4 W, 31 19 43.5 N b. Physiographic Region: GCE7 -- Lower coastal plain GCE8 -- Lower coastal plain GCE9 -- Barrier island SCSA -- Lower coastal plain ZSC1 -- Lower coastal plain ZSC2 -- Lower coastal plain GCE7_CB1 -- Lower coastal plain GCE7_CB12 -- Lower coastal plain GCE7_CB3 -- Lower coastal plain GCE7_CB4 -- Lower coastal plain GCE7_CB5 -- Lower coastal plain GCE7_CB6 -- Lower coastal plain GCE7_CB7 -- Lower coastal plain GCE7_CB8 -- Lower coastal plain GCE7_MM1 -- Lower coastal plain GCE7_MM2 -- Lower coastal plain GCE7_MM3 -- Lower coastal plain GCE7_MM4 -- Lower coastal plain GCE7_MM5 -- Lower coastal plain GCE7_MM6 -- Lower coastal plain GCE7_MM7 -- Lower coastal plain GCE7_MM8 -- Lower coastal plain GCE8_CB12 -- Lower coastal plain GCE8_CB14 -- Lower coastal plain GCE8_CB26 -- Lower coastal plain GCE8_CB27 -- Lower coastal plain GCE8_CB28 -- Lower coastal plain GCE8_CB3 -- Lower coastal plain GCE8_CB31 -- Lower coastal plain GCE8_CB45 -- Lower coastal plain GCE8_MM1 -- Lower coastal plain GCE8_MM12 -- Lower coastal plain GCE8_MM18 -- Lower coastal plain GCE8_MM23 -- Lower coastal plain GCE8_MM4 -- Lower coastal plain GCE8_MM5 -- Lower coastal plain GCE8_MM6 -- Lower coastal plain GCE8_MM7 -- Lower coastal plain GCE9_CB11 -- Barrier island GCE9_CB14 -- Barrier island GCE9_CB17 -- Barrier island GCE9_CB18 -- Barrier island GCE9_CB2 -- Barrier island GCE9_CB26 -- Barrier island GCE9_CB33 -- Barrier island GCE9_CB5 -- Barrier island GCE9_JN1 -- Barrier island GCE9_JN2 -- Barrier island GCE9_JN3 -- Barrier island GCE9_JN4 -- Barrier island GCE9_JN5 -- Barrier island GCE9_JN6 -- Barrier island GCE9_JN7 -- Barrier island GCE9_JN8 -- Barrier island GCE9_MM1 -- Barrier island GCE9_MM2 -- Barrier island GCE9_MM3 -- Barrier island GCE9_MM4 -- Barrier island GCE9_MM5 -- Barrier island GCE9_MM6 -- Barrier island GCE9_MM7 -- Barrier island GCE9_MM8 -- Barrier island SC36Champney1 -- Lower coastal plain SC36Champney2 -- Lower coastal plain SC36Champney3 -- Lower coastal plain SC36Champney4 -- Lower coastal plain SC36Champney5 -- Lower coastal plain SC36Champney6 -- Lower coastal plain SC36Champney7 -- Lower coastal plain SC36Champney8 -- Lower coastal plain TwoWay1 -- Lower coastal plain TwoWay2 -- Lower coastal plain TwoWay3 -- Lower coastal plain TwoWay4 -- Lower coastal plain TwoWay5 -- Lower coastal plain TwoWay6 -- Lower coastal plain TwoWay7 -- Lower coastal plain TwoWay8 -- Lower coastal plain c. Landform Components: GCE7 -- Freshwater tidal marsh, devegetated fields GCE8 -- Brackish tidal marsh GCE9 -- Intertidal salt marsh SCSA -- Estuarine tidal marsh ZSC1 -- Estuarine tidal marsh ZSC2 -- Estuarine tidal marsh GCE7_CB1 -- Freshwater tidal marsh, devegetated fields GCE7_CB12 -- Freshwater tidal marsh, devegetated fields GCE7_CB3 -- Freshwater tidal marsh, devegetated fields GCE7_CB4 -- Freshwater tidal marsh, devegetated fields GCE7_CB5 -- Freshwater tidal marsh, devegetated fields GCE7_CB6 -- Freshwater tidal marsh, devegetated fields GCE7_CB7 -- Freshwater tidal marsh, devegetated fields GCE7_CB8 -- Freshwater tidal marsh, devegetated fields GCE7_MM1 -- Freshwater tidal marsh, devegetated fields GCE7_MM2 -- Freshwater tidal marsh, devegetated fields GCE7_MM3 -- Freshwater tidal marsh, devegetated fields GCE7_MM4 -- Freshwater tidal marsh, devegetated fields GCE7_MM5 -- Freshwater tidal marsh, devegetated fields GCE7_MM6 -- Freshwater tidal marsh, devegetated fields GCE7_MM7 -- Freshwater tidal marsh, devegetated fields GCE7_MM8 -- Freshwater tidal marsh, devegetated fields GCE8_CB12 -- Brackish tidal marsh GCE8_CB14 -- Brackish tidal marsh GCE8_CB26 -- Brackish tidal marsh GCE8_CB27 -- Brackish tidal marsh GCE8_CB28 -- Brackish tidal marsh GCE8_CB3 -- Brackish tidal marsh GCE8_CB31 -- Brackish tidal marsh GCE8_CB45 -- Brackish tidal marsh GCE8_MM1 -- Brackish tidal marsh GCE8_MM12 -- Brackish tidal marsh GCE8_MM18 -- Brackish tidal marsh GCE8_MM23 -- Brackish tidal marsh GCE8_MM4 -- Brackish tidal marsh GCE8_MM5 -- Brackish tidal marsh GCE8_MM6 -- Brackish tidal marsh GCE8_MM7 -- Brackish tidal marsh GCE9_CB11 -- Intertidal salt marsh GCE9_CB14 -- Intertidal salt marsh GCE9_CB17 -- Intertidal salt marsh GCE9_CB18 -- Intertidal salt marsh GCE9_CB2 -- Intertidal salt marsh GCE9_CB26 -- Intertidal salt marsh GCE9_CB33 -- Intertidal salt marsh GCE9_CB5 -- Intertidal salt marsh GCE9_JN1 -- Intertidal salt marsh GCE9_JN2 -- Intertidal salt marsh GCE9_JN3 -- Intertidal salt marsh GCE9_JN4 -- Intertidal salt marsh GCE9_JN5 -- Intertidal salt marsh GCE9_JN6 -- Intertidal salt marsh GCE9_JN7 -- Intertidal salt marsh GCE9_JN8 -- Intertidal salt marsh GCE9_MM1 -- Intertidal salt marsh GCE9_MM2 -- Intertidal salt marsh GCE9_MM3 -- Intertidal salt marsh GCE9_MM4 -- Intertidal salt marsh GCE9_MM5 -- Intertidal salt marsh GCE9_MM6 -- Intertidal salt marsh GCE9_MM7 -- Intertidal salt marsh GCE9_MM8 -- Intertidal salt marsh SC36Champney1 -- Estuarine tidal marsh SC36Champney2 -- Estuarine tidal marsh SC36Champney3 -- Estuarine tidal marsh SC36Champney4 -- Estuarine tidal marsh SC36Champney5 -- Estuarine tidal marsh SC36Champney6 -- Estuarine tidal marsh SC36Champney7 -- Estuarine tidal marsh SC36Champney8 -- Estuarine tidal marsh TwoWay1 -- Estuarine tidal marsh TwoWay2 -- Estuarine tidal marsh TwoWay3 -- Estuarine tidal marsh TwoWay4 -- Estuarine tidal marsh TwoWay5 -- Estuarine tidal marsh TwoWay6 -- Estuarine tidal marsh TwoWay7 -- Estuarine tidal marsh TwoWay8 -- Estuarine tidal marsh d. Hydrographic Characteristics: GCE7 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE8 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE9 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides SCSA -- Site borders the Altamaha River, and is subject to 2-3m semi-diurnal tides ZSC1 -- Site borders the Altamaha River, and is subject to 2-3m semi-diurnal tides ZSC2 -- Site borders the Champney River, and is subject to 2-3m semi-diurnal tides GCE7_CB1 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE7_CB12 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE7_CB3 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE7_CB4 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE7_CB5 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE7_CB6 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE7_CB7 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE7_CB8 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE7_MM1 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE7_MM2 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE7_MM3 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE7_MM4 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE7_MM5 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE7_MM6 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE7_MM7 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE7_MM8 -- Site contains Hammersmith Creek and borders the South Champney River, and is subject to 2-3m semi-diurnal tides GCE8_CB12 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE8_CB14 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE8_CB26 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE8_CB27 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE8_CB28 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE8_CB3 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE8_CB31 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE8_CB45 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE8_MM1 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE8_MM12 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE8_MM18 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE8_MM23 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE8_MM4 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE8_MM5 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE8_MM6 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE8_MM7 -- Site contains the Altamaha River, and is subject to 2-3m semi-diurnal tides GCE9_CB11 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_CB14 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_CB17 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_CB18 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_CB2 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_CB26 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_CB33 