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GCE-LTER Data Set Summary
Accession:
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PLT-GCEM-2011a
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Research Theme:
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Population Ecology (Monitoring)
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Contributors:
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Steven C. Pennings, Emilie Clavette, Andy Penniman
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Title:
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Fall 2020 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 2020 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.
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DOI:
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10.6073/pasta/2bd5214098d104e7e9781d3e55c553e4
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Key Words:
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flowering, marshes, monitoring, Panicum, permanent plots, plant communities, plant cover, plant ecology, plant growth, 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, Population Ecology |
Study Period:
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08-Oct-2020 to 16-Oct-2020
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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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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:
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PLT-GCEM-1801 (Disturbance to permanent monitoring plots data set),
PLT-GCEM-2011b (Biomass calculations based on this survey)
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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.
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Downloads:
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Data Table: PLT-GCEM-2011a (Main data table for data set PLT-GCEM-2011a, 3291 records)
Access: Public (released 11-Feb-2022)
Metadata: Text (ESA FLED),
XML (Ecological Metadata Language)
Data Formats: Spreadsheet (CSV) [373.03kb], Text File [330.01kb], MATLAB (GCE Toolbox) [100.86kb], MATLAB (Variables) [103.91kb], Text Report [447.33kb]
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 |
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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. 2021. Fall 2020 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/2bd5214098d104e7e9781d3e55c553e4
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