Cave- and Crevice-Dwelling Bats on USACE Projects: Gray Bat (Myotis grisescens)
ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
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This document is one in a series of technical notes produced by the U.S. Army Engineer Research and Development Center ERDC under the Ecosystem Management and Restoration Research Program EMRRP. The technical notes identify sensitive species potentially impacted by U.S. Army Corps of Engineers Corps reservoir operations and are products of the EMRRP work unit entitled Reservoir Operations - Impacts on Habitats of Target Species Dickerson, Martin, and Allen 1999 Kasul, Martin, and Allen 2000. This document is one of a group of technical notes that provide information on selected bat species that have the potential to occur on Corps projects in the eastern United States and be impacted by Corps activities. It is linked to a technical note ERDC TN-EMRRP-SI-24, which presents an overview of general habitat requirements, impacts, and management needs for these species. For management purposes, the endangered gray bat Myotis grisescens Figure 1 is considered a riparian species because it may forage over water or in riparian zones surrounding streams and lakes on Corps lands during summer months. This technical note describes the distribution, legal status, ecology, potential impacts, and management guidelines for the gray bat.