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GCE-LTER Data Set Summary

Accession: PLT-GCEM-2211a Research Theme: Population Ecology (Monitoring)
Contributors: Steven C. Pennings, Jacob Shalack, John Williams, Laura Hollander
Title: Fall 2022 plant monitoring survey -- shoot height and flowering status of plants in permanent plots at GCE sampling sites 1-10
Abstract: A quadrat survey was conducted in October 2022 to measure the species and size distribution of plants at 10 GCE LTER sampling sites. The quadrats were established as permanent plots at GCE sampling sites in October 2000 by placing wooden stakes at random locations across two nominal zones at each site, designated based on marsh structure (creekbank and high marsh). New plots were added each year as necessary to replace those lost due to catastrophic wrack disturbance or creek bank erosion. 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 (PLT-GCEM-1801). This survey will be repeated annually to assess changes in plant distribution and biomass in relation to environmental changes documented by other GCE LTER monitoring efforts.
DOI: 10.6073/pasta/d6f7d7f8f2b752dd3a41ba55e8a89c25
Key Words: flowering, marshes, monitoring, Panicum, permanent plots, plant communities, plant cover, plant ecology, plant growth, Plant Monitoring, plants, primary productivity, Scirpus, shoot height, Typha
LTER Core Area: Primary Production
Research Themes: GCE2 Q2 - Domain Patterns, GCE3 Area2 - Patterns within the Domain, Population Ecology
Study Period: 11-Oct-2022 to 19-Oct-2022
Study Sites:
GCE1 -- Eulonia, Georgia, USA
GCE2 -- Four Mile Island, Georgia, USA
GCE3 -- North Sapelo, Sapelo Island, Georgia, USA
GCE4 -- Meridian, Georgia, USA
GCE5 -- Folly River, Georgia, USA
GCE6 -- Dean Creek, Sapelo Island, Georgia, USA
GCE7 -- Carrs Island, Georgia, USA
GCE8 -- Alligator Creek, Georgia, USA
GCE9 -- Rockdedundy Island, Georgia, USA
GCE10 -- Hunt Camp, Sapelo Island, Georgia, USA
» Download Geographic Coverage: Google Earth
Species References: Cladium jamaicense, Juncus effusus, Juncus roemerianus, Panicum spp, Scirpus americanus, Scirpus olneyi, Scirpus robustus, Scirpus validus, Spartina alterniflora, Spartina cynosuroides, Typha angustifolia, Zizaniopsis miliacea
Data References: PLT-GCEM-1801 (Disturbance to permanent monitoring plot data set), PLT-GCEM-2211b (Biomass calculations based on this survey)
Project References: End of year biomass
Downloads: Information

Data Table: PLT-GCEM-2211a (Main data table for data set PLT-GCEM-2211a, 3218 records)

Access: Public (released 20-Feb-2024)

Metadata: Text (ESA FLED), XML (Ecological Metadata Language)

Data Formats: Spreadsheet (CSV) [368.80kb],  Text File [326.41kb],  MATLAB (GCE Toolbox) [100.74kb],  MATLAB (Variables) [104.13kb],  Text Report [442.83kb]

Column List:(hide)

Column Name Units Type Description
1 Year YYYY integer Year of observation
2 Month M integer Month of observation
3 Day D integer Day of observation
4 Site none integer GCE LTER sampling site number
5 Site_Name none string GCE LTER sampling site name
6 Zone none integer Nominal marsh zone
7 Plot none integer Permanent plot number
8 Location none string Geographic location code in the GCE Metadata Database for the sampling plot
9 Flag_Location none string QA/QC flags for Geographic location code in the GCE Metadata Database for the sampling plot (flagging criteria, where "x" is Location: manual)
10 Location_Notes none string Notes on location assignments and geographic accuracy
11 Longitude degrees floating-point Geographic longitude in decimal degrees
12 Flag_Longitude none string QA/QC flags for Geographic longitude in decimal degrees (flagging criteria, where "x" is Longitude: x<-180="I", x>180="I", manual)
13 Latitude degrees floating-point Geographic latitude in decimal degrees
14 Flag_Latitude none string QA/QC flags for Geographic latitude in decimal degrees (flagging criteria, where "x" is Latitude: x<-90="I", x>90="I", manual)
15 Quadrat_Area m^2 floating-point Areal measurement of the quadrat frame
16 Species_Code none string Plant species code
17 Shoot_Height cm floating-point Height of the plant shoot above the substrate
18 Flowering_Status none integer Presence or absence of inflorescence
Statistics: Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS
Citation: Pennings, Steven C. 2023. Fall 2022 plant monitoring survey -- shoot height and flowering status of plants in permanent plots at GCE sampling sites 1-10. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/d6f7d7f8f2b752dd3a41ba55e8a89c25

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This material is based upon work supported by the National Science Foundation under grants OCE-9982133, OCE-0620959, OCE-1237140 and OCE-1832178. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.