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_CB5 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_JN1 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_JN2 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_JN3 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_JN4 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_JN5 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_JN6 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_JN7 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_JN8 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_MM1 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_MM2 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_MM3 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_MM4 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_MM5 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_MM6 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_MM7 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides GCE9_MM8 -- Site contains Crooked Creek and borders the Little Mud River, and is subject to 2-3m semi-diurnal tides SC36Champney1 -- Site borders the Champney River, and is subject to 2-3m semi-diurnal tides SC36Champney2 -- Site borders the Champney River, and is subject to 2-3m semi-diurnal tides SC36Champney3 -- Site borders the Champney River, and is subject to 2-3m semi-diurnal tides SC36Champney4 -- Site borders the Champney River, and is subject to 2-3m semi-diurnal tides SC36Champney5 -- Site borders the Champney River, and is subject to 2-3m semi-diurnal tides SC36Champney6 -- Site borders the Champney River, and is subject to 2-3m semi-diurnal tides SC36Champney7 -- Site borders the Champney River, and is subject to 2-3m semi-diurnal tides SC36Champney8 -- Site borders the Champney River, and is subject to 2-3m semi-diurnal tides TwoWay1 -- Site borders the Altamaha River, and is subject to 2-3m semi-diurnal tides TwoWay2 -- Site borders the Altamaha River, and is subject to 2-3m semi-diurnal tides TwoWay3 -- Site borders the Altamaha River, and is subject to 2-3m semi-diurnal tides TwoWay4 -- Site borders the Altamaha River, and is subject to 2-3m semi-diurnal tides TwoWay5 -- Site borders the Altamaha River, and is subject to 2-3m semi-diurnal tides TwoWay6 -- Site borders the Altamaha River, and is subject to 2-3m semi-diurnal tides TwoWay7 -- Site borders the Altamaha River, and is subject to 2-3m semi-diurnal tides TwoWay8 -- Site borders the Altamaha River, and is subject to 2-3m semi-diurnal tides e. Topographic Attributes: GCE7 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9 -- Flat, with elevations ranging from 0-3m above mean low tide SCSA -- Flat, with elevations ranging from 0-3m above mean low tide ZSC1 -- Flat, with elevations ranging from 0-3m above mean low tide ZSC2 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_CB1 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_CB12 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_CB3 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_CB4 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_CB5 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_CB6 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_CB7 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_CB8 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_MM1 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_MM2 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_MM3 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_MM4 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_MM5 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_MM6 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_MM7 -- Flat, with elevations ranging from 0-3m above mean low tide GCE7_MM8 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_CB12 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_CB14 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_CB26 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_CB27 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_CB28 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_CB3 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_CB31 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_CB45 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_MM1 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_MM12 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_MM18 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_MM23 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_MM4 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_MM5 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_MM6 -- Flat, with elevations ranging from 0-3m above mean low tide GCE8_MM7 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_CB11 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_CB14 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_CB17 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_CB18 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_CB2 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_CB26 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_CB33 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_CB5 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_JN1 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_JN2 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_JN3 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_JN4 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_JN5 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_JN6 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_JN7 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_JN8 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_MM1 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_MM2 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_MM3 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_MM4 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_MM5 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_MM6 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_MM7 -- Flat, with elevations ranging from 0-3m above mean low tide GCE9_MM8 -- Flat, with elevations ranging from 0-3m above mean low tide SC36Champney1 -- Flat, with elevations ranging from 0-3m above mean low tide SC36Champney2 -- Flat, with elevations ranging from 0-3m above mean low tide SC36Champney3 -- Flat, with elevations ranging from 0-3m above mean low tide SC36Champney4 -- Flat, with elevations ranging from 0-3m above mean low tide SC36Champney5 -- Flat, with elevations ranging from 0-3m above mean low tide SC36Champney6 -- Flat, with elevations ranging from 0-3m above mean low tide SC36Champney7 -- Flat, with elevations ranging from 0-3m above mean low tide SC36Champney8 -- Flat, with elevations ranging from 0-3m above mean low tide TwoWay1 -- Flat, with elevations ranging from 0-3m above mean low tide TwoWay2 -- Flat, with elevations ranging from 0-3m above mean low tide TwoWay3 -- Flat, with elevations ranging from 0-3m above mean low tide TwoWay4 -- Flat, with elevations ranging from 0-3m above mean low tide TwoWay5 -- Flat, with elevations ranging from 0-3m above mean low tide TwoWay6 -- Flat, with elevations ranging from 0-3m above mean low tide TwoWay7 -- Flat, with elevations ranging from 0-3m above mean low tide TwoWay8 -- Flat, with elevations ranging from 0-3m above mean low tide f. Geology, Lithology and Soils: GCE7 -- unspecified GCE8 -- unspecified GCE9 -- unspecified SCSA -- unspecified ZSC1 -- unspecified ZSC2 -- unspecified GCE7_CB1 -- unspecified GCE7_CB12 -- unspecified GCE7_CB3 -- unspecified GCE7_CB4 -- unspecified GCE7_CB5 -- unspecified GCE7_CB6 -- unspecified GCE7_CB7 -- unspecified GCE7_CB8 -- unspecified GCE7_MM1 -- unspecified GCE7_MM2 -- unspecified GCE7_MM3 -- unspecified GCE7_MM4 -- unspecified GCE7_MM5 -- unspecified GCE7_MM6 -- unspecified GCE7_MM7 -- unspecified GCE7_MM8 -- unspecified GCE8_CB12 -- unspecified GCE8_CB14 -- unspecified GCE8_CB26 -- unspecified GCE8_CB27 -- unspecified GCE8_CB28 -- unspecified GCE8_CB3 -- unspecified GCE8_CB31 -- unspecified GCE8_CB45 -- unspecified GCE8_MM1 -- unspecified GCE8_MM12 -- unspecified GCE8_MM18 -- unspecified GCE8_MM23 -- unspecified GCE8_MM4 -- unspecified GCE8_MM5 -- unspecified GCE8_MM6 -- unspecified GCE8_MM7 -- unspecified GCE9_CB11 -- unspecified GCE9_CB14 -- unspecified GCE9_CB17 -- unspecified GCE9_CB18 -- unspecified GCE9_CB2 -- unspecified GCE9_CB26 -- unspecified GCE9_CB33 -- unspecified GCE9_CB5 -- unspecified GCE9_JN1 -- unspecified GCE9_JN2 -- unspecified GCE9_JN3 -- unspecified GCE9_JN4 -- unspecified GCE9_JN5 -- unspecified GCE9_JN6 -- unspecified GCE9_JN7 -- unspecified GCE9_JN8 -- unspecified GCE9_MM1 -- unspecified GCE9_MM2 -- unspecified GCE9_MM3 -- unspecified GCE9_MM4 -- unspecified GCE9_MM5 -- unspecified GCE9_MM6 -- unspecified GCE9_MM7 -- unspecified GCE9_MM8 -- unspecified SC36Champney1 -- unspecified SC36Champney2 -- unspecified SC36Champney3 -- unspecified SC36Champney4 -- unspecified SC36Champney5 -- unspecified SC36Champney6 -- unspecified SC36Champney7 -- unspecified SC36Champney8 -- unspecified TwoWay1 -- unspecified TwoWay2 -- unspecified TwoWay3 -- unspecified TwoWay4 -- unspecified TwoWay5 -- unspecified TwoWay6 -- unspecified TwoWay7 -- unspecified TwoWay8 -- unspecified g. Vegetation Communities: GCE7 -- dominated by Zizaniopsis GCE8 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE9 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. SCSA -- Spartina alterniflora and Spartina cynosuroides ZSC1 -- Spartina cynosuroides and Zizaniopsis miliacea ZSC2 -- Spartina cynosuroides and Zizaniopsis miliacea GCE7_CB1 -- dominated by Zizaniopsis GCE7_CB12 -- dominated by Zizaniopsis GCE7_CB3 -- dominated by Zizaniopsis GCE7_CB4 -- dominated by Zizaniopsis GCE7_CB5 -- dominated by Zizaniopsis GCE7_CB6 -- dominated by Zizaniopsis GCE7_CB7 -- dominated by Zizaniopsis GCE7_CB8 -- dominated by Zizaniopsis GCE7_MM1 -- dominated by Zizaniopsis GCE7_MM2 -- dominated by Zizaniopsis GCE7_MM3 -- dominated by Zizaniopsis GCE7_MM4 -- dominated by Zizaniopsis GCE7_MM5 -- dominated by Zizaniopsis GCE7_MM6 -- dominated by Zizaniopsis GCE7_MM7 -- dominated by Zizaniopsis GCE7_MM8 -- dominated by Zizaniopsis GCE8_CB12 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE8_CB14 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE8_CB26 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE8_CB27 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE8_CB28 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE8_CB3 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE8_CB31 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE8_CB45 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE8_MM1 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE8_MM12 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE8_MM18 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE8_MM23 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE8_MM4 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE8_MM5 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE8_MM6 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE8_MM7 -- Fringe of tall Spartina alterniflora and S. cynosuroides at creek banks. High marsh has narrow band of medium height S. alterniflora backed by vast expanses of Juncus. GCE9_CB11 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_CB14 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_CB17 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_CB18 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_CB2 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_CB26 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_CB33 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_CB5 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_JN1 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_JN2 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_JN3 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_JN4 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_JN5 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_JN6 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_JN7 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_JN8 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_MM1 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_MM2 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_MM3 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_MM4 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_MM5 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_MM6 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_MM7 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. GCE9_MM8 -- Low marsh is tall Spartina alterniflora, high marsh has a small amount of medium Spartina alterniflora and lots of Juncus. Some hammocks with upland vegetation. SC36Champney1 -- Spartina cynosuroides and Zizaniopsis miliacea SC36Champney2 -- Spartina cynosuroides and Zizaniopsis miliacea SC36Champney3 -- Spartina cynosuroides and Zizaniopsis miliacea SC36Champney4 -- Spartina cynosuroides and Zizaniopsis miliacea SC36Champney5 -- Spartina cynosuroides and Zizaniopsis miliacea SC36Champney6 -- Spartina cynosuroides and Zizaniopsis miliacea SC36Champney7 -- Spartina cynosuroides and Zizaniopsis miliacea SC36Champney8 -- Spartina cynosuroides and Zizaniopsis miliacea TwoWay1 -- Spartina cynosuroides and Zizaniopsis miliacea TwoWay2 -- Spartina cynosuroides and Zizaniopsis miliacea TwoWay3 -- Spartina cynosuroides and Zizaniopsis miliacea TwoWay4 -- Spartina cynosuroides and Zizaniopsis miliacea TwoWay5 -- Spartina cynosuroides and Zizaniopsis miliacea TwoWay6 -- Spartina cynosuroides and Zizaniopsis miliacea TwoWay7 -- Spartina cynosuroides and Zizaniopsis miliacea TwoWay8 -- Spartina cynosuroides and Zizaniopsis miliacea h. History of Land Use and Disturbance: GCE7 -- Oct 01, 2000: Permanent plots were established in two nominal marsh zones based on marsh structure -- creek zone and high marsh -- and eight plots were randomly located in each zone and marked with stakes Oct 01, 2001: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No significant disturbance was observed, and no plots were replaced. Oct 17, 2002: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No significant disturbance was observed, and no plots were replaced. Oct 17, 2003: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No evidence of plot disturbance was observed, and no plots were replaced. Oct 23, 2004: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No evidence of plot disturbance was observed, and no plots were replaced. Oct 21, 2005: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were distrurbed by wildlife, none were lost due to creekbank erosion, and none were replaced. Oct 14, 2006: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following creekbank plots are on creekbank areas that are collapsing: C7. No plots were disturbed by wrack or wildlife, and none were replaced. Oct 20, 2007: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were lost or disturbed by wrack or wildlife, and none were replaced. Oct 25, 2008: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: none. The following plots were disturbed by wrack: none. The following plots were distrurbed by wildlife (some may have no shoots): none. The following plots are on creekbank areas that are collapsing: none. No plots were replaced. Oct 14, 2009: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed or lost, and none were replaced. Oct 18, 2010: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed or lost, and none were replaced. Oct 24, 2011: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity and were replaced: C2 (now C12). Oct 12, 2012: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed by creekbank erosion, wrack or wildlife, and none were replaced. Oct 14, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following creekbank plots are on creekbank areas that are collapsing: C7. No plots were lost and none were replaced. Oct 20, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance was noted, and no plots were replaced. Oct 23, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots are on creekbank areas that are collapsing (slumping): C3, C7. No plots were disturbed by wrack or wildlife and none were lost and replaced. GCE8 -- Oct 01, 2000: Permanent plots were established in two nominal marsh zones based on marsh structure -- creek zone and high marsh -- and eight plots were randomly located in each zone and marked with stakes Oct 01, 2001: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to catastrophic disturbance and replaced with new plots as indicated: zone 1 plots 5, 6, 7, 8 (added new plots 15, 16, 17, 18). New plots were not in exactly the same locations as lost plots, and so have new numbers. Oct 17, 2002: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack (some have no shoots): C4. The following plots were disturbed by wildlife (some have no shoots): M2, M3, M4, M7 (pigs). No disturbance due to creekbank collapse was observed, and no plots were replaced. Oct 17, 2003: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wildlife (some have no shoots): M2, M4. The following creekbank plots are on creekbank areas that are collapsing: C2. No disturbance by wrack was observed, but plot M8 was merging with the path and was relocated as M18. Oct 23, 2004: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wildlife (some have no shoots): M2. The following creekbank plots are on creekbank areas that are collapsing: C2. