Long-term bat abundance in sagebrush steppe

Abstract Bats of western North America face many threats, but little is known about current population changes in these mammals. We compiled 283 surveys from 49 hibernacula over 32 years to investigate population changes of Townsend’s big-eared bats (Corynorhinus townsendii townsendii) and western s...

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Autores principales: Jericho C. Whiting, Bill Doering, Gary Wright, Devin K. Englestead, Justin A. Frye, Todd Stefanic, Brent J. Sewall
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Lenguaje:EN
Publicado: Nature Portfolio 2018
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Acceso en línea:https://doaj.org/article/d6c9724511644a9fab6e9786023045c4
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spelling oai:doaj.org-article:d6c9724511644a9fab6e9786023045c42021-12-02T11:40:54ZLong-term bat abundance in sagebrush steppe10.1038/s41598-018-30402-z2045-2322https://doaj.org/article/d6c9724511644a9fab6e9786023045c42018-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-30402-zhttps://doaj.org/toc/2045-2322Abstract Bats of western North America face many threats, but little is known about current population changes in these mammals. We compiled 283 surveys from 49 hibernacula over 32 years to investigate population changes of Townsend’s big-eared bats (Corynorhinus townsendii townsendii) and western small-footed myotis (Myotis ciliolabrum) in Idaho, USA. This area comprises some of the best bat habitat in the western USA, but is threatened by land-use change. Bats in this area also face invasion by the pathogen causing white-nose syndrome. Little is known about long-term trends of abundance of these two species. In our study, estimated population changes for Townsend’s big-eared bats varied by management area, with relative abundance increasing by 186% and 326% in two management areas, but decreasing 55% in another. For western small-footed myotis, analysis of estimated population trend was complicated by an increase in detection of 141% over winter. After accounting for differences in detection, this species declined region-wide by 63% to winter of 1998–1999. The population fully recovered by 2013–2014, likely because 12 of 23 of its hibernacula were closed to public access from 1994 to 1998. Our data clarify long-term population patterns of two bat species of conservation concern, and provide important baseline understanding of western small-footed myotis prior to the arrival of white-nose syndrome in this area.Jericho C. WhitingBill DoeringGary WrightDevin K. EnglesteadJustin A. FryeTodd StefanicBrent J. SewallNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Jericho C. Whiting
Bill Doering
Gary Wright
Devin K. Englestead
Justin A. Frye
Todd Stefanic
Brent J. Sewall
Long-term bat abundance in sagebrush steppe
description Abstract Bats of western North America face many threats, but little is known about current population changes in these mammals. We compiled 283 surveys from 49 hibernacula over 32 years to investigate population changes of Townsend’s big-eared bats (Corynorhinus townsendii townsendii) and western small-footed myotis (Myotis ciliolabrum) in Idaho, USA. This area comprises some of the best bat habitat in the western USA, but is threatened by land-use change. Bats in this area also face invasion by the pathogen causing white-nose syndrome. Little is known about long-term trends of abundance of these two species. In our study, estimated population changes for Townsend’s big-eared bats varied by management area, with relative abundance increasing by 186% and 326% in two management areas, but decreasing 55% in another. For western small-footed myotis, analysis of estimated population trend was complicated by an increase in detection of 141% over winter. After accounting for differences in detection, this species declined region-wide by 63% to winter of 1998–1999. The population fully recovered by 2013–2014, likely because 12 of 23 of its hibernacula were closed to public access from 1994 to 1998. Our data clarify long-term population patterns of two bat species of conservation concern, and provide important baseline understanding of western small-footed myotis prior to the arrival of white-nose syndrome in this area.
format article
author Jericho C. Whiting
Bill Doering
Gary Wright
Devin K. Englestead
Justin A. Frye
Todd Stefanic
Brent J. Sewall
author_facet Jericho C. Whiting
Bill Doering
Gary Wright
Devin K. Englestead
Justin A. Frye
Todd Stefanic
Brent J. Sewall
author_sort Jericho C. Whiting
title Long-term bat abundance in sagebrush steppe
title_short Long-term bat abundance in sagebrush steppe
title_full Long-term bat abundance in sagebrush steppe
title_fullStr Long-term bat abundance in sagebrush steppe
title_full_unstemmed Long-term bat abundance in sagebrush steppe
title_sort long-term bat abundance in sagebrush steppe
publisher Nature Portfolio
publishDate 2018
url https://doaj.org/article/d6c9724511644a9fab6e9786023045c4
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