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Shasta Salamanders Surveys for the Shasta-Trinity National Forest (ver. 2.0, July 2020)

Dates

Publication Date
Start Date
2019-04-02
Revision
2020-07-22

Citation

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.

Summary

The Shasta salamander (Hydromantes shastae) has been petitioned for listing under the Endangered Species Act. The greatest threat to the species is likely habitat loss that will be caused by the increase in elevation of Shasta Lake that will occur with proposed increases in the height of Shasta Dam to increase water storage capacity and maintain cold water for Chinook salmon (Oncorhynchus tshawytscha). Another potential threat is the fungus Batrachochytrium salamandrivorans, which has not yet been detected in North America but is lethal to related salamanders (Hydromantes strinatii) in Europe (Martel et al. 2014). In addition to these threats, recent genetic evidence suggests that the species as originally petitioned consists of three [...]

Child Items (1)

Contacts

Point of Contact :
Brian J Halstead
Originator :
Patrick M Kleeman, Brian J Halstead
Metadata Contact :
Brian J Halstead
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Western Ecological Research Center
USGS Mission Area :
Ecosystems

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Shapefile: Shasta-TrinityNF.zip
Shasta-TrinityNF.prj 167 Bytes
Shasta-TrinityNF.sbn 164 Bytes
Shasta-TrinityNF.sbx 124 Bytes
Shasta-TrinityNF.shp 471.01 KB
Shasta-TrinityNF.shx 116 Bytes
Shasta-TrinityNF.cpg 5 Bytes
Shasta-TrinityNF.dbf 2.21 KB

Purpose

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.

Rights

The authors of these data require that data users contact them regarding intended use and to assist with understanding limitations and interpretation. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

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  • USGS Western Ecological Research Center

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Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9VKZMBN

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