Effects of high density on spacing behaviour and reproduction in Akodon azarae: A fencing experiment

Autores
Avila, Ana Belen; Bonatto, Maria Florencia; Priotto, Jose Waldemar; Steinmann, Andrea Rosa
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We studied the short term spacing behavioural responses of Pampean grassland mouse (males exhibit a fusion spatial response.Akodon azarae) with regard to population density in four 0.25 ha enclosures (two control and two experimental) in the 2011 breeding season. Based on the hypothesis that A. azarae breeding females exhibit spacing behaviour, and breeding males show a fusion spatial response, we tested the following predictions: (1) home range size and intrasexual overlap degree of females are independent of population density values; (2) at high population density, home range size of males decreases and the intrasexual home range overlap degree increases. To determine if female reproductive success decreases at high population density, we analyzed pregnancy rate, size and weight of litters, and period until fecundation in both low and high enclosure population density. We found that both males and females varied their home range size in relation to population density. Although male home ranges were always bigger than those of females in populations with high density, home range sizes of both sexes decreased. Females kept exclusive home ranges independent of density values meanwhile males decreased home range overlap in high breeding density populations. Although females produced litters of similar size in both treatments, weight of litter, pregnant rate and period until fecundation varied in relation to population density. Our results did not support the hypothesis that at high density females of A. azarae exhibit spacing behaviour neither that males exhibit a fusion spatial response.
Fil: Avila, Ana Belen. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto; Argentina
Fil: Bonatto, Maria Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto; Argentina
Fil: Priotto, Jose Waldemar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto; Argentina
Fil: Steinmann, Andrea Rosa. Universidad Nacional de Río Cuarto; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Density-Effect
Neotropical Rodents
Reproductive Delay
Spacing Behaviour
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/38004
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effects of high density on spacing behaviour and reproduction in Akodon azarae: A fencing experimentAvila, Ana BelenBonatto, Maria FlorenciaPriotto, Jose WaldemarSteinmann, Andrea RosaDensity-EffectNeotropical RodentsReproductive DelaySpacing Behaviourhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1We studied the short term spacing behavioural responses of Pampean grassland mouse (males exhibit a fusion spatial response.Akodon azarae) with regard to population density in four 0.25 ha enclosures (two control and two experimental) in the 2011 breeding season. Based on the hypothesis that A. azarae breeding females exhibit spacing behaviour, and breeding males show a fusion spatial response, we tested the following predictions: (1) home range size and intrasexual overlap degree of females are independent of population density values; (2) at high population density, home range size of males decreases and the intrasexual home range overlap degree increases. To determine if female reproductive success decreases at high population density, we analyzed pregnancy rate, size and weight of litters, and period until fecundation in both low and high enclosure population density. We found that both males and females varied their home range size in relation to population density. Although male home ranges were always bigger than those of females in populations with high density, home range sizes of both sexes decreased. Females kept exclusive home ranges independent of density values meanwhile males decreased home range overlap in high breeding density populations. Although females produced litters of similar size in both treatments, weight of litter, pregnant rate and period until fecundation varied in relation to population density. Our results did not support the hypothesis that at high density females of A. azarae exhibit spacing behaviour neither that males exhibit a fusion spatial response.Fil: Avila, Ana Belen. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto; ArgentinaFil: Bonatto, Maria Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto; ArgentinaFil: Priotto, Jose Waldemar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto; ArgentinaFil: Steinmann, Andrea Rosa. Universidad Nacional de Río Cuarto; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaGauthier-villars/editions Elsevier2016-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/38004Avila, Ana Belen; Bonatto, Maria Florencia; Priotto, Jose Waldemar; Steinmann, Andrea Rosa; Effects of high density on spacing behaviour and reproduction in Akodon azarae: A fencing experiment; Gauthier-villars/editions Elsevier; Acta Oecologica; 70; 1-2016; 67-731146-609XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1146609X15300515info:eu-repo/semantics/altIdentifier/doi/10.1016/j.actao.2015.12.001info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:06:02Zoai:ri.conicet.gov.ar:11336/38004instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:06:03.104CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of high density on spacing behaviour and reproduction in Akodon azarae: A fencing experiment
title Effects of high density on spacing behaviour and reproduction in Akodon azarae: A fencing experiment
spellingShingle Effects of high density on spacing behaviour and reproduction in Akodon azarae: A fencing experiment
Avila, Ana Belen
Density-Effect
Neotropical Rodents
Reproductive Delay
Spacing Behaviour
