Shasta Salamanders Survey Results for the Shasta-Trinity National Forest, 2019-2020

Publication Date

2019-11-26

Start Date

2019-04-02

End Date

2020-03-14

Revision

2020-07-22

Halstead, B.J., and Kleeman, P.M., 2020, Shasta salamanders surveys for the Shasta-Trinity National Forest (ver. 2.0, July 2020): U.S. Geological Survey data release, https://doi.org/10.5066/P9VKZMBN.

The purpose of this project was to increase survey effort in select areas designated by the U.S. Fish and Wildlife Service to increase information about the range and probability of occurrence of Shasta salamanders. In particular, we sought to: 1) Develop and implement a systematic survey protocol for Shasta salamanders. 2) Survey for Shasta salamanders in areas deemed high priority by the U.S. Fish and Wildlife Service (USFWS). 3) Estimate Shasta salamander probability of occurrence and detection probabilities under the protocol, and propose modifications to the protocol that will increase detection probabilities and survey repeatability. This information is required to inform U.S. Fish & Wildlife Service management activities; both to assess the potential effects of increasing the level of Shasta Lake on Shasta salamanders and to evaluate whether the species complex should be listed under the U.S. Endangered Species Act.

• USGS Western Ecological Research Center

Data source

Input directly