Georgia Coastal Ecosystems LTER Data Set Details

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GCE-LTER Data Set Summary

Accession:

INS-GCES-1608

Research Theme:

Terrestrial Insect Ecology (Synthesis)

Contributors:

Steven C. Pennings, Wade Sheldon

Title:

Long-term mid-marsh grasshopper abundance and species diversity at eight GCE-LTER sampling sites

Abstract:

Grasshopper abundance and species diversity were investigated at eight sampling sites within the Georgia Coastal Ecosystems (GCE) LTER study area during July or August from 2000 to 2021. Visual surveys were conducted along 8-10 2m by 10m transects randomly allocated within the mid-marsh zone at each site. All grasshoppers observed within each transect were counted and identified to species, if possible. These surveys were conducted as part of the GCE invertebrate monitoring program, and are performed annually to assess long-term changes in relative species abundances across the GCE study area.

DOI:

10.6073/pasta/98935e708c62ecd45cb82cc2f4f97d2a

Key Words:

abundance, grasshoppers, insects, Long-term Data, marshes, permanent plots, population dynamics, Signature Data, species diversity, terrestrial, Terrestrial Insect Monitoring

LTER Core Area:

Population Studies

Research Themes:

GCE2 Q2 - Domain Patterns, GCE2 Q5 - Organism Distribution, GCE3 Area2 - Patterns within the Domain, Terrestrial Insect Ecology, Population Ecology

Study Period:

16-Aug-2000 to 17-Aug-2020

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
GCE9 -- Rockdedundy Island, Georgia, USA
GCE10 -- Hunt Camp, Sapelo Island, Georgia, USA

» Download Geographic Coverage: Google Earth

Species References:

Mermiria intertexta, Orchelimum concinnum, Orchelimum erythrocephalum, Orchelimum fidicinium, Orphulella pelidna, Paroxya clavuliger, Romalea guttata, Schistocerca obscura

Data References:

INS-GCEM-0011 (Primary data set for 2000), INS-GCEM-0108 (Primary data set for 2001), INS-GCEM-0208 (Primary data set for 2002), INS-GCEM-0310 (Primary data set for 2003), INS-GCEM-0409 (Primary data set for 2004), INS-GCEM-0511 (Primary data set for 2005), INS-GCEM-0608 (Primary data set for 2006), INS-GCEM-0802 (Primary data set for 2007), INS-GCEM-0808 (Primary data set for 2008), INS-GCEM-0912 (Primary data set for 2009), INS-GCEM-1010 (Primary data set for 2010), INS-GCEM-1112 (Primary data set for 2011), INS-GCEM-1208 (Primary data set for 2012), INS-GCEM-1309 (Primary data set for 2013), INS-GCEM-1512a (Primary data set for 2014), INS-GCEM-1512b (Primary data set for 2015), INS-GCEM-1608 (Primary data set for 2016), INS-GCEM-1708 (Primary data set for 2017), INS-GCEM-1808 (Primary data set for 2018), INS-GCEM-1908 (Primary data set for 2019), INS-GCEM-2008 (Primary data set for 2020), INS-GCEM-2108 (Primary data set for 2021)

Project References:

Grasshopper distribution within the GCE, Terrestrial invertebrate monitoring

Publications:

Adams, T. and Pennings, S.C. Poster: Long-term saltmarsh katydid (Orchelimum fidiciinium) dynamics on Sapelo Island. 103rd Annual meeting of the Ecological Society of America, August 5-10, 2018, New Orleans.

van Klink, R., Bowler, D.E., Gongalsky, K.B., Swengel, A.B., Gentile, A. and Chase, J.M. 2020. Meta-analysis reveals declines in terrestrial but increases in freshwater insect abundances. Science. 368:417-420. (DOI: 10.1126/science.aax9931)

Adams, T., Vu, H. and Pennings, S.C. 2022. Variation in Densities of the Salt Marsh Katydid Orchelimum fidicinium over Space and Time. Estuaries and Coasts. 45:260-271. (DOI: https://doi.org/10.1007/s12237-021-00953-y)

van Klink, R., Bowler, D.E., Gongalsky, K.B., Shen, M., Swengel, S.R. and Chase, J.M. 2023. Disproportionate declines of formerly abundant species underlie insect loss. Nature. 628:359-364. (DOI: 10.1038/s41586-023-06861-4)

Downloads:

Data Table: INS-GCES-1608-Aggregated (Summary data set aggregated by Site and Species, 1195 records)

Access: Public (released 17-Aug-2017)

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

Data Formats: Spreadsheet (CSV) [78.68kb], Text File [73.44kb], MATLAB (GCE Toolbox) [43.18kb], MATLAB (Variables) [62.10kb], Text Report [152.71kb]

Column List:(display)

Column	Name	Units	Type	Description
1	Site	none	integer	GCE Sampling Site
2	Species_Code	none	string	Coded species name
3	Species	none	string	Species or taxonomic group name
4	Date	YYYY-MM-DD	string	Calendar date
5	Year	YYYY	integer	Calendar year of the observation
6	Month	M	integer	Calendar month of the observation
7	Day	D	integer	Calendar day of the observation
8	Flagged_Count	count	integer	Number of QC/QA-flagged observations of Number of individuals observed
9	Percent_Flagged_Count	%	floating-point	Percent QC/QA-flagged observations of Number of individuals observed
10	Num_Count	count	integer	Observations of Number of individuals observed
11	Min_Count	count	integer	Minimum Number of individuals observed
12	Max_Count	count	integer	Maximum Number of individuals observed
13	Total_Count	count	integer	Total Number of individuals observed
14	Median_Count	count	integer	Median Number of individuals observed

Data Table: INS-GCES-1608-Observations (Primary observation data from transect surveys, 9854 records)

Access: Public (released 17-Aug-2017)

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

Data Formats: Spreadsheet (CSV) [545.09kb], Text File [486.89kb], MATLAB (GCE Toolbox) [94.08kb], MATLAB (Variables) [95.69kb], Text Report [607.10kb]

Column List:(display)

Statistics:

Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS

Citation:

Pennings, Steven C. 2016. Long-term mid-marsh grasshopper abundance and species diversity at eight GCE-LTER sampling sites. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/98935e708c62ecd45cb82cc2f4f97d2a

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