Biologist
Wetland and Aquatic Research Center
Email:
mdenton@usgs.gov
Office Phone:
352-264-3511
ORCID:
0000-0002-1024-3722
Location
WARC - GVL - South Modular
7920 NW 71St Street
Gainesville
, FL
32653
US
Supervisor:
Michael S Cherkiss
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All samples were collected within a 9km stretch of the Santa Fe River in northern Florida, USA. In 2019 and 2020 we sampled claw tissue from Macrochelys suwanniensis, Chelydra serpentina, and Trachemys scripta scripta, from three different sampling locations. We collected Vegetation and potential prey tissue samples within close proximity of turtle captures from two of the three capture locations. All tissues were used for stable carbon and nitrogen isotope analysis.
Categories: Data;
Tags: Ecology,
Florida,
Lower Suwannee,
USGS Science Data Catalog (SDC),
Wildlife Biology, All tags...
Wildlife Biology,
biological resources,
biota,
carbon isotope analysis,
food resources,
food web,
light stable isotope analysis,
stable isotope analysis,
wetland ecosystems, Fewer tags
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This dataset represents stable carbon and nitrogen isotopic information from tissue samples collected from diamondback terrapins, potential prey items, and vegetation from 6 salt marsh sites (4 mainland, 2 island) within a 30 km section of southern Barnegat Bay, New Jersey, USA. Red blood cells were collected from terrapins in 2011 (mature females), and whole blood samples were collected in 2015 and 2019 from mature males and females and immature females. Vegetation and invertebrates prey samples were collected within proximity of terrapin capture sites in 2015 and 2019.
Categories: Data;
Tags: Aquatic Biology,
Barnegat Bay,
Ecology,
New Jersey Coastal,
Salt Marsh, All tags...
USGS Science Data Catalog (SDC),
Wildlife Biology,
benthic ecosystems,
carbon isotope analysis,
community ecology,
ecosystem monitoring,
estuary,
farming,
hurricanes,
light stable isotope analysis,
wetlands, Fewer tags
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This study was initiated to provide baseline data and to determine the utility of stable isotope analysis to evaluate the foraging strategies of an opportunistic reptile predator. Stable isotope ratios of carbon and nitrogen were evaluated from multiple tissues from terrapin populations to determine spatial or temporal variations in resource use within mangrove habitats in Southern Florida. We sampled Diamondback terrapin (Malaclemys terrapin) and potential resources within mainland and island habitats, and evaluated their δ13C and δ15N values. We fit linear regression models to determine the best predictors of isotopic values for both terrapins and their prey, and SIBER analysis to examine terrapin isotopic niche...
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