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    • ABoVE: Wolf Denning Phenology and Reproductive Success, Alaska and Canada, 2000-2017

    Metadata Updated: December 6, 2023

    This dataset provides annual gray wolf (Canis lupus) denning spatial information and timing, associated climatic and phenologic metrics, and reproductive success (i.e., pup survival) in wolf populations across areas of western Canada and Alaska within the NASA ABoVE Core Domain. The study encompasses 18 years between the period 2000-2017. Wolves were captured from eight populations following standard animal care protocols and released with Global Positioning System (GPS) collars. Data from 388 wolves were used to estimate den initiation dates (n=227 dens of 106 packs) and reproductive success in the eight populations. Each population was monitored from 1 to 12 years between 2000 and 2017. Denning parturition phenology was measured each year as the number of calendar days from January 1st to the initiation date of each documented denning event. Reproductive success was determined as to whether pups survived through the end of August following a reproductive event. To evaluate the effect of climate factors on reproductive phenology, aggregated seasonal climate metrics for temperature, precipitation, and snow water equivalent based on three biological seasons for seasonal wolf home ranges were produced. Normalized Difference Vegetation Index (NDVI) time-series data were used to estimate phenological metrics such as the start of the growing season (SOS), length of the growing season (LOS), and time-integrated NDVI (tiNDVI), and were summarized for the populations' home 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

    Spatial distribution of eight wolf study populations used in an assessment of denning phenology in response to climate signals from 2000-2017. The base map shows the day of the year representing the NDVI-derived start of the growing season in 2010. Source: Mahoney et al., 2020

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date December 6, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2143401778-ORNL_CLOUD
    Data First Published 2021-04-03
    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 Mahoney, P., K. Joly, B. Borg, M. Sorum, T. Rinaldi, D. Saalfeld, H. Golden, D. Latham, A. Kelly, B. Mangipane, C. Lambert, L. Neufeld, M. Hebblewhite, N. Boleman, and L.R. Prugh. 2021. ABoVE: Wolf Denning Phenology and Reproductive Success, Alaska and Canada, 2000-2017. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1846
    Graphic Preview Description Spatial distribution of eight wolf study populations used in an assessment of denning phenology in response to climate signals from 2000-2017. The base map shows the day of the year representing the NDVI-derived start of the growing season in 2010. Source: Mahoney et al., 2020
    Graphic Preview File https://daac.ornl.gov/ABOVE/guides/Wolves_Denning_Pups_Climate_Fig1.jpg
    Harvest Object Id 912dd5ad-b843-4d11-aadf-676fcfdcf882
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/1846
    Metadata Type geospatial
    Old Spatial -154.58 52.97 -112.97 67.84
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash bfbca63c99ba3a3de848cac74337d7b44382ed33299e1cd4e69c657f92fd9161
    Source Schema Version 1.1
    Spatial
    Temporal 2000-03-29T00:00:00Z/2017-08-31T23:59:59Z

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