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    • USGS North American Packrat Midden Database, Version 5.0

    Metadata Updated: January 21, 2026

    This data release contains the data tables for the USGS North American Packrat Midden Database (version 5.0). This version of the Midden Database contains data for 3,331 packrat midden samples obtained from published sources (journal articles, book chapters, theses, dissertations, government and private industry reports, conference proceedings) as well as unpublished data contributed by researchers. Compared to the previous version of the Midden Database (i.e., ver. 4), this version of the database (ver. 5.0) has been expanded to include more precise midden-sample site location data, calibrated midden-sample age data, and plant functional type (PFT) assignments for the taxa in each midden sample. In addition, World Wildlife Fund ecoregion and major habitat type (MHT) assignments (Ricketts and others, 1999, Terrestrial ecoregions of North America—A conservation assessment) and modern climate and bioclimate data (New and others, 2002; Davis and others, 2017) are provided for each midden-sample site location.

    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 January 12, 2026
    Metadata Updated Date January 21, 2026

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 12, 2026
    Metadata Updated Date January 21, 2026
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/USGS_5f723cbb82cef8d183971808
    Data Last Modified 2022-10-03T00:00:00Z
    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
    Datagov Dedupe Retained 20260120204141
    Harvest Object Id 4712a226-b409-482e-affd-ab24bf57f26e
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": -124.480556, 25.9, -124.480556, 52.669444, -102.666667, 52.669444, -102.666667, 25.9, -124.480556, 25.9}
    Source Datajson Identifier True
    Source Hash 9ecad182c1b06baf4632d1e2798e18a5d07a58d03dfbbec72cf0941b84b51215
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -124.480556, 25.9, -124.480556, 52.669444, -102.666667, 52.669444, -102.666667, 25.9, -124.480556, 25.9}

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