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GCE-LTER Data Set Summary

Accession: INV-GCEM-1704a Research Theme: Aquatic Invertebrate Ecology (Monitoring)
Contributors: Brian R. Silliman, Christine Angelini, Sean Sharp, Joe Morton, Kimberly Prince, Sinead Crotty
Title: Survey of adult and juvenile periwinkle snail (Littoraria irrorata) density in mid-marsh and creekbank plots at GCE LTER study sites in October 2016.
Abstract: To characterize spatial variation in the adult and juvenile density of periwinkle snails, Littoraria irrorata, within two zones in the salt marsh, the mid-marsh and creekbank, and across a gradient in salinity and distance to ocean, we surveyed snail density in October 2016. In each marsh zone at each GCE LTER permanent monitoring site, we counted the number of adult and juvenile snails in replicate quadrats (8 in creekbank and 12 in mid-marsh zones).
DOI: (not assigned)
Key Words: Animalia, Aquatic Invertebrate Monitoring, Bilateria, distribution, Gastropoda, GCE, Georgia, Georgia Coastal Ecosystems, invertebrates, Littoraria, littoraria irrorata, Littorinidae, Lophozoa, LTER, marshes, Mollusca, mollusks, Neotaenioglossa, periwinkle, population dynamics, Protostomia, recruitment, Sapelo Island, snails, USA
LTER Core Area: Population Studies
Research Themes: Aquatic Invertebrate Ecology
Study Period: 13-Oct-2016 to 28-Oct-2016
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
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Data Table: INV-GCEM-1704a (Main data table for data set INV-GCEM-1704a, 200 records)

Access: GCE Members only (public release on 24-Jan-2020)

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

Data Formats: Spreadsheet (CSV) [8.40kb],  Text File [7.46kb],  MATLAB (GCE Toolbox) [46.46kb],  MATLAB (Variables) [69.81kb],  Text Report [94.57kb]

Column List:(hide)

Column Name Units Type Description
1 Year YYYY integer Calendar year of observation
2 Month MM integer Calendar month of observation
3 Day DD integer Calendar day of observation
4 Site none string GCE-LTER sampling site number
5 Zone none integer Creekbank or Mid-marsh
6 Quadrat_Number none integer Quadrat number haphazardly placed in line with permanent vegetation plots
7 Adult_Snails_Count none integer Number of adult snails observed in plot
8 Quadrat_​Area_​Adult_​Snail_​Count m^2 floating-point Area of quadrat used for adult snail count
9 Juvenile_Snails_Count none integer Number of juvenile snails observed in leaf furls in plot
10 Quadrat_​Area_​Juvenile_​Snail_​Count m^2 floating-point Area of quadrat used for juvenile snail count
Citation: Silliman, Brian R. 2019. Survey of adult and juvenile periwinkle snail (Littoraria irrorata) density in mid-marsh and creekbank plots at GCE LTER study sites in October 2016. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://gce-lter.marsci.uga.edu/data/INV-GCEM-1704a

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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.