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: M3. No plots were replaced. Oct 21, 2005: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots are on creekbank areas that are collapsing: C2, C16. The following plots were disturbed by wildlife: M1, M4. No plots were lost due to creekbank erosion, and none were replaced. Oct 14, 2006: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C1, C4, C15, C16, C17, C18. The following plots had no live shoots due to seasonal senescence: M2. No plots were disturbed by wrack or wildlife, and none were replaced. Oct 20, 2007: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost for unknown reasons: C2, C11. The following plots were disturbed by wrack or wildlife activity: M1, M2, M7, M13. No plots were replaced. Oct 25, 2008: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: none. The following plots were disturbed by wrack: C26, M4. The following plots were distrurbed by wildlife (some may have no shoots): none. The following plots are on creekbank areas that are collapsing: none. No plots were replaced. Oct 14, 2009: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wildlife: M1, M2 (pigs). No plots were disturbed by wrack or were on creekbank areas that are collapsing, and no plots were lost or replaced. Oct 18, 2010: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C26. The following plots were disturbed by wildlife (some may have no shoots): M1, M2, M13 (pigs). The following creekbank plots are on creekbank areas that are collapsing: C12, C14. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C27, C28 (replaced with C37, C38 resp.). Oct 24, 2011: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots are on sections of creek bank that are collapsing: C25. The following plots were disturbed by wildlife and may have no shoots: M2, M13, M18. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity and were replaced: M1 (now M11). Oct 12, 2012: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wildlife: M1, M2, M6, M7, M18. The following plot was lost due to creekbank erosion: C21 (replaced by C31). Also, no living plants were observed in plots M1, M2. Oct 14, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wildlife (some may have no shoots): M1, M2, M13 (pigs). The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife: C25 (replaced with C35). Oct 21, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance was recorded, but plots C35, M1, M2 and M13 were renumbered as C45, M11, M12 and M23 for unspecified reasons. Oct 23, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C3. The following plots are on creekbank areas that are collapsing (slumping): C14. No plots were disturbed by wildlife and none were lost and replaced. GCE9 -- Oct 01, 2000: Permanent plots were established in two nominal marsh zones based on marsh structure -- creek zone and high marsh -- and eight plots were randomly located in each zone and marked with stakes. Oct 01, 2001: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to catastrophic disturbance and replaced with new plots as indicated: zone 1, plot 4 (added new plot 14). New plots were not in exactly the same locations as lost plots, and so have new numbers. Oct 17, 2002: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack (some have no shoots): C5, C6, C8. The following creekbank plots are on creekbank areas that are collapsing: C1, C6. The following plots were lost due to creekbank erosion or catastrophic wrack disturbance: C3 (replaced with C13). No disturbance by wildlife activity was observed. Oct 18, 2003: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack (some have no shoots): C1, C2, C6, C13. The following creekbank plots are on creekbank areas that are collapsing: C1, C2, C6. The following plots were lost due to creekbank erosion or catastrophic wrack inundation and were replaced: C5, C7, C8 (replaced with C15, C17, C18). No disturbance by wildlife activity was observed. Oct 23, 2004: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C13, C14, C6. No disturbance by wildlife activity was observed, and no plots were lost or replaced. Oct 21, 2005: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C2, C18. No plots were distrurbed by wildlife, none were lost due to creekbank erosion, and none were replaced. Oct 14, 2006: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C14. No plots were disturbed by wildlife or lost, and none were replaced. Oct 21, 2007: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack or wildlife activity: C1, C2, C13. No plots were lost and none were replaced. Oct 25, 2008: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: none. The following plots were disturbed by wrack: C2. The following plots were distrurbed by wildlife (some may have no shoots): none. The following plots are on creekbank areas that are collapsing: C1, C13, C16. No plots were replaced. Oct 15, 2009: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C1, C13. The following plots were disturbed by wrack: C16. No plots were otherwise disturbed by wildlife or are on creekbank areas that are collapsing and none were replaced. Oct 21, 2010: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C16. The following plots are on creekbank areas that are collapsing: C16, C23. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity: C2, C11, C14 (replaced with C12, C21 and C24, resp.). No plots were disturbed by wildlife. Oct 24, 2011: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C24. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife activity and were replaced: C16 (now C26), C23 (now C32). Oct 12, 2012: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No plots were disturbed by creekbank erosion, wrack or wildlife, and none were replaced. Oct 15, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following creekbank plots are on creekbank areas that are collapsing: C18. The following plots were lost due to creekbank erosion, catastrophic wrack disturbance, or catastrophic wildlife: C21 (replaced with C31), C33 (replaced with C43). Oct 15, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance was observed, and no plots were replaced. Oct 21, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance was observed, and no plots were replaced. SCSA -- Oct 14, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C1. The following plots are located on creek bank areas that are collapsing: C1, C4. Oct 17, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots are on creekbank areas that are collapsing: C4, C7. The following plots were lost and replaced: C1 (replaced with C11). Oct 22, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots are on creekbank areas that are collapsing: C5. The following plots were lost due to creekbank erosion (terminal slump) and replaced: C11, C4, C7, C8 (replaced with C21, C14, C17, C18 resp). ZSC1 -- Oct 14, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance was observed, and no plots were replaced. Oct 17, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance was observed, and no plots were lost and replaced. Oct 22, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance was observed, and no plots were lost and replaced. ZSC2 -- Oct 14, 2013: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. No