The intensity of male-male interactions declines in highland songbird populations

Elevation gradients are associated with sharp environmental clines that play a crucial role in the phenotypic diversification of animal populations. In a variety of organisms, the reproductive output of females declines with elevation in parallel to the drop in environmental productivity and shorten...

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Detalles Bibliográficos
Autores: Bastianelli, Giulia, Seoane, Javier, Álvarez Blanco, Paloma, Laiolo, Paola
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2015
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/131766
Acceso en línea:http://hdl.handle.net/10261/131766
Access Level:acceso abierto
Palabra clave:Birdsong
Elevational gradient
Sexual selection
Territoriality
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spelling The intensity of male-male interactions declines in highland songbird populationsBastianelli, GiuliaSeoane, JavierÁlvarez Blanco, PalomaLaiolo, PaolaBirdsongElevational gradientSexual selectionTerritorialityElevation gradients are associated with sharp environmental clines that play a crucial role in the phenotypic diversification of animal populations. In a variety of organisms, the reproductive output of females declines with elevation in parallel to the drop in environmental productivity and shortening of the breeding season. Little evidence is available on male traits associated with reproductive activities, such as territorial defence and signalling, which may decline because of the low economic defendability of resources and the selective advantage of investing in parental rather than mating (e.g. signalling, chasing intruders) effort in such conditions. Along a broad elevational gradient, we investigated variation in the intensity of territorial defence and sexual signalling in males of the water pipit Anthus spinoletta exposed to song playbacks simulating the territorial intrusion of a conspecific. We found that birds from the lower limits of the species distribution approached song stimuli more closely than those from the upper limits. Moreover, physically challenging songs (broad frequency bandwidths and fast trills) elicited a closer approach, and low elevation birds uttered songs ending with the broadest bandwidths. Other responses to the intrusion, such as the number of songs uttered or the latency to approach, exhibited seasonal or spatial variation irrespective of elevation. This study illustrates the decline of some trait associated with aggressive territorial behaviours during male-male conflicts along elevation, and points to the allocation in sexual signalling and motor constraints to signal production, as potential mechanisms underlying it.The research was supported by the Ministry of Economy and Competitiveness (project CGL2011-2817 to PL, FPI grant BES-2012-053472 to GB)Peer reviewedSpringer NatureMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201620162015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/131766reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1007/s00265-015-1961-6Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1317662026-05-22T06:33:51Z
dc.title.none.fl_str_mv The intensity of male-male interactions declines in highland songbird populations
title The intensity of male-male interactions declines in highland songbird populations
spellingShingle The intensity of male-male interactions declines in highland songbird populations
Bastianelli, Giulia
Birdsong
Elevational gradient
Sexual selection
Territoriality
title_short The intensity of male-male interactions declines in highland songbird populations
title_full The intensity of male-male interactions declines in highland songbird populations
title_fullStr The intensity of male-male interactions declines in highland songbird populations
title_full_unstemmed The intensity of male-male interactions declines in highland songbird populations
title_sort The intensity of male-male interactions declines in highland songbird populations
dc.creator.none.fl_str_mv Bastianelli, Giulia
Seoane, Javier
Álvarez Blanco, Paloma
Laiolo, Paola
author Bastianelli, Giulia
author_facet Bastianelli, Giulia
Seoane, Javier
Álvarez Blanco, Paloma
Laiolo, Paola
author_role author
author2 Seoane, Javier
Álvarez Blanco, Paloma
Laiolo, Paola
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Birdsong
Elevational gradient
Sexual selection
Territoriality
topic Birdsong
Elevational gradient
Sexual selection
Territoriality
description Elevation gradients are associated with sharp environmental clines that play a crucial role in the phenotypic diversification of animal populations. In a variety of organisms, the reproductive output of females declines with elevation in parallel to the drop in environmental productivity and shortening of the breeding season. Little evidence is available on male traits associated with reproductive activities, such as territorial defence and signalling, which may decline because of the low economic defendability of resources and the selective advantage of investing in parental rather than mating (e.g. signalling, chasing intruders) effort in such conditions. Along a broad elevational gradient, we investigated variation in the intensity of territorial defence and sexual signalling in males of the water pipit Anthus spinoletta exposed to song playbacks simulating the territorial intrusion of a conspecific. We found that birds from the lower limits of the species distribution approached song stimuli more closely than those from the upper limits. Moreover, physically challenging songs (broad frequency bandwidths and fast trills) elicited a closer approach, and low elevation birds uttered songs ending with the broadest bandwidths. Other responses to the intrusion, such as the number of songs uttered or the latency to approach, exhibited seasonal or spatial variation irrespective of elevation. This study illustrates the decline of some trait associated with aggressive territorial behaviours during male-male conflicts along elevation, and points to the allocation in sexual signalling and motor constraints to signal production, as potential mechanisms underlying it.
publishDate 2015
dc.date.none.fl_str_mv 2015
2016
2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/131766
url http://hdl.handle.net/10261/131766
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1007/s00265-015-1961-6
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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