• Organization: Department of the Interior
• Updated: 2005-01-01T00:00:00Z

Aerial survey units for surveys of Dall's sheep and mountain goats in Wrangell-St. Elias National Park and Preserve. The count areas were originally delineated by Alaska Department of Fish and...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

This dataset contains Dall sheep (Ovis dalli dalli) hoof sinking depths in snow tracks, and snow depth, hardness, and density measurements in snow pits adjacent to the tracks. Snow measurements...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2018-01-08T00:00:00.000+00:00

We used a well-established Generalized Additive Modeling framework to develop cetacean SDMs based on 20 California Cooperative Oceanic Fisheries Investigations (CalCOFI) shipboard surveys...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

This dataset contains estimated annual average Dall sheep (Ovis dalli dalli) lamb-to-ewe ratios for each year from 2000-2015 across the full species range in Alaska and Northwestern Canada. Sheep...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2020-12-01T00:00:00.000+00:00

To develop improved species distribution models (SDMs) and to update US West Coast cetacean stock abundance estimates, sighting data from NOAA’s Southwest Fisheries Science Center 2018 California...

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• Organization: Department of the Interior
• Updated: 2024-12-04T00:00:00Z

Populations of Dall sheep (Ovis dalli) have been declining in the Chugach Range, Alaska since the 1990s. Past research suggests that fire can increase the carrying capacity of habitat for Dall...

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• Organization: Department of the Interior
• Updated: 2024-11-25T00:00:00Z

Populations of Dall sheep (Ovis dalli) have been declining in the Chugach Range, Alaska since the 1990s. Past research suggests that fire can increase the carrying capacity of habitat for Dall...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2008-12-01T00:00:00.000+00:00

As part of the Bering Sea Integrated Ecosystem Research Program (BSIERP) funded by the North Pacific Research Board (http://www.nprb.org/bering-sea-project), cetacean surveys were conducted to...

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• Organization: Department of the Interior
• Updated: 2024-09-03T00:00:00Z

Raw DNA sequence reads of ITS (for fungi) and rbcL (for plants) metabarcoding assays of Dall sheep feces to determine Dall sheep diet. DNA extraction through sequencing steps were performed by...

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• Organization: Department of the Interior
• Updated: 2025-04-01T00:00:00Z

Little documentation exists for habitat use by Dall’s sheep, or the role sheep play in the disturbance and/or maintenance of sensitive vegetation associations within Yukon-Charley Rivers NP. To...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2016-04-13T00:00:00.000+00:00

This project assesses the development of two important skeletal muscle adaptations for diving (enhanced myoglobin content and acid buffering capacities) in a range of cetaceans from the Pacific...

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• Organization: Department of the Interior
• Updated: 2021-02-23T00:00:00Z

Example dataset used in: Using spatial distance sampling models to optimize survey effort and address violations of the design assumption

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2016-05-02T00:00:00.000+00:00

This data collection comprises seasonal distribution maps and model outputs of selected seabird, pinniped and cetacean species off the Pacific coast of Washington. The maps were developed by...

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• Organization: Department of the Interior
• Updated: 2025-07-24T00:00:00Z

Two data sets including the group size analysis (All_Sheep_Groups_GroupSizeAnalysis.csv) and the case study in Wrangell St. Elias National Park and Preserve (WRST_CaseStudy.csv), both of which...

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• Organization: Department of the Interior
• Updated: 2015-01-01T00:00:00Z

Dall sheep aerial survey units from the early 1980s by Francis Singer in Noatak National Preserve and Gates of the Arctic National Park and Preserve in Alaska. Dall sheep were surveyed 1981-83...

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• Organization: Department of the Interior
• Updated: 2025-02-28T00:00:00Z

Tabular datasets containing information related to Dall sheep fecal samples collected as part of the Dall sheep response to fire project at Kenai National Wildlife Refuge. The data contain two...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2020-05-11T00:00:00.000+00:00

Species distribution models (SDMs) are important management tools for highly mobile marine species because they provide spatially and temporally explicit information on animal distribution. Two...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2016-02-16T00:00:00.000+00:00

We developed predictive habitat-based models of cetacean density based on seven shipboard cetacean surveys conducted during summer and fall between 1991 and 2009 in the California Current...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2011-05-06T00:00:00.000+00:00

This dataset from the Channel Islands National Park's Kelp Forest Monitoring Program has measurements of the abundance (density) of relatively abundant selected sedentary indicator species. The...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2023-04-05T00:00:00.000+00:00

This dataset includes visual line transect survey data collected in the summer of 2019 in the waters of Southeast Alaska. The survey was designed for updating the abundance estimate of harbor...

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