title_short Effects of high density on spacing behaviour and reproduction in Akodon azarae: A fencing experiment
title_full Effects of high density on spacing behaviour and reproduction in Akodon azarae: A fencing experiment
title_fullStr Effects of high density on spacing behaviour and reproduction in Akodon azarae: A fencing experiment
title_full_unstemmed Effects of high density on spacing behaviour and reproduction in Akodon azarae: A fencing experiment
title_sort Effects of high density on spacing behaviour and reproduction in Akodon azarae: A fencing experiment
dc.creator.none.fl_str_mv Avila, Ana Belen
Bonatto, Maria Florencia
Priotto, Jose Waldemar
Steinmann, Andrea Rosa
author Avila, Ana Belen
author_facet Avila, Ana Belen
Bonatto, Maria Florencia
Priotto, Jose Waldemar
Steinmann, Andrea Rosa
author_role author
author2 Bonatto, Maria Florencia
Priotto, Jose Waldemar
Steinmann, Andrea Rosa
author2_role author
author
author
dc.subject.none.fl_str_mv Density-Effect
Neotropical Rodents
Reproductive Delay
Spacing Behaviour
topic Density-Effect
Neotropical Rodents
Reproductive Delay
Spacing Behaviour
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We studied the short term spacing behavioural responses of Pampean grassland mouse (males exhibit a fusion spatial response.Akodon azarae) with regard to population density in four 0.25 ha enclosures (two control and two experimental) in the 2011 breeding season. Based on the hypothesis that A. azarae breeding females exhibit spacing behaviour, and breeding males show a fusion spatial response, we tested the following predictions: (1) home range size and intrasexual overlap degree of females are independent of population density values; (2) at high population density, home range size of males decreases and the intrasexual home range overlap degree increases. To determine if female reproductive success decreases at high population density, we analyzed pregnancy rate, size and weight of litters, and period until fecundation in both low and high enclosure population density. We found that both males and females varied their home range size in relation to population density. Although male home ranges were always bigger than those of females in populations with high density, home range sizes of both sexes decreased. Females kept exclusive home ranges independent of density values meanwhile males decreased home range overlap in high breeding density populations. Although females produced litters of similar size in both treatments, weight of litter, pregnant rate and period until fecundation varied in relation to population density. Our results did not support the hypothesis that at high density females of A. azarae exhibit spacing behaviour neither that males exhibit a fusion spatial response.
Fil: Avila, Ana Belen. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto; Argentina
Fil: Bonatto, Maria Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto; Argentina
Fil: Priotto, Jose Waldemar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto; Argentina
Fil: Steinmann, Andrea Rosa. Universidad Nacional de Río Cuarto; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description We studied the short term spacing behavioural responses of Pampean grassland mouse (males exhibit a fusion spatial response.Akodon azarae) with regard to population density in four 0.25 ha enclosures (two control and two experimental) in the 2011 breeding season. Based on the hypothesis that A. azarae breeding females exhibit spacing behaviour, and breeding males show a fusion spatial response, we tested the following predictions: (1) home range size and intrasexual overlap degree of females are independent of population density values; (2) at high population density, home range size of males decreases and the intrasexual home range overlap degree increases. To determine if female reproductive success decreases at high population density, we analyzed pregnancy rate, size and weight of litters, and period until fecundation in both low and high enclosure population density. We found that both males and females varied their home range size in relation to population density. Although male home ranges were always bigger than those of females in populations with high density, home range sizes of both sexes decreased. Females kept exclusive home ranges independent of density values meanwhile males decreased home range overlap in high breeding density populations. Although females produced litters of similar size in both treatments, weight of litter, pregnant rate and period until fecundation varied in relation to population density. Our results did not support the hypothesis that at high density females of A. azarae exhibit spacing behaviour neither that males exhibit a fusion spatial response.
publishDate 2016
dc.date.none.fl_str_mv 2016-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/38004
Avila, Ana Belen; Bonatto, Maria Florencia; Priotto, Jose Waldemar; Steinmann, Andrea Rosa; Effects of high density on spacing behaviour and reproduction in Akodon azarae: A fencing experiment; Gauthier-villars/editions Elsevier; Acta Oecologica; 70; 1-2016; 67-73
1146-609X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/38004
identifier_str_mv Avila, Ana Belen; Bonatto, Maria Florencia; Priotto, Jose Waldemar; Steinmann, Andrea Rosa; Effects of high density on spacing behaviour and reproduction in Akodon azarae: A fencing experiment; Gauthier-villars/editions Elsevier; Acta Oecologica; 70; 1-2016; 67-73
1146-609X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1146609X15300515
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.actao.2015.12.001
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Gauthier-villars/editions Elsevier
publisher.none.fl_str_mv Gauthier-villars/editions Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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