Bat use of abandoned mines throughout Nevada

Abstract Abandoned mines offer important roosting habitat for several species of bats throughout the western United States. Currently, abandoned mine reclamation programs are tasked with closing abandoned mines to ameliorate safety, health, and environmental hazards found in and around these sites....

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Main Authors: Megan L. Moran, Janet C. Steven, Jason A. Williams, Richard E. Sherwin
Format: Article
Language:English
Published: Wiley 2023-09-01
Series:Wildlife Society Bulletin
Subjects:
Online Access:https://doi.org/10.1002/wsb.1468
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author Megan L. Moran
Janet C. Steven
Jason A. Williams
Richard E. Sherwin
author_facet Megan L. Moran
Janet C. Steven
Jason A. Williams
Richard E. Sherwin
author_sort Megan L. Moran
collection DOAJ
description Abstract Abandoned mines offer important roosting habitat for several species of bats throughout the western United States. Currently, abandoned mine reclamation programs are tasked with closing abandoned mines to ameliorate safety, health, and environmental hazards found in and around these sites. Without appropriate pre‐closure evaluations to determine use of mine workings prior to closure, bats that depend on abandoned mines may be negatively impacted. To mitigate impacts of abandoned mine reclamation on bats, surveyors typically conduct pre‐closure biological evaluations and recommend wildlife compatible closures (e.g., bat gates) for ecologically important sites. Due to hazardous conditions found in many abandoned mines, internal surveys cannot always be conducted, and external surveys are not reliable for determining underground habitat or inferring past, future, or potential use of mines by bats when they are absent during external surveys. The purpose of our study was to use internal mine surveys to examine relationships between abandoned mine use by bats and characteristics of the mine and landscape, including portal area and shape, number of portals, mine depth, elevation, proximity to water and land use type. We found that surface features including land use type, distance to water, and elevation were associated with bat use, as were several mine features including depth of workings and portal shape. To best conserve sensitive species of bats, it is essential that pre‐closure biological evaluations be as detailed as possible to enhance biological understanding of species' roosting associations and distribution throughout the landscape. Further information will best facilitate development of ecologically sound closure recommendations for abandoned mine openings.
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spelling doaj.art-0494943f6e75485ebeca586891dd3dd02023-09-12T04:31:27ZengWileyWildlife Society Bulletin2328-55402023-09-01473n/an/a10.1002/wsb.1468Bat use of abandoned mines throughout NevadaMegan L. Moran0Janet C. Steven1Jason A. Williams2Richard E. Sherwin3Department of Organismal and Environmental Biology Christopher Newport University Newport News VA 23606 USADepartment of Organismal and Environmental Biology Christopher Newport University Newport News VA 23606 USAWestern EcoSystems Technology, Inc. Cheyenne WY 82001 USADepartment of Organismal and Environmental Biology Christopher Newport University Newport News VA 23606 USAAbstract Abandoned mines offer important roosting habitat for several species of bats throughout the western United States. Currently, abandoned mine reclamation programs are tasked with closing abandoned mines to ameliorate safety, health, and environmental hazards found in and around these sites. Without appropriate pre‐closure evaluations to determine use of mine workings prior to closure, bats that depend on abandoned mines may be negatively impacted. To mitigate impacts of abandoned mine reclamation on bats, surveyors typically conduct pre‐closure biological evaluations and recommend wildlife compatible closures (e.g., bat gates) for ecologically important sites. Due to hazardous conditions found in many abandoned mines, internal surveys cannot always be conducted, and external surveys are not reliable for determining underground habitat or inferring past, future, or potential use of mines by bats when they are absent during external surveys. The purpose of our study was to use internal mine surveys to examine relationships between abandoned mine use by bats and characteristics of the mine and landscape, including portal area and shape, number of portals, mine depth, elevation, proximity to water and land use type. We found that surface features including land use type, distance to water, and elevation were associated with bat use, as were several mine features including depth of workings and portal shape. To best conserve sensitive species of bats, it is essential that pre‐closure biological evaluations be as detailed as possible to enhance biological understanding of species' roosting associations and distribution throughout the landscape. Further information will best facilitate development of ecologically sound closure recommendations for abandoned mine openings.https://doi.org/10.1002/wsb.1468abandoned minesbatsChiropteragatingmine reclamationNevada
spellingShingle Megan L. Moran
Janet C. Steven
Jason A. Williams
Richard E. Sherwin
Bat use of abandoned mines throughout Nevada
Wildlife Society Bulletin
abandoned mines
bats
Chiroptera
gating
mine reclamation
Nevada
title Bat use of abandoned mines throughout Nevada
title_full Bat use of abandoned mines throughout Nevada
title_fullStr Bat use of abandoned mines throughout Nevada
title_full_unstemmed Bat use of abandoned mines throughout Nevada
title_short Bat use of abandoned mines throughout Nevada
title_sort bat use of abandoned mines throughout nevada
topic abandoned mines
bats
Chiroptera
gating
mine reclamation
Nevada
url https://doi.org/10.1002/wsb.1468
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AT jasonawilliams batuseofabandonedminesthroughoutnevada
AT richardesherwin batuseofabandonedminesthroughoutnevada