The status of bat populations in selected mines in the Silver Valley, Kootenai and Shoshone counties and the Clark Fork area, Bonner County, Idaho. Final Report

Publication Type:

Report

Authors:

Keller, Barry L.

Source:

p.19 + maps (1995)

Call Number:

U95KEL03IDUS

Keywords:

Big Brown Bat, California Myotis, Corynorhinus townsendii, Eptesicus fuscus, Fringed Myotis, Little Brown Myotis, Myotis californicus, Myotis lucifugus, Myotis thysanodes, Myotis yumanensis, Townsend's Big-Eared Bat, Yuma Myotis

Abstract:

This report details the results of a field assessment of bat populations in the panhandle area of northern Idaho. The main study area occurs in the Silver Valley, an area (Fig.1) bounded at the eastern edge near Mullan to the western edge near Pinehurst. A single northern area near Clark Fork was studied intensively as a result of an adit suggested to have supported Townsend's big-eared bats (Plecotus townsendii) historically. Sampling, restricted by assessing the utility of netting abandoned mines located within driving distance of I-90, the main travel corridor in the Silver Valley, and along roads in the Clark Fork area, was completed by William Bosworth, Robert Doering, and Barry Keller during late July and early August 1994. Keller returned to the Clark Fork area to continue locating and netting mines through August 4, 1994. Sonic activity of bat populations was monitored at all sampling sites to assess bat presence during net samplings and to gather information on potential Plecotus avoiding capture. A winter survey of six previously visited sites was conducted March 21–22, 1995, by Keller and Richard Saathoff. Retained frozen specimens and text for this report were prepared at the Idaho Museum of Natural History, Pocatello.