Ozark Big-eared Bat (Corynorhinus Townsendii Ingens) PDF Download
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Author: Brian Fuller
Publisher:
ISBN:
Category : Bats
Languages : en
Pages : 106
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Book Description
The Ozark big-eared bat (Corynorhinus townsendii ingens) is an endangered subspecies of the Townsend big-eared bat (Corynorhinus townsendii). Human disturbance along with other factors resulted in population declines of the Ozark big-eared bat that were significant enough for the United States Fish and Wildlife Service (US FWS) to list the species as endangered in 1979. The US FWS recovery goal for the Ozark big-eared bat was an increasing or stable population over a 10 year period. To evaluate the progress towards this goal, I performed a population trend analysis over the last 10, 20, and 33 year periods. The total Oklahoma OBEB maternity population trend analysis did not show a trend but indicated a stable population for all three time periods. In addition I helped develop and test a new method for counting Ozark big-eared bats at maternity sites in Oklahoma using night vision video cameras and infrared lights as a viable alternative to current Ozark big-eared bat census techniques. The video method helps minimize human disturbance at the cave and allows people with very little experience to perform a reliable maternity count.
Author: Brian Fuller
Publisher:
ISBN:
Category : Bats
Languages : en
Pages : 106
Get Book Here
Book Description
The Ozark big-eared bat (Corynorhinus townsendii ingens) is an endangered subspecies of the Townsend big-eared bat (Corynorhinus townsendii). Human disturbance along with other factors resulted in population declines of the Ozark big-eared bat that were significant enough for the United States Fish and Wildlife Service (US FWS) to list the species as endangered in 1979. The US FWS recovery goal for the Ozark big-eared bat was an increasing or stable population over a 10 year period. To evaluate the progress towards this goal, I performed a population trend analysis over the last 10, 20, and 33 year periods. The total Oklahoma OBEB maternity population trend analysis did not show a trend but indicated a stable population for all three time periods. In addition I helped develop and test a new method for counting Ozark big-eared bats at maternity sites in Oklahoma using night vision video cameras and infrared lights as a viable alternative to current Ozark big-eared bat census techniques. The video method helps minimize human disturbance at the cave and allows people with very little experience to perform a reliable maternity count.
Author: Danyelle Nicole Lee
Publisher:
ISBN:
Category :
Languages : en
Pages : 82
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Book Description
Populations of endangered Ozark big-eared bats Corynorhinus townsendii ingens are restricted to 19 essential maternity caves or hibernacula in Oklahoma and Arkansas and total only 1,600-1,800 individuals. Effective conservation and management should encompass many aspects of the species natural history and genetics.
Author: Luke Elden Dodd
Publisher:
ISBN:
Category : Plecotus townsendii
Languages : en
Pages : 472
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Book Description
Author: Melynda Hickman
Publisher:
ISBN:
Category : Ozark big-eared bat
Languages : en
Pages : 1
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Book Description
Author:
Publisher:
ISBN:
Category : Bats
Languages : en
Pages :
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Book Description
Author: Oklahoma. Department of Wildlife Conservation
Publisher:
ISBN:
Category : Bats
Languages : en
Pages : 8
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Book Description
Author: Stephen L. Hensley
Publisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 106
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Book Description
Author: Stephen L. Hensley
Publisher:
ISBN:
Category : Endangered species
Languages : en
Pages :
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Book Description
Author: Traci Ann Wethington
Publisher:
ISBN:
Category :
Languages : en
Pages : 106
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
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Book Description
This document is one in a series of U.S. Army Engineer Research and Development Center (ERDC) technical notes produced 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 technical note provides 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 another technical note (ERDC TN-EMRRP-SI-24) that presents an overview of general habitat requirements, impacts, and management needs for these species. Although Townsend's big-eared bat (Corynorhinus townsendii) consists of five subspecies, this document focuses on the Ozark (C t. ingens) and Virginia (C. t. virginianus) big-eared bats because of their federally endangered status. The ecology, legal status, potential impacts, and management guidelines are described primarily for these eastern subspecies.
