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    • ABoVE: Dall Sheep Lamb Recruitment and Climate Data, Alaska and NW Canada, 2000-2015

    Metadata Updated: December 6, 2023

    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 population data are from surveys conducted over the 14 major mountain ranges encompassing the range of Dall sheep. For this study, the mountain ranges were divided into 24 mountain units due to differing climate gradients. Estimated covariate environmental and climate data used to examine the relationship between environmental conditions and Dall sheep population performance (per mountain unit) are also provided and include precipitation, temperature, snow cover, elevation, and distance to the center of the range.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date December 1, 2022
    Metadata Updated Date December 6, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    A herd of Dall sheep ewes and lambs are dwarfed by the mountainous landscape in Wrangell St. Elias National Park, Alaska, March 2017. Photo credit: Laura Prugh.

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date December 6, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2162145802-ORNL_CLOUD
    Data First Published 2022-11-28
    Language en-US
    Data Last Modified 2023-06-12
    Category ABoVE, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.nasa.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Citation van de Kerk, M., D. Verbyla, A.W. Nolin, K.J. Sivy, and L.R. Prugh. 2018. ABoVE: Dall Sheep Lamb Recruitment and Climate Data, Alaska and NW Canada, 2000-2015. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1640
    Graphic Preview Description A herd of Dall sheep ewes and lambs are dwarfed by the mountainous landscape in Wrangell St. Elias National Park, Alaska, March 2017. Photo credit: Laura Prugh.
    Graphic Preview File https://daac.ornl.gov/ABOVE/guides/Dall_Sheep_Population_Dynamics_Fig1.jpg
    Harvest Object Id 9b460929-ff9a-4865-b724-171f32c1dae9
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/1640
    Metadata Type geospatial
    Old Spatial -163.28 59.6 -123.55 69.71
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 6eb88711d13f96e4a0a977970418cdb85a23ff8cd794c24f68c6ff09bd4f09db
    Source Schema Version 1.1
    Spatial
    Temporal 2000-01-01T00:00:00Z/2015-12-31T23:59:59Z

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