75 datasets found
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Federal
Data from: Predation and immunocompetence: Grasshoppers increase Mormon cricket resistance to a fungal pathogen
Department of Agriculture —
Data DescriptionsfungalExpt.csvBeauveria bassiana GHA is registered for application to grasshoppers and Mormon crickets on rangeland and improved pasture. Conidia... -
Federal
Macrozooplankton Hydroacoustic Index Data from Prince William Sound, Alaska
Department of the Interior —
One table, providing echointegration data of macrozooplankton from three regions of Prince William Sound, Alaska that typically contain foraging aggregations of... -
Federal
Properties that influence pond-breeding salamander density and predation in midwestern United States ephemeral wetlands
U.S. Environmental Protection Agency —
Ephemeral wetlands provide habitat for a variety of taxa and are often critical breeding locations for amphibians. Although the impacts of abiotic properties of... -
Federal
Mercury and Methylmercury Stable Isotope Measurements in Giant Petrels
Department of the Interior —
Methylmercury (MeHg) and total mercury (HgT) stable isotope measurements were made by the USGS Mercury Research Lab (MRL) in different organs on the Giant Petrels... -
Federal
Total mercury, methylmercury, and isotopic composition in various life stages of boreal chorus frogs (Pseudacris maculata) at two subalpine ponds in the Rocky Mountains, CO, USA, 2015
Department of the Interior —
Mercury is an atmospherically transported contaminant found even in relatively pristine habitats. Once accumulated at the base of the food web, mercury can move... -
Federal
Food Web Data, Colorado River Corridor, Grand Canyon, Arizona, 2006
Department of the Interior —
These data were compiled for a manuscript that examines the riverine food-web structure of the Colorado River below Glen Canyon dam to its confluence with Lake Mead.... -
Federal
Data for Analysis of Endocrine Disrupting Compounds in Lake Mead National Recreation Area near Las Vegas, Nevada
Department of the Interior —
This data release presents the results of analyses of biota and water samples collected on multiple dates from 2007 to 2014 at 3 locations in Lake Mead National... -
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
Carbon Isotope Concentrations in Stream Food Webs of the Arctic Network National Parks, Alaska, 2014-2016
Department of the Interior —
This dataset is one table with information on the carbon isotopes in samples collected from organic and mineral soils, streams, algae, invertebrates, and fish in the... -
Federal
Lake Michigan Lake Trout Mercury Carbon Nitrogen Stable Isotope Ratios 1978-2012 v1
U.S. Environmental Protection Agency —
Time-series of mercury, carbon, and nitrogen stable isotope ratios of Lake Michigan lake trout from the EPA Great Lakes Fish Monitoring and Surveillance Program. -
Federal
Data from the Capture and Collection of Non-Die-Off Seabirds Across Alaska
Department of the Interior —
This data package contains one table with morphometric and diet information for "non-die-off" seabirds captured and collected in southcentral and southwest Alaska.... -
Federal
Great Lakes Research Vessel Operations 1958-2018: Trawl. (ver. 3.0, April 2019)
Department of the Interior —
All trawl data represented here expand upon vessel operations (OP table) data, all of which are collected by the United States Geological Survey, Great Lakes Science... -
Federal
Carbon, nitrogen, and sulfur stable isotopes from primary producers, invertebrates, and fish at the Nisqually River Delta, Washington from 2011, 2012, and 2015
Department of the Interior —
This dataset consists of carbon, nitrogen, and sulfur stable isotope data from primary producers, invertebrates, and fish from the Nisqually River Delta, Washington... -
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
Mercury Stable Isotope Assessment of Global Food Webs
Department of the Interior —
This dataset describes mercury (Hg) stable isotope values in fish dorsal muscle from different freshwater environments across the globe. Fish were collected at... -
Federal
Isotope data from Shimada 2018 research expedition
Department of the Interior —
Stable isotope data of fauna, particulate organic matter, and rocks collected during the 2018 research cruise aboard the NOAA Ship Bell M. Shimada that examined... -
Federal
Proximal and distal factors associated with the decline in secondary invertebrate prey production in the Colorado River, Glen Canyon, Arizona.
Department of the Interior —
Using a bioenergetic model, demographic data for the Rainbow Trout (Oncorhynchus mykiss) population were compiled and used to estimate total prey consumption in the... -
Federal
Double-crested Cormorant Diet Composition from Two Colonies in Saginaw Bay, Lake Huron, 2013-2014
Department of the Interior —
This tabular data set contains information about the diets of double-crested cormorants (Phalacrocorax auritus) collected from Saginaw Bay, Lake Huron during April-... -
Federal
Assessment of Mercury Cycling in the St Louis River, MN using Mercury and Food Web (Carbon and Nitrogen) Stable Isotopes: U.S. Geological Survey Data Release
U.S. Environmental Protection Agency —
Mercury concentration, mercury stable isotope ratio, and carbon and nitrogen stable isotope ratio data as applicable for sediment, water, invertebrates, and fish... -
Federal
Diets of Deepwater Sculpin collected from fall forage (2003-05 and 2010-14) in Lake Huron
Department of the Interior —
Diet contents of Deepwater Sculpin (Myoxocephalus thompsonii) were identified, enumerated, and measured to monitor the changes in the offshore benthic fish community...
75 datasets found