Publication Type:
UnpublishedSource:
p.31 (2009)Call Number:
N09PET01IDUSKeywords:
Big-brown bat, Corynorhinus townsendii, Eptesicus fuscus, Fringed Myotis, Long-eared Myotis, Myotis evotis, Myotis sp., Myotis thysanodes, Myotis volans, Townsend's Big-Eared BatAbstract:
A total of 26 mine entrances within the Lost River Ranger District and the Salmon/Cobalt Ranger District of the Salmon-Challis National Forest were externally documented. Emergence surveys were conducted on 19 mine entrances. All 26 mine entrances were characterized and recommendations made as to importance for bat use and conservation, human safety risks, and likelihood of visitation by humans (Appendix A). A total of 19 emergence acoustic surveys were completed; four of these were done in tandem with mistnetting activities (Appendix B). Numbers of passes recorded varied from 0 to 145. No bats were detected on eight of the surveys, and no maternity colonies were discovered. Mist-netting was completed at four sites, with bats captured at two locations (Appendix B). Numbers of individuals ranged from two to seven, with four different species documented. Townsend’s big-eared bats were documented at one mist-net site. More details can be found in the report's Appendix A - 2009 Acoustic Survey Results.
Notes:
ELECTRONIC FILE - Zoology: Mammals, Data Processed, Bats
Citation: Petterson, J. 2009. Bats and mines surveys: Salmon-Challis National Forest. Report (PDF), appendix to the report (PDF), and 2 sets of Excel spreadsheets.