disturbance was observed, and no plots were replaced. Oct 17, 2014: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following plots were disturbed by wrack: C3 (no plants). No plots were lost and replaced. Oct 22, 2015: Plots were examined for signs of disturbance by wrack inundation, animal activity, and creek bank erosion. The following creekbank plots are on creekbank areas that are collapsing (slump): C3. Not plots were lost and none were replaced. i. Climate: Climate summary for Sapelo Island, Georgia, based on NWS data from 1980-2010: Daily-aggregated Values: Mean (sample standard deviation) mean air temperature: 20.09°C (7.28°C) minimum air temperature: 15.02°C (7.96°C) maximum air temperature: 24.82°C (6.98°C) total precipitation: 3.26mm (10.3mm) Yearly-aggregated Daily Values: Mean (sample standard deviation) total precipitation (1980-2010): 1124mm (266mm) 2. Experimental or Sampling Design a. Design Characteristics: Quarterly surveys were conducted between October 2017 and October 2018 to measure the species and size distribution of plants in the permanent plots at GCE LTER sampling sites 7,8, and 9 as well as Altamaha River Transition sites SCSA, ZSC1, and ZSC2. b. Permanent Plots: We established permanent vegetation monitoring plots in creekbank and midmarsh at GCE sites 1-10 in 2000. A dedicated Juncus zone was later added at sites 10 and 9. In 2012 we established creekbank permanent vegetation monitoring plots at Altamaha River transition sites SCSA, ZSC1, and ZSC2. Eight plots were randomly located in each zone and marked with stakes. Plots are visually inspected prior to each survey for signs of disturbance by wrack inundation, wildlife activity, and creekbank erosion. Plots lost due to catastrophic disturbance are replaced with new plots in different locations within the same marsh zone, which are assigned distinct plot numbers. c. Data Collection Duration and Frequency: A stratified random quadrat sampling design was used to determine the species and size distribution of plants GCE LTER sampling sits 7,8,9 and Altamaha River transition sites SCSA, ZSC1, and ZSC2. Beginning of Observations: Oct 14, 2017 End of Observations: Oct 23, 2017 3. Research Methods a. Field and Laboratory Methods: Method 1: Quadrat sampling -- Quadrats were randomly placed within two nominal marsh zones at each site (eight plots per zone) to create permanent plots. The quadrats were marked using PVC or wooden stakes and varied in size, measuring 0.5m by 0.5m, 1m by 0.5m, or 0.25m by 0.25m, as indicated in the "Quadrat_Area" data column. Method 2: Plant measurement -- The taxon, shoot height, and flowering status was recorded for each live shoot > 10cm in height present in each quadrat. Method 3: RTK-GPS Survey of Permanent Plot Locations -- A survey was performed in April 2010 to measure the precise geographic locations and elevations of long-term plant plots at GCE-LTER marsh study sites 1-10. The survey was performed using a Trimble R6 real-time kinematic GPS sytem with Global Navigation Satellite System (GLONASS) support. The base receiver was placed on a permanent cement base installed near each field site, connected to GLONASS satellite services via mobile 3G Internet connection, and allowed to establish a stable benchmark positional fix prior to the survey. A portable wireless rover unit was then used to collect and log horizontal position and vertical elevation data on the ground at the center of each plot. Data were then corrected and analyzed using Trimble Geomatics Office software to determine latitude, longitude and elevation, and plant plot locations were then registered in the GCE-LTER geographic database. Location, Longitude and Latitude columns were then added to the data table based on matching site, marsh zone and plot number of each record to the corresponding plot identifier in the geographic database. For plots that were lost due to catastrophic disturbance prior to 2010 and replaced, the measured location of the the replacement plots were used to provide estimated positional information for the legacy plots, and the estimated values were flagged and the level of uncertainty was described based on the number of times the plot was replaced prior to RTK-GPS survey. Method 4: Biomass Calculation -- Plant biomass was calculated for predominant flowering plants based on the allometric relationships between plant height, flowering status and biomass calculated by site, zone and species using the formula: ln(Biomass) = constant + htslope*ln(Plant_Height) + flslope*ln(Flowering_Status). NOTE: these calculations are based on relationships measured in the fall and may not be valid at other seasons. b. Protocols: Method 1: none Method 2: none Method 3: none Method 4: none c. Instrumentation: Method 1: none Method 2: PVC ruler Parameter: length Method 3: RTK GPS Manufacturer: Trimble (Model: R6) Parameter: Elevation (Accuracy: 20mm + 1 ppm RMS, Readability: 1mm, ) Protocol: Base receiver is placed on a permanent cement base installed near each field site, connected to GLONASS satellite services via mobile 3G Internet connection, and allowed to establish a stable benchmark positional fix. A portable wireless rover unit is then used to collect and log horizontal position and vertical elevation data for sites being surveyed. Parameter: Latitude (Accuracy: 10 mm + 1 ppm RMS, Readability: 1mm, Range: 0-90 degrees) Protocol: Base receiver is placed on a permanent cement base installed near each field site, connected to GLONASS satellite services via mobile 3G Internet connection, and allowed to establish a stable benchmark positional fix. A portable wireless rover unit is then used to collect and log horizontal position and vertical elevation data for sites being surveyed. Parameter: Longitude (Accuracy: 10 mm + 1 ppm RMS, Readability: 1mm, Range: 0-180 degrees) Protocol: Base receiver is placed on a permanent cement base installed near each field site, connected to GLONASS satellite services via mobile 3G Internet connection, and allowed to establish a stable benchmark positional fix. A portable wireless rover unit is then used to collect and log horizontal position and vertical elevation data for sites being surveyed. Method 4: none d. Taxonomy and Systematics: Method 1: not specified Method 2: not specified Method 3: none Method 4: not applicable e. Speclies List: f. Permit History: Method 1: none Method 2: none Method 3: none Method 4: not applicable 4. Project Personnel a. Personnel: 1: Steven C. Pennings 2: Adam Sapp 3: Wade M. Sheldon, Jr. b. Affiliations: 1: University of Houston, Houston, Texas 2: University of Georgia, Athens, Georgia 3: University of Georgia, Athens, Georgia III. Data Set Status and Accessibility A. Status 1. Latest Update: 06-Feb-2020 2. Latest Archive Date: 06-Feb-2020 3. Latest Metadata Update: 06-Feb-2020 4. Data Verification Status: New Submission B. Accessibility 1. Storage Location and Medium: Stored at GCE-LTER Data Management Office Dept. of Marine Sciences Univ. of Georgia Athens, GA 30602-3636 USA on media: electronic data download (WWW) or compact disk 2. Contact Person: Name: Wade M. Sheldon, Jr. Address: 130 Marine Sciences Marine Sciences Building Athens, Georgia 30602-3636 Country: USA Email: sheldon@uga.edu 3. Copyright Restrictions: not copyrighted 4. Restrictions: All publications based on this data set must cite the contributor and NSF grant number a. Release Date: Affiliates: Feb 06, 2020, Public: Feb 06, 2022 b. Citation: Data provided by the Georgia Coastal Ecosystems Long Term Ecological Research Project, supported by funds from NSF OCE 1803159 (data set PLT-IRMA-2002) c. Disclaimer: The user assumes all responsibility for errors in judgement based on interpretation of data and analyses presented in this data set. 5. Costs: free electronic data download via WWW, distribution on CD may be subject to nominal processing and handling fee IV. Data Structural Descriptors A. Data Set File 1. File Name: PLT-IRMA-2002_1_0.CSV 2. Size: 6455 records 3. File Format: ASCII text (comma-separated value format) 3a. Delimiters: single comma 4. Header Information: 5 lines of ASCII text 5. Alphanumeric Attributes: 6. Quality Control Flag Codes: Q = questionable value, I = invalid value (out of range) 7. Authentication