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Cascade torrent salamander (Rhyacotriton cascadae) surveys in Oregon and Washington 2022

Metadata Updated: October 30, 2025

The US Fish and Wildlife Service (USFWS) is evaluating the status of the Cascade torrent salamander (Rhyacotriton cascadae) across its range to determine whether the species merits listing under the Endangered Species Act. The USGS conducted visual surveys for Rhyacotriton cascadae at 65 sites in Oregon and Washington that were historically occupied by the species. Sites were selected from a pool of historic records that had high locational precision, were spatially independent, and were stratified across 8 subbasins identified by USFWS as priorities. We visited sites one to two times between 4 May and 12 October in 2022 and documented all amphibian species observed during 1 hour time-constrained surveys. We also collected tail clip genetics samples from up to 5 individual R. cascadae at sites where the species was found. This dataset includes counts of all amphibians observed during each site survey, as well as habitat and water sampling covariates. All activities were authorized under a 2022 ODFW Scientific Taking Permit (049-22), a 2022 WDFW Scientific Collection Permit (22-024), and a USGS Forest and Rangeland Ecosystem Science Center Animal Care and Use Protocol (ACUP 2021-001).

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 September 14, 2025
Metadata Updated Date October 30, 2025

Metadata Source

Harvested from DOI USGS DCAT-US

Additional Metadata

Resource Type Dataset
Metadata Created Date September 14, 2025
Metadata Updated Date October 30, 2025
Publisher U.S. Geological Survey
Maintainer
Identifier http://datainventory.doi.gov/id/dataset/usgs-641ca001d34e807d39b6547d
Data Last Modified 2023-04-04T00:00:00Z
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 69bde4b2-4e00-408f-9a5c-1f907d35d910
Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
Harvest Source Title DOI USGS DCAT-US
Metadata Type geospatial
Old Spatial -122.7220, 43.768, -121.6407, 46.769
Source Datajson Identifier True
Source Hash 0102ed068c3f357f8a26e3392605197495153b8eeccc4765b733063241eb08a1
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -122.7220, 43.768, -122.7220, 46.769, -121.6407, 46.769, -121.6407, 43.768, -122.7220, 43.768}

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