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Interagency Whitebark Pine Monitoring in the Greater Yellowstone Ecosystem: 2004-2025 — Data Package (PUBLIC)

Published by National Park Service | Department of the Interior | Catalog Last Checked: August 01, 2026 at 03:59 AM | Dataset Last Updated: May 29, 2026 at 12:00 AM
This Data Package includes several text files in comma-separated-values (CSV) format that were assembled with an R script from a administrative relational database in Microsoft Access. Each text file reflects distinct elements of a long-term, interagency monitoring program for Whitebark pine (Pinus albicaulis) trees in and around the Greater Yellowstone Ecosystem. These monitoring data comprise a statistical sample for tracking whitebark pine tree population condition and trend on National Park Service, U.S. Forest Service, and Bureau of Land Management lands in the region. This slow-growing, long-lived conifer influences critical ecosystem functions in subalpine environments, including snow capture, landscape stability, soil amelioration, and overall forest health and resilience. The nutritious seeds from whitebark pine tree cones provide an important food source for grizzly bear (Ursus arctos), Clark’s nutcracker (Nucifraga columbiana), red squirrel (Tamiasciurus hudsonicus), and other species. Whitebark pine is declining in high-elevation forests due to white pine blister rust (Cronartium ribicola), mountain pine beetle (Dendroctonus ponderosae) outbreaks, wildfire, and drought. Tree mortality, particularly of large, mature trees, has reduced cone production and compromises this species’ essential ecosystem services. Consequently, in 2023, the U.S. Fish and Wildlife Service listed the whitebark pine as federally threatened.

Resources

9 resources available

  • GRYN_whitebark_pine_monitoring_databasechangelog.csv

    CSV
  • GRYN_whitebark_pine_monitoring_metadata.xml

    XML
  • GRYN_whitebark_pine_monitoring_squirrelmiddens_transects_2004to2013.csv

    CSV
  • GRYN_whitebark_pine_monitoring_treedata_recruitmentcircularplots_2015to2025.csv

    CSV
  • GRYN_whitebark_pine_monitoring_treedata_regenerationstudy_2016to2024.csv

    CSV
  • GRYN_whitebark_pine_monitoring_treedata_transects_2004_unmonitoredsites.csv

    CSV
  • GRYN_whitebark_pine_monitoring_treedata_transects_2004to2025_additionalobservers.csv

    CSV
  • GRYN_whitebark_pine_monitoring_treedata_transects_2004to2025_principalobserver.csv

    CSV
  • GRYN_whitebark_pine_monitoring_treedata_transects_2007revisits_principalobserver.csv

    CSV

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