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GCE-LTER Data Set Summary
Accession:
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PLT-GCEM-0501a
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Research Theme:
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Plant Ecology (Monitoring)
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Contributors:
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Steven C. Pennings, Caroline McFarlin, Elizabeth Wason, Amy Kunza Vargas, Ken Helm
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Title:
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Fall 2004 plant monitoring survey -- shoot height and flowering status of plants in permanent plots at GCE sampling sites 1-10
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Abstract:
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A quadrat survey was conducted in October 2004 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). Several new plots were also added in October 2001, 2002, 2003 and 2004 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 the data set. 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.
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DOI:
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10.6073/pasta/525a5caa4605265a1501d0e3b4328e78
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Key Words:
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flowering, marshes, monitoring, Panicum, permanent plots, plant communities, plant cover, plant ecology, Plant Monitoring, plants, primary productivity, Scirpus, shoot height, Typha
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LTER Core Area:
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Primary Production
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Research Themes:
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GCE2 Q2 - Domain Patterns, GCE3 Area2 - Patterns within the Domain, Plant Ecology, Botany |
Study Period:
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22-Oct-2004 to 25-Oct-2004
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Study Sites:
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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
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Species References:
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Juncus roemerianus,
Panicum spp,
Scirpus americanus,
Scirpus olneyi,
Scirpus robustus,
Scirpus validus,
Spartina alterniflora,
Spartina cynosuroides,
Typha angustifolia,
Zizaniopsis miliacea |
Data References:
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PLT-GCEM-0501b (Corresponding biomass calculations)
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Project References:
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End of year biomass |
Publications:
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Jiang, R., Liu, W. and Pennings, S.C. (in review). Global warming disrupts the trade-off between sexual and clonal reproduction in a salt marsh plant Spartina alterniflora.
Liu, W. and Pennings, S.C. Presentation: Allometric variation of the salt marsh grass Spartina alterniflora across space and time. 103rd Annual meeting of the Ecological Society of America, August 5-10, 2018, New Orleans.
Pennings, S.C. Presentation: Effects of Hurricanes Matthew and Irma on coastal wetlands in Georgia. 103rd Annual meeting of the Ecological Society of America, August 5-10, 2018, New Orleans.
Li, S. and Pennings, S.C. 2016. Disturbance in Georgia salt marshes: variation across space and time. Ecosphere. 7(10):e01487. (DOI: 10.1002/ecs2.1487)
Liu, W. and Pennings, S.C. 2019. Self-thinning and size-dependent flowering of the grass Spartina alterniflora across space and time. Functional Ecology. 33:1830-1841. (DOI: 10.1111/1365-2435.13384)
Liu, W. and Pennings, S.C. 2021. Variation in synchrony of production among species, sites and intertidal zones in coastal marshes. Ecology. (DOI: 10.1002/ECY.3278)
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Downloads:
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Data Table: PLT-GCEM-0501a (Main data table for data set PLT-GCEM-0501a, 2788 records)
Access: Public (released 10-Jan-2006)
Metadata: Text (ESA FLED),
XML (Ecological Metadata Language)
Data Formats: Spreadsheet (CSV) [293.77kb], Text File [245.90kb], MATLAB (GCE Toolbox) [1656.20kb], MATLAB (Variables) [1275.27kb], Text Report [350.07kb]
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 |
5 |
Zone |
none |
integer |
Nominal marsh zone |
6 |
Plot |
none |
integer |
Permanent plot number |
7 |
Location |
none |
string |
Geographic location code in the GCE Metadata Database for the sampling plot |
8 |
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) |
9 |
Location_Notes |
none |
string |
Notes on location assignments and geographic accuracy |
10 |
Longitude |
degrees |
floating-point |
Geographic longitude in decimal degrees |
11 |
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) |
12 |
Latitude |
degrees |
floating-point |
Geographic latitude in decimal degrees |
13 |
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) |
14 |
Quadrat_Area |
m^2 |
floating-point |
Areal measurement of the quadrat frame |
15 |
Flag_Quadrat_Area |
none |
string |
QA/QC flags for Areal measurement of the quadrat frame (flagging criteria, where "x" is Quadrat_Area: x<0.06="Q", x>0.5="Q") |
16 |
Species_Code |
none |
string |
Plant species code |
17 |
Shoot_Height |
cm |
floating-point |
Height of the plant shoot above the substrate |
18 |
Flag_Shoot_Height |
none |
string |
QA/QC flags for Height of the plant shoot above the substrate (flagging criteria, where "x" is Shoot_Height: x<0="I", x>400="Q") |
19 |
Flowering_Status |
none |
integer |
Presence or absence of inflorescence |
20 |
Plot_Disturbance |
none |
integer |
Presence or absence of visible plot disturbance |
21 |
Flag_Plot_Disturbance |
none |
string |
QA/QC flags for Presence or absence of visible plot disturbance (flagging criteria, where "x" is Plot_Disturbance: x<0="I", x>1="I", manual) |
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Statistics:
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Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS |
Citation:
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Pennings, Steven C. 2005. Fall 2004 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/525a5caa4605265a1501d0e3b4328e78
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