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Biology and Ecosystems
Learn more about research and monitoring on freshwater, terrestrial, and marine ecosystems and the fish and wildlife within them. Healthy ecosystems provide our society with essential ecosystem services, such as crop pollination, water and air purification, harvestable populations of fish and wildlife, soil replenishment, pest control, and nutrient cycling.
Elevation of marsh units in Fire Island National Seashore and Central Great South Bay salt marsh complex, New York
Elevation distribution in the Fire Island National Seashore and Central Great South Bay salt marsh complex is given in terms of mean elevation of conceptual marsh units defined by Defne and Ganju (2018). The elevation data is based on the 1-meter resolution Coastal National Elevation Database (CoNED).
Identifying the locations and causes of grizzly bear mortality is another key component in understanding the dynamics of this population. Over 80% of all documented bear mortalities are human-caused. Tracking human-caused bear deaths helps define patterns and trends that can direct management programs designed to reduce bear mortality.
Data set containing avian influenza sampling information for late summer and early autumn waterfowl and gulls within and around the Izembek National Wildlife Refuge (NWR), Alaska, 2011-2016. Data contains species, age, sex, collection data and location of sampled migratory birds. Laboratory specific data used to identify presence and absence of influenza A viruses (IAVs) from collected...
Gulf Watch Alaska Nearshore Component: Intertidal Soft-Sediment Invertebrates from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park, 2007-2015
These data are part of the Gulf Watch Alaska (GWA) long term monitoring program, nearshore monitoring component. The data consists of species identification, counts, and size measurements from intertidal soft-sediment sampling sites. Observers excavated, identified, and measured invertebrates from soft sediment sites. Sites are in Alaska and include locations in Katmai National Park and...
The degree to which eelgrass on river deltas provides critical habitat for estuarine fishes, especially out‐migrating juvenile salmon, is an important scientific and management issue that bears on efforts to conserve and restore both eelgrass and fish.
Measures of Oxygen Consumption and Stroke Frequency of a Captive Subadult Female Polar Bear (Ursus maritimus) while Resting in Water and Swimming and Diving in a Metabolic Water Flume, Oregon Zoo, 2017
This dataset contains measures of oxygen consumption and stroke frequency from 1 captive subadult female polar bear (166.5 kg) resting in the water (n = 7 sessions) and swimming and diving in a metabolic swim flume with water circulated at approximately 0.6 km/hr during swimming and diving measurements (n = 6 sessions) in September 2017.
Brown Bear (Ursus acrtos) Captures and Serological Survey Results for Bacterial Viral and Parasitic Agents, Alaska, 2013-2016
Data set containing test results of screening blood and serum samples from five populations of Brown Bears in Alaska. Samples were tested to detect current or previous exposure to bacteria (Brucella spp., Francisella tularensis, and Leptospira spp.), viruses (canine adenovirus, canine distemper virus, canine parvovirus, and influenza A virus), and parasites (Toxoplasma gondii, and Trichinella...
The USGS presents video and photographs of seafloor segments off California, from the U.S.-Mexico border to the Oregon State line. The USGS collected this imagery as part of the California Seafloor Mapping Program, a large collaborative effort supported by the ...
This web application allows users to make comparisons between national scale environmental datasets and Bacillus species and Bacillus anthracis detection results. The datasets include soil physical, chemical, and mineralogical data, current and historical climate data, landcover, and biological surveys.
Ontogenetic changes in routine and maximum swimming speeds of bighead, grass, and silver carp larvae. Daily measurements of routine swimming speed were taken for two weeks post-hatch using a still camera and the LARVEL program, a custom image-analysis software.
DATA RELEASE - Spatial distribution and risk analysis data for diamond-backed terrapins relative to crab trapping, Savannah Coastal Refuge Complex, USA - Data
The data collected during the systematic inventory of diamond-backed terrapins includes information on terrapin detection in tidal creeks on refuges, crab pot numbers and locations, and a variety of environmental-, location-, and observer-related variables to examine the effects of both environmental conditions and observer bias on terrapin detection.