153 datasets found
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Federal
Lake Ontario April Prey Fish Bottom Trawl Survey, 1978-2024
Department of the Interior —
This data release includes Lake Ontario prey fish data including species captured, relative abundance, spatial distribution, size structure, and age data from the... -
Federal
Alaska Forage Fish Database (AFFD)
Department of the Interior —
The Alaska Forage Fish Database (AFFD) is a consolidation of survey data from multiple agencies that were sampled via fishing gear and predator diets. The spatial... -
Federal
Census (Survey) Database Used for Demographic Analysis of Agassiz’s Desert Tortoise (Gopherus agassizii) on a 7.77 square km plot inside and outside the fenced Desert Tortoise Research Natural Area, Western Mojave Desert, USA, over a 34-year Period
Department of the Interior —
We developed a model for analyzing multi-year demographic data for long-lived animals and used data from a population of Agassiz’s desert tortoise (Gopherus... -
Federal
Sea Otter Aerial Survey Data from Lower Cook Inlet, Alaska, 2017
Department of the Interior —
This dataset consists of three tables related to abundance and distribution of northern sea otters (Enhydra lutris kenyoni) in lower Cook Inlet, Alaska, based on data... -
Federal
Data files to construct an Integral Projection Model for Giant Gartersnakes (Thamnophis gigas) in the Sacramento Valley, California, 1995-2017
Department of the Interior —
These data support the following publication: Rose, J.P., Ersan, J.S., Wylie, G.D., Casazza, M.L. and Halstead, B.J., 2019. Demographic factors affecting population... -
Federal
Population dynamics of humpback chub, rainbow trout and brown trout in the Colorado River in its Grand Canyon Reach: fit and sim input data
Department of the Interior —
These data were compiled to fit an integrated population model of brown trout in the Glen Canyon Reach of the Colorado River and test different hypotheses regarding... -
Federal
Impact of Drought on Southwestern Pronghorn Population Trends and Predicted Trajectories in the Southwest in the Face of Climate Change
Department of the Interior —
Climate often drives ungulate population dynamics, and as climates change, some areas may become unsuitable for species persistence. Unraveling the relationships... -
Federal
Coachella Valley fringe-toed lizard (Uma inornata) capture data (2017 and 2018)
Department of the Interior —
This dataset includes location, field measurements, and descriptions of 330 Uma inornata sampled for the research study entitled “Sampling Across 20 Years (1996–2017)... -
Federal
Lake Erie Fish Community Data, 2013-2024
Department of the Interior —
Assessing the distribution and abundance of both predator and prey (forage) fish species is a cornerstone of ecosystem-based fishery management and supports decision... -
Federal
Oregon Spotted Frog Monitoring at Jack Creek 2015-2018 (final)
Department of the Interior —
This dataset contains information from mark-recapture and egg mass surveys conducted 2015-2018 by USGS as part of an ongoing Oregon spotted frog (Rana pretiosa)... -
Federal
Spectacled Eider (Somateria fischeri) Nest, Capture, and Resight Records, Yukon-Kuskokwim Delta, Alaska
Department of the Interior —
This dataset contains nest visit records and capture, measurement, and resight data from Spectacled Eiders (Somateria fischeri) near the Kashunuk River and on Kigigak... -
Federal
Comparison of Acoustic Recorders and Field Observers for Monitoring Tundra Bird Communities in Northwestern Alaska
Department of the Interior —
Acoustic recorders can detect the presence of birds and these detections may be used for the purpose of population abundance or estimation. This monitoring project... -
Federal
Black bear detections in Glacier National Park, Montana, in 2004
Department of the Interior —
Text file containing detection events from genetic sampling sites associated with the unique identifier of American black bears in Glacier National Park, Montana,... -
Federal
Model code to build and run an integrated population model for the endangered Cape Sable Seaside Sparrow
Department of the Interior —
The Cape Sable Seaside Sparrow (CSSS; Ammospiza maritima mirabilis) is an endangered species that has experienced population declines of more than 60% since the... -
Federal
Breeding Waterbird Populations in South San Francisco Bay 2005-2019
Department of the Interior —
The dataset includes three separate excel spreadsheets which provides waterbird (and predator) observations within individual survey units during the May 2019... -
Federal
Nesting Productivity of Black-Legged Kittiwakes and Common Murres at Two Seabird Colonies in Lower Cook Inlet, Alaska
Department of the Interior —
This dataset consists of one table with annual nesting productivity estimates for Black-legged Kittiwakes and Common Murres at two seabird nesting colonies on Gull... -
Federal
Sea Otter Aerial Survey Data from Western Prince William Sound, Alaska, 2017
Department of the Interior —
This dataset consists of three tables related to abundance and distribution of northern sea otters (Enhydra lutris kenyoni) in western Prince William Sound, Alaska,... -
Federal
Assessing the Status and Trends of Seabirds and Forage Fish in Lower Cook Inlet, Alaska
Department of the Interior —
This data package includes 7 child items with data about the seabird abundance, productivity, predator disturbance, morphology of forage fish, and hydroacoustic... -
Federal
Northern spotted owl data and analysis code, Cascade Range, Pacific Northwest, USA
Department of the Interior —
These data were compiled to allow examination of northern spotted owl territorial occupancy dynamics, especially with regards to the roles played by habitat and... -
Federal
Demographic data for Hesperocyparis forbesii on Otay Mountain 2004-2017
Department of the Interior —
This dataset contains demographic data pertaining to Hesperocyparis forbesii on Otay Mountain in San Diego County, California, USA, over a 14-year study period from...
153 datasets found