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

Description

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.

Resources

Name Format Description Link
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/above/Dall_Sheep_Population_Dynamics/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ABOVE/guides/Dall_Sheep_Population_Dynamics.html
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1640
21 ABoVE project site https://above.nasa.gov
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1640
22 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. https://daac.ornl.gov/ABOVE/guides/Dall_Sheep_Population_Dynamics_Fig1.jpg
25 ABoVE: Range-wide Dall Sheep Lamb-to-Ewe Ratios, Environment and Climate, 2000-2015: mountainunits.kmz https://data.ornldaac.earthdata.nasa.gov/public/above/Dall_Sheep_Population_Dynamics/comp/mountainunits.kmz
33 ABoVE: Range-wide Dall Sheep Lamb-to-Ewe Ratios, Environment and Climate, 2000-2015: Dall_Sheep_Population_Dynamics.pdf https://data.ornldaac.earthdata.nasa.gov/public/above/Dall_Sheep_Population_Dynamics/comp/Dall_Sheep_Population_Dynamics.pdf

Tags

  • precipitation
  • snow-ice
  • climate-indicators
  • biosphere
  • national-geospatial-data-asset
  • atmosphere
  • atmospheric-temperature
  • biological-classification
  • terrestrial-hydrosphere
  • ngda
  • biospheric-indicators
  • ecological-dynamics
  • animals-vertebrates
  • earth-science

Topics

Categories