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Predicted Pinyon Jay (Gymnorhinus cyanocephalus) densities across the western United States, 2008-2020

Metadata Updated: November 20, 2025

Management intended to benefit a target species may also affect non-target species that co-occur over space and time. Pinyon jay (Gymnorhinus cyanocephalus) populations experienced long-term declines and rely on habitat that could be lost to conifer removal programs for greater sage-grouse (Centrocercus urophasianus). Using 13 years of point count data (2008-2020) collected across the western United States and a suite of relevant covariates for habitat, we fit a hierarchical model to characterize and predict pinyon jay densities and evaluate population trends. The resulting maps include pinyon jay density at the beginning (PIJA_2008_PredictedDensity.tif) and end (PIJA_2020_PredictedDensity.tif) of our study period, a map depicting the percent change (difference) between the two years (PIJA_MedianDensityChange_2008to2020.tif), as well as masks representing all raster cells where one or more covariate pixel value(s) fell outside of the 2.5 and 97.5 percent quantiles of the covariate sample used when fitting the model, which could result in unusually high or low predictions of pinyon jay density (PIJA_mask_raster_2008.tif and PIJA_mask_raster_2020.tif).

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.

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Dates

Metadata Created Date September 13, 2025
Metadata Updated Date November 20, 2025

Metadata Source

Harvested from DOI USGS DCAT-US

Additional Metadata

Resource Type Dataset
Metadata Created Date September 13, 2025
Metadata Updated Date November 20, 2025
Publisher U.S. Geological Survey
Maintainer
Identifier http://datainventory.doi.gov/id/dataset/usgs-636d843ed34ed907bf6bafed
Data Last Modified 2023-02-27T00:00:00Z
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://ddi.doi.gov/usgs-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
Harvest Object Id 2324ae33-c04b-4b66-8039-d35ef9fcf79c
Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
Harvest Source Title DOI USGS DCAT-US
Metadata Type geospatial
Source Datajson Identifier True
Source Hash 54c2299eb40af12a8526abdd987565c54042c13aafe2523e91f646c15a8265bf
Source Schema Version 1.1

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