18 datasets found
-
Federal
Stable isotope data and terrain variables for isoscape modeling around two submarine canyons in the western Atlantic sampled in 2012-2013
Department of the Interior —
Terrain variables extracted from bathymetry were used in combination with stable isotope datasets to construct geospatially-explicit isoscapes that predicted... -
Federal
Food-web structure of canyon and slope associated fauna revealed by stable isotopes
Department of the Interior —
The primary objective of this study was to assess deepsea food web structure and trophic niches in Baltimore and Norfolk canyons, the adjacent slopes, and... -
Federal
Food web fatty acids and stable isotopes in the Upper Mississippi River Basin 2013-2014: Data
Department of the Interior —
This dataset includes information from multiple taxa collected from four main reaches in the Upper Mississippi River Basin, including La Grange reach of Illinois... -
Federal
Host feeding ecology and trophic position significantly influence isotopic discrimination between a generalist ectoparasite and its hosts: implications for parasite-host trophic studies
Department of the Interior —
Despite being one of the most prevalent forms of consumerism in ecological communities, parasitism has largely been excluded from food-web models. Stable isotope... -
Federal
Zinc concentration data from mayfly exposure experiment
Department of the Interior —
This release is for data on Zinc concentrations and isotopic signatures of an aquatic insect (mayfly, Baetis tricaudatus). Mayflies were exposed to an aqueous zinc... -
Federal
Stable isotopic insights into Bathymodiolus childressi at two seeps in the U.S. Atlantic margin
Department of the Interior —
Chemosynthetic environments support distinct benthic communities capable of utilizing reduced chemical compounds for nutrition. Hundreds of methane seeps have been... -
Federal
Carbon and nitrogen isotopic values from three omnivorous turtles, vegetation, and potential prey resources in the Santa Fe River, Florida sampled 2019-2020
Department of the Interior —
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,... -
Federal
Geochemistry of fine-grained sediment in Bellingham Bay, Nooksack River, and small creeks from June 2017 to September 2019
Department of the Interior —
Elemental compositions are reported for the fine fraction of surface sediments from Bellingham Bay (June 2017 and March 2019) and in the fine fraction of streambank... -
Federal
Carbon, nitrogen, and phosphorus content of adult emergent Diptera before and after a fire-storm sequence in the Colorado River near Shinumo Creek, Grand Canyon, AZ
Department of the Interior —
This dataset includes total phosphorus (TP), total nitrogen (TN), and total carbon (TC) concentrations as well as δ15N and δ13C composition, and overall C:N:P... -
Federal
Stable isotope data for sea turtles and prey items in St. Joseph Bay, FL (2011-2021) and comprehensive summary of sea turtle diet papers
Department of the Interior —
This stable isotope dataset includes the carbon and nitrogen values for loggerhead, Kemp's ridley, green sea turtles and their prey items in St. Joseph Bay, FL... -
Federal
Stable hydrogen and oxygen isotopic compositions of precipitation samples from selected Colorado and Utah National Atmospheric Deposition Program (NADP) sites
Department of the Interior —
The stable hydrogen (delta 2H) and oxygen (delta 18O) isotopic compositions of more than 4,300 weekly composite samples of precipitation from thirteen National... -
Federal
USGS46a Greenland ice core water – A reference material for stable hydrogen and oxygen isotopic composition of water
Department of the Interior —
Ice core from Greenland was melted, filtered, and homogenized. Its stable hydrogen (δ2H) and oxygen (δ18O) isotopic compositions were adjusted to approximately match... -
Federal
Water and gas chemistry; Southwest Montana; 1974-1975: Mariner et al., 1976
Department of the Interior —
Water and gas chemistry data from: Mariner, R.H., Presser, T.S. and Evans, W.C., 1976. Chemical characteristics of the major thermal springs of Montana. U.S.... -
Federal
Zinc concentrations and isotopic signatures of an aquatic insect (mayfly, Baetis tricaudatus)
Department of the Interior —
Insect metamorphosis often results in substantial chemical changes that can fractionate isotopes and alter contaminant concentrations. We exposed larval mayflies... -
Federal
Stable isotope ratios of carbon and nitrogen from diamondback terrapins and resources within Southern Everglades and Key West National Wildlife Refuge, sampled 2012-2013
Department of the Interior —
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... -
Federal
Geochemistry of surface sediment and sediment cores in Bellingham Bay, Whatcom County, Washington, in February 2020
Department of the Interior —
Geochemical data are reported for surface sediments and long sediment cores from Bellingham Bay, Whatcom County, Washington, collected in early February 2020 after... -
Federal
Isotope concentrations in different mayfly life stages
Department of the Interior —
This release is for data on Zinc concentrations and isotopic signatures of an aquatic insect (mayfly, Baetis tricaudatus). Mayflies were exposed to an aqueous zinc... -
Federal
Compound specific isotope analysis of amino acids from Escanaba Trough sediments, off the coast of Northern California, USA, from May-June 2022.
Department of the Interior —
Stable carbon isotope ratios (d13C), stable nitrogen isotope ratios (d15N), and molar percentage data of amino acids were determined on one to five cm subsamples of...
18 datasets found