Procedures: 8. Calculations: Quadrat_Area(m^2) = Quadrat_Length(m) * Quadrat_Width(m) Plant_Biomass(g) = e^(constant + htslope*ln(Shoot_Height(cm)) + flslope*(Flowering_Status)), based on the following parameter estimates for constant, htslope and flslope from curve fits of allometry data by plot, marsh zone and species, respectively: Site 1, Zone 1, Species_Code A1, Year 2002: -6.83, 1.806, 0.354; Site 1, Zone 2, Species_Code A3, Year 2002: -7.873, 1.731, 0; Site 1, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 1, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 1, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 1, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 1, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 1, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 2, Zone 1, Species_Code A1, Year 2002: -6.325, 1.869, 0; Site 2, Zone 2, Species_Code A1, Year 2002: -8.458, 2.366, -0.455; Site 2, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 2, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 2, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 2, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 2, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 2, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 3, Zone 1, Species_Code A1, Year 2002: -5.669, 1.672, 0; Site 3, Zone 2, Species_Code A1, Year 2002: -7.261, 2.062, -0.36; Site 3, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 3, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 3, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 3, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 3, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 3, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 4, Zone 1, Species_Code A1, Year 2002: -6.583, 1.87, 0; Site 4, Zone 2, Species_Code A1, Year 2002: -6.231, 1.71, 0; Site 4, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 4, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 4, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 4, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 4, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 4, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 5, Zone 1, Species_Code A1, Year 2002: -6.944, 1.938, 0.205; Site 5, Zone 2, Species_Code A1, Year 2002: -7.738, 2.066, 0; Site 5, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 5, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 5, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 5, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 5, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 5, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 6, Zone 1, Species_Code A1, Year 2002: -6.095, 1.76, 0.212; Site 6, Zone 2, Species_Code A1, Year 2002: -6.934, 1.973, 0; Site 6, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 6, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 6, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 6, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 6, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 6, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 7, Zone 1, Species_Code A4, Year 2002: -15.021, 3.521, 0; Site 7, Zone 2, Species_Code A4, Year 2002: -17.192, 3.953, 0; Site 7, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 7, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 7, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 7, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 7, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 7, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 8, Zone 1, Species_Code A1, Year 2002: -5.455, 1.604, 0.224; Site 8, Zone 2, Species_Code A1, Year 2002: -5.366, 1.591, 0; Site 8, Zone 1, Species_Code A2, Year 2002: -11.954, 2.804, 0.405; Site 8, Zone 2, Species_Code A3, Year 2002: -6.527, 1.507, 0; Site 8, Zone 3, Species_Code A3, Year 2002: -6.527, 1.507, 0; Site 8, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 8, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 8, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 8, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 8, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 8, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 9, Zone 1, Species_Code A1, Year 2002: -5.455, 1.604, 0.224; Site 9, Zone 2, Species_Code A1, Year 2002: -5.366, 1.591, 0; Site 9, Zone 3, Species_Code A3, Year 2002: -6.527, 1.507, 0; Site 9, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 9, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 9, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 9, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 9, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 9, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 10, Zone 1, Species_Code A1, Year 2002: -6.011, 1.719, 0; Site 10, Zone 2, Species_Code A1, Year 2002: -7.311, 1.988, 0; Site 10, Zone 3, Species_Code A1, Year 2002: -7.311, 1.988, 0; Site 10, Zone 2, Species_Code A2, Year 2002: -11.954, 2.804, 0.405; Site 10, Zone 2, Species_Code A3, Year 2008: -6.078, 1.44, 0; Site 10, Zone 3, Species_Code A3, Year 2008: -6.078, 1.44, 0; Site 10, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 10, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 10, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 10, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 10, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 10, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site NaN, Zone 1, Species_Code A1, Year 2002: -5.455, 1.604, 0.224; Site NaN, Zone 1, Species_Code A2, Year 2002: -11.954, 2.804, 0.405; Site NaN, Zone 1, Species_Code A2, Year 2002: -11.954, 2.804, 0.405; Site NaN, Zone 1, Species_Code A2, Year 2002: -11.954, 2.804, 0.405; Site NaN, Zone 1, Species_Code A4, Year 2002: -15.021, 3.521, 0; Site NaN, Zone 1, Species_Code A4, Year 2002: -15.021, 3.521, 0; Site 8, Zone 1, Species_Code A13, Year 2002: -6.527, 1.507, 0. Plant_Biomass(g) = e^(constant + htslope*ln(Shoot_Height(cm)) + flslope*(Flowering_Status)), based on the following parameter estimates for constant, htslope and flslope from curve fits of allometry data by plot, marsh zone and species, respectively: Site 1, Zone 1, Species_Code A1, Year 2002: -6.83, 1.806, 0.354; Site 1, Zone 2, Species_Code A3, Year 2002: -7.873, 1.731, 0; Site 1, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 1, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 1, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 1, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 1, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 1, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 2, Zone 1, Species_Code A1, Year 2002: -6.325, 1.869, 0; Site 2, Zone 2, Species_Code A1, Year 2002: -8.458, 2.366, -0.455; Site 2, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 2, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 2, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 2, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 2, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 2, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 3, Zone 1, Species_Code A1, Year 2002: -5.669, 1.672, 0; Site 3, Zone 2, Species_Code A1, Year 2002: -7.261, 2.062, -0.36; Site 3, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 3, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 3, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 3, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 3, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 3, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 4, Zone 1, Species_Code A1, Year 2002: -6.583, 1.87, 0; Site 4, Zone 2, Species_Code A1, Year 2002: -6.231, 1.71, 0; Site 4, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 4, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 4, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 4, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 4, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 4, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 5, Zone 1, Species_Code A1, Year 2002: -6.944, 1.938, 0.205; Site 5, Zone 2, Species_Code A1, Year 2002: -7.738, 2.066, 0; Site 5, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 5, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 5, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 5, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 5, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 5, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 6, Zone 1, Species_Code A1, Year 2002: -6.095, 1.76, 0.212; Site 6, Zone 2, Species_Code A1, Year 2002: -6.934, 1.973, 0; Site 6, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 6, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 6, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 6, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 6, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 6, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 7, Zone 1, Species_Code A4, Year 2002: -15.021, 3.521, 0; Site 7, Zone 2, Species_Code A4, Year 2002: -17.192, 3.953, 0; Site 7, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 7, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 7, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 7, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 7, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 7, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 8, Zone 1, Species_Code A1, Year 2002: -5.455, 1.604, 0.224; Site 8, Zone 2, Species_Code A1, Year 2002: -5.366, 1.591, 0; Site 8, Zone 1, Species_Code A2, Year 2002: -11.954, 2.804, 0.405; Site 8, Zone 2, Species_Code A3, Year 2002: -6.527, 1.507, 0; Site 8, Zone 3, Species_Code A3, Year 2002: -6.527, 1.507, 0; Site 8, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 8, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 8, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 8, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 8, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 8, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 9, Zone 1, Species_Code A1, Year 2002: -5.455, 1.604, 0.224; Site 9, Zone 2, Species_Code A1, Year 2002: -5.366, 1.591, 0; Site 9, Zone 3, Species_Code A3, Year 2002: -6.527, 1.507, 0; Site 9, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 9, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 9, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 9, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 9, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 9, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 10, Zone 1, Species_Code A1, Year 2002: -6.011, 1.719, 0; Site 10, Zone 2, Species_Code A1, Year 2002: -7.311, 1.988, 0; Site 10, Zone 3, Species_Code A1, Year 2002: -7.311, 1.988, 0; Site 10, Zone 2, Species_Code A2, Year 2002: -11.954, 2.804, 0.405; Site 10, Zone 2, Species_Code A3, Year 2008: -6.078, 1.44, 0; Site 10, Zone 3, Species_Code A3, Year 2008: -6.078, 1.44, 0; Site 10, Zone 1, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 10, Zone 2, Species_Code A5, Year 2007: -6.955, 1.495, 0; Site 10, Zone 1, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 10, Zone 2, Species_Code A6, Year 2007: -9.458, 2.153, 0; Site 10, Zone 1, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site 10, Zone 2, Species_Code A7, Year 2007: -14.315, 3.397, 0.347; Site NaN, Zone 1, Species_Code A1, Year 2002: -5.455, 1.604, 0.224; Site NaN, Zone 1, Species_Code A2, Year 2002: -11.954, 2.804, 0.405; Site NaN, Zone 1, Species_Code A2, Year 2002: -11.954, 2.804, 0.405; Site NaN, Zone 1, Species_Code A2, Year 2002: -11.954, 2.804, 0.405; Site NaN, Zone 1, Species_Code A4, Year 2002: -15.021, 3.521, 0; Site NaN, Zone 1, Species_Code A4, Year 2002: -15.021, 3.521, 0; Site 8, Zone 1, Species_Code A13, Year 2002: -6.527, 1.507, 0. 9. Processing History: Software version: GCE Data Toolbox Version 3.9.9b (06-Mar-2019) Data structure version: GCE Data Structure 1.1 (29-Mar-2001) Original data file processed: rapid_plants.txt (6455 records) Data processing history: 05-Feb-2020: new GCE Data Structure 1.1 created ('newstruct') 05-Feb-2020: 6455 rows imported from ASCII data file 'rapid_plants.txt' ('imp_ascii') 05-Feb-2020: 12 metadata fields in file header parsed ('parse_header') 05-Feb-2020: data structure validated ('gce_valid') 05-Feb-2020: Q/C flagging criteria applied, 'flags' field updated ('dataflag') 05-Feb-2020: automatically assigned study date metadata descriptors based on the range of date values in date/time columns (add_studydates) 05-Feb-2020: edited structure data ('ui_datagrid'): changed 'Flowering_Status' row 3182 from 0 to NaN 05-Feb-2020: Q/C flagging criteria applied, 'flags' field updated ('dataflag') 06-Feb-2020: edited structure data ('ui_datagrid'): changed 'Shoot_Height' row 450 from 1701 to 170, changed 'Shoot_Height' row 1578 from 1600 to 160, changed 'Flowering_Status' row 4212 from NaN to 0, changed 'Flowering_Status' row 4213 from NaN to 0, changed 'Flowering_Status' row 4214 from NaN to 0 06-Feb-2020: Q/C flagging criteria applied, 'flags' field updated ('dataflag') 06-Feb-2020: manually edited data set metadata ('ui_editmetadata') 06-Feb-2020: Added a calculated plant biomass column using curve fit coefficents from allometric analyses relating plant height to mass determined for each Site, Zone and Species ('plant_biomass') 06-Feb-2020: Q/C flagging criteria applied for column(s) Plant_Biomass, 'flags' field updated ('dataflag') 06-Feb-2020: replaced values of 'GCE_7' in column(s) Site with 'GCE7', performing a full case-sensitive match ('string_replace') 06-Feb-2020: 1059 values in 'Site' were updated with new values ('update_data') 06-Feb-2020: Q/C flagging criteria applied for column(s) Site, 'flags' field updated ('dataflag') 06-Feb-2020: replaced values of 'GCE_8' in column(s) Site with 'GCE8', performing a full case-sensitive match ('string_replace') 06-Feb-2020: 2173 values in 'Site' were updated with new values ('update_data') 06-Feb-2020: Q/C flagging criteria applied for column(s) Site, 'flags' field updated ('dataflag') 06-Feb-2020: replaced values of 'GCE_9' in column(s) Site with 'GCE9', performing a full case-sensitive match ('string_replace') 06-Feb-2020: 2233 values in 'Site' were updated with new values ('update_data') 06-Feb-2020: Q/C flagging criteria applied for column(s) Site, 'flags' field updated ('dataflag') 06-Feb-2020: manually edited data set metadata ('ui_editmetadata') 06-Feb-2020: Q/C Criteria of column Site changed from 'flag_notinlist(x,'ZSC1,ZSC2,SCSA,GCE_7,GCE_8,GCE_9')='Q'' to 'flag_notinlist(x,'ZSC1,ZSC2,SCSA,GCE7,GCE8,GCE9')='Q'';deleted column Plant_Biomass from data structure ('ui_editor') 06-Feb-2020: Q/C flagging criteria applied for column(s) Site, 'flags' field updated ('dataflag') 06-Feb-2020: Added a calculated plant biomass column using curve fit coefficents from allometric analyses relating plant height to mass determined for each Site, Zone and Species ('plant_biomass') 06-Feb-2020: Q/C flagging criteria applied for column(s) Plant_Biomass, 'flags' field updated ('dataflag') 06-Feb-2020: Description of column Plant_Biomass edited ('ui_editor') 06-Feb-2020: updated 1 metadata fields in the Dataset sections ('addmeta') 06-Feb-2020: imported Dataset, Project, Site, Study, Status, Supplement metadata descriptors from the GCE Metabase ('imp_gcemetadata') 06-Feb-2020: updated 57 metadata fields in the Dataset, Project, Site, Status, Study, Supplement sections ('addmeta') 06-Feb-2020: updated 6 metadata fields in the Data sections ('addmeta') 06-Feb-2020: updated 15 metadata fields in the Status, Data sections to reflect attribute metadata ('updatecols') 06-Feb-2020: parsed and formatted metadata ('listmeta') B. Variable Information 1. Variable Name: column 1. Year column 2. Month column 3. Day column 4. Site column 5. Zone column 6. Plot column 7. Quadrat_Area column 8. Species_Code column 9. Shoot_Height column 10. Flowering_Status column 11. Plot_Disturbance column 12. Plant_Biomass 2. Variable Definition: column 1. Year of observation column 2. Month of observation column 3. Day of observation column 4. GCE LTER sampling site column 5. Nominal marsh zone column 6. Permanent plot number column 7. Areal measurement of the quadrat frame column 8. Plant species code column 9. Height of the plant shoot above the substrate column 10. Presence or absence of inflorescence column 11. Presence or absence of visible plot disturbance column 12. Plant biomass calculated from shoot height and flowering status, based on curve fits of allometric data collected for each site, marsh zone and species. NOTE: These are based on relationships measured in the fall and may not be valid at other seasons. 