Response of a Specialist Bat to the Loss of a Critical Resource

Human activities have negatively impacted many species, particularly those with unique traits that restrict their use of resources and conditions to specific habitats. Unfortunately, few studies have been able to isolate the individual and combined effects of different threats on population persiste...

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Detalles Bibliográficos
Autores: Chaverri Echandi, Gloriana, Kunz, Thomas H.
Tipo de recurso: artículo
Fecha de publicación:2011
País:Costa Rica
Institución:Universidad de Costa Rica
Repositorio:Kérwá
OAI Identifier:oai:kerwa.ucr.ac.cr:10669/75127
Acceso en línea:http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0028821
https://hdl.handle.net/10669/75127
Access Level:acceso abierto
Palabra clave:Comportamiento animal
599.472 867 Chiroptera (Quirópteros, Murciélagos)
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dc.title.es_ES.fl_str_mv Response of a Specialist Bat to the Loss of a Critical Resource
title Response of a Specialist Bat to the Loss of a Critical Resource
spellingShingle Response of a Specialist Bat to the Loss of a Critical Resource
Chaverri Echandi, Gloriana
Comportamiento animal
599.472 867 Chiroptera (Quirópteros, Murciélagos)
title_short Response of a Specialist Bat to the Loss of a Critical Resource
title_full Response of a Specialist Bat to the Loss of a Critical Resource
title_fullStr Response of a Specialist Bat to the Loss of a Critical Resource
title_full_unstemmed Response of a Specialist Bat to the Loss of a Critical Resource
title_sort Response of a Specialist Bat to the Loss of a Critical Resource
dc.creator.none.fl_str_mv Chaverri Echandi, Gloriana
Kunz, Thomas H.
author Chaverri Echandi, Gloriana
author_facet Chaverri Echandi, Gloriana
Kunz, Thomas H.
author_role author
author2 Kunz, Thomas H.
author2_role author
dc.subject.es_ES.fl_str_mv Comportamiento animal
599.472 867 Chiroptera (Quirópteros, Murciélagos)
topic Comportamiento animal
599.472 867 Chiroptera (Quirópteros, Murciélagos)
description Human activities have negatively impacted many species, particularly those with unique traits that restrict their use of resources and conditions to specific habitats. Unfortunately, few studies have been able to isolate the individual and combined effects of different threats on population persistence in a natural setting, since not all organisms can be associated with discrete habitat features occurring over limited spatial scales. We present the results of a field study that examines the short-term effects of roost loss in a specialist bat using a conspicuous, easily modified resource. We mimicked roost loss in the natural habitat and monitored individuals before and after the perturbation to determine patterns of resource use, spatial movements, and group stability. Our study focused on the disc-winged bat Thyroptera tricolor, a species highly morphologically specialized for roosting in the developing furled leaves of members of the order Zingiberales. We found that the number of species used for roosting increased, that home range size increased (before: mean 0.14±SD 0.08 ha; after: 0.73±0.68 ha), and that mean association indices decreased (before: 0.95±0.10; after: 0.77±0.18) once the roosting habitat was removed. These results demonstrate that the removal of roosting resources is associated with a decrease in roost-site preferences or selectivity, an increase in mobility of individuals, and a decrease in social cohesion. These responses may reduce fitness by potentially increasing energetic expenditure, predator exposure, and a decrease in cooperative interactions. Despite these potential risks, individuals never used roost-sites other than developing furled leaves, suggesting an extreme specialization that could ultimately jeopardize the long-term persistence of this species' local populations.
publishDate 2011
dc.date.issued.none.fl_str_mv 2011-12
dc.date.accessioned.none.fl_str_mv 2018-06-29T19:36:00Z
dc.date.available.none.fl_str_mv 2018-06-29T19:36:00Z
dc.date.updated.none.fl_str_mv 2018-05-20T13:59:21Z
dc.type.none.fl_str_mv artículo original
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dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/10669/75127
dc.identifier.doi.none.fl_str_mv 10.1371/journal.pone.0028821
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https://hdl.handle.net/10669/75127
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10.1371/journal.pone.0028821
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dc.rights.none.fl_str_mv acceso abierto
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rights_invalid_str_mv acceso abierto
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dc.source.es_ES.fl_str_mv PLoS ONE, Vol 6(12), pp 1-10
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