3. Units of Measurement: column 1. YYYY column 2. M column 3. D column 4. none column 5. none column 6. none column 7. m^2 column 8. none column 9. cm column 10. none column 11. none column 12. g 4. Data Type a. Storage Type: column 1. integer column 2. integer column 3. integer column 4. string column 5. integer column 6. integer column 7. floating-point column 8. string column 9. floating-point column 10. integer column 11. integer column 12. floating-point b. Variable Codes: Site: ZSC1 = ZSC1 Altamaha Plant Transition Site, ZSC2 = ZSC2 Altamaha Plant Transition Site, SCSA = SCSA Altamaha Plant Transition Site, GCE7 = GCE7 (Carrs Island), GCE8 = GCE8 (Alligator Creek), GCE9 = GCE9 (Rockdedundy Island) Zone: 1 = creek bank zone, 2 = mid-marsh zone, 3 = additional Juncus zone in high marsh, -1 = old creek bank zone prior to plot relocation Species_Code:A1 = Spartina alterniflora, A2 = Spartina cynosuroides, A3 = Juncus Roemerianus, A4 = Zizaniopsis miliacea, A5 = Scirpus spp., A6 = Panicum spp., A7 = Typha spp., A8 = Unidentified rush, A9 = Schoenoplectus tabernaemontani, A10 = Cladium jamaicense, A11 = Schoenoplectus tabernaemontani, A13 = Juncus effusus Flowering_Status: 1 = flowering, 0 = not flowering, missing = not scoredPlot_Disturbance:0 = Normal, 1 = Disturbed c. Numeric Range: column 1. 2017 to 2018 column 2. 1 to 10 column 3. 6 to 30 column 4. (none) column 5. 1 to 3 column 6. 1 to 55 column 7. 0.0625 to 0.5 column 8. (none) column 9. 7 to 350 column 10. 0 to 1 column 11. 0 to 1 column 12. 0.0041446 to 245.3578 d. Missing Value Code: 5. Data Format a. Column Type: column 1. numerical column 2. numerical column 3. numerical column 4. text column 5. numerical column 6. numerical column 7. numerical column 8. text column 9. numerical column 10. numerical column 11. numerical column 12. numerical b. Number of Columns: 12 c. Decimal Places: column 1. 0 column 2. 0 column 3. 0 column 4. 0 column 5. 0 column 6. 0 column 7. 4 column 8. 0 column 9. 0 column 10. 0 column 11. 0 column 12. 3 6. Logical Variable Type: column 1. datetime (discrete) column 2. datetime (discrete) column 3. datetime (discrete) column 4. coded value (none) column 5. coded value (discrete) column 6. nominal (discrete) column 7. calculation (continuous) column 8. coded value (none) column 9. data (continuous) column 10. logical (discrete) column 11. logical (discrete) column 12. calculation (continuous) 7. Flagging Criteria: column 1. x>2018="Q";x<2017="Q" column 2. x<1="I";x>12="I" column 3. x<1="I";x>31="I" column 4. flag_notinlist(x,"ZSC1,ZSC2,SCSA,GCE7,GCE8,GCE9")="Q" column 5. ~inarray([-1,1,2,3])="I" column 6. x<1="I";x>100="Q" column 7. x<.06="Q";x>.5="Q" column 8. flag_notinlist(x,"A1,A2,A3,A4,A5,A6,A7,A8,A9,A10,A11,A13")="Q" column 9. x<0="I";x>400="Q" column 10. x<0="I";x>1="I";strcmp(col_Species_Code,"A3")&~isnull(col_Flowering_Status)="Q";inlist(c ol_Species_Code,"A1,A2")&~isnull(col_Shoot_Height)&isnull(col_Flowering_Status)="Q" column 11. x<0="I";x>1="I" column 12. x<=0="I" C. Data Anomalies: Biomass could not be calculated for plants in the following plots because Shoot_Height was not measured or allometric relationships between plant height, flowering status and mass have not been determined for that species in the respective Site and Zone: Site GCE_7, Zone 1, Plot 1: 51 plants (100.0%); Site GCE_7, Zone 1, Plot 4: 52 plants (100.0%); Site GCE_7, Zone 1, Plot 5: 56 plants (100.0%); Site GCE_7, Zone 1, Plot 7: 36 plants (100.0%); Site GCE_7, Zone 1, Plot 8: 57 plants (100.0%); Site GCE_7, Zone 1, Plot 12: 63 plants (100.0%); Site GCE_7, Zone 1, Plot 13: 72 plants (100.0%); Site GCE_7, Zone 1, Plot 16: 60 plants (100.0%); Site GCE_7, Zone 2, Plot 1: 71 plants (100.0%); Site GCE_7, Zone 2, Plot 2: 76 plants (100.0%); Site GCE_7, Zone 2, Plot 3: 82 plants (100.0%); Site GCE_7, Zone 2, Plot 4: 88 plants (100.0%); Site GCE_7, Zone 2, Plot 5: 62 plants (100.0%); Site GCE_7, Zone 2, Plot 6: 87 plants (100.0%); Site GCE_7, Zone 2, Plot 7: 72 plants (100.0%); Site GCE_7, Zone 2, Plot 8: 74 plants (100.0%); Site GCE_8, Zone 1, Plot 3: 31 plants (100.0%); Site GCE_8, Zone 1, Plot 13: 51 plants (100.0%); Site GCE_8, Zone 1, Plot 22: 240 plants (100.0%); Site GCE_8, Zone 1, Plot 24: 122 plants (100.0%); Site GCE_8, Zone 1, Plot 31: 132 plants (100.0%); Site GCE_8, Zone 1, Plot 33: 21 plants (100.0%); Site GCE_8, Zone 1, Plot 36: 133 plants (100.0%); Site GCE_8, Zone 1, Plot 37: 39 plants (100.0%); Site GCE_8, Zone 1, Plot 45: 131 plants (100.0%); Site GCE_8, Zone 1, Plot 47: 275 plants (100.0%); Site GCE_8, Zone 1, Plot 48: 181 plants (100.0%); Site GCE_8, Zone 1, Plot 55: 35 plants (100.0%); Site GCE_8, Zone 2, Plot 4: 79 plants (100.0%); Site GCE_8, Zone 2, Plot 5: 99 plants (100.0%); Site GCE_8, Zone 2, Plot 6: 89 plants (100.0%); Site GCE_8, Zone 2, Plot 7: 86 plants (100.0%); Site GCE_8, Zone 2, Plot 8: 27 plants (100.0%); Site GCE_8, Zone 2, Plot 11: 43 plants (100.0%); Site GCE_8, Zone 2, Plot 12: 133 plants (100.0%); Site GCE_8, Zone 2, Plot 18: 80 plants (100.0%); Site GCE_8, Zone 2, Plot 23: 146 plants (100.0%); Site GCE_9, Zone 1, Plot 12: 1 plant (100.0%); Site GCE_9, Zone 1, Plot 15: 1 plant (100.0%); Site GCE_9, Zone 1, Plot 17: 92 plants (100.0%); Site GCE_9, Zone 1, Plot 18: 79 plants (100.0%); Site GCE_9, Zone 1, Plot 22: 80 plants (100.0%); Site GCE_9, Zone 1, Plot 25: 42 plants (100.0%); Site GCE_9, Zone 1, Plot 26: 10 plants (100.0%); Site GCE_9, Zone 1, Plot 28: 20 plants (100.0%); Site GCE_9, Zone 1, Plot 31: 129 plants (100.0%); Site GCE_9, Zone 1, Plot 34: 55 plants (100.0%); Site GCE_9, Zone 1, Plot 36: 58 plants (100.0%); Site GCE_9, Zone 1, Plot 43: 1 plant (100.0%); Site GCE_9, Zone 1, Plot 53: 47 plants (100.0%); Site GCE_9, Zone 2, Plot 1: 89 plants (100.0%); Site GCE_9, Zone 2, Plot 2: 100 plants (100.0%); Site GCE_9, Zone 2, Plot 3: 67 plants (100.0%); Site GCE_9, Zone 2, Plot 4: 64 plants (100.0%); Site GCE_9, Zone 2, Plot 5: 51 plants (100.0%); Site GCE_9, Zone 2, Plot 6: 64 plants (100.0%); Site GCE_9, Zone 2, Plot 7: 64 plants (100.0%); Site GCE_9, Zone 2, Plot 8: 51 plants (100.0%); Site GCE_9, Zone 3, Plot 1: 148 plants (100.0%); Site GCE_9, Zone 3, Plot 2: 128 plants (100.0%); Site GCE_9, Zone 3, Plot 3: 147 plants (100.0%); Site GCE_9, Zone 3, Plot 4: 104 plants (100.0%); Site GCE_9, Zone 3, Plot 5: 131 plants (100.0%); Site GCE_9, Zone 3, Plot 6: 120 plants (100.0%); Site GCE_9, Zone 3, Plot 7: 140 plants (100.0%); Site GCE_9, Zone 3, Plot 8: 150 plants (100.0%); Site SCSA, Zone 1, Plot 12: 9 plants (20.5%); Site SCSA, Zone 1, Plot 18: 1 plant (1.6%); Site SCSA, Zone 1, Plot 26: 22 plants (28.9%); Site SCSA, Zone 1, Plot 31: 1 plant (2.1%); Site ZSC1, Zone 1, Plot 6: 32 plants (52.5%). Biomass could not be calculated for plants in the following plots because Shoot_Height was not measured or allometric relationships between plant height, flowering status and mass have not been determined for that species in the respective Site and Zone: Site GCE8, Zone 1, Plot 3: 2 plants (6.5%); Site GCE8, Zone 1, Plot 33: 4 plants (19.0%); Site GCE9, Zone 1, Plot 12: 1 plant (100.0%); Site GCE9, Zone 1, Plot 15: 1 plant (100.0%); Site GCE9, Zone 1, Plot 18: 1 plant (1.3%); Site GCE9, Zone 1, Plot 22: 1 plant (1.3%); Site GCE9, Zone 1, Plot 25: 1 plant (2.4%); Site GCE9, Zone 1, Plot 34: 1 plant (1.8%); Site GCE9, Zone 1, Plot 36: 1 plant (1.7%); Site GCE9, Zone 1, Plot 43: 1 plant (100.0%); Site GCE9, Zone 1, Plot 53: 1 plant (2.1%); Site SCSA, Zone 1, Plot 12: 9 plants (20.5%); Site SCSA, Zone 1, Plot 18: 1 plant (1.6%); Site SCSA, Zone 1, Plot 26: 22 plants (28.9%); Site SCSA, Zone 1, Plot 31: 1 plant (2.1%); Site ZSC1, Zone 1, Plot 6: 32 plants (52.5%). V. Supplemental Descriptors A. Data Acquisition 1. Data Forms: 2. Form Location: 3. Data Entry Validation: B. Quality Assurance/Quality Control Procedures: C. Supplemental Materials: D. Computer Programs: E. Archival Practices: F. Publications: not specified G. History of Data Set Usage 1. Data Request History: not specified 2. Data Set Update History: none 3. Review History: none 4. Questions and Comments from Users: none