Affiliation in the social interactions in captivity of the torch tail rat, Trinomys yonenagae (Rodentia: Echimyidae)

Detalhes bibliográficos
Autor(a) principal: Freitas, Jorge Nei Silva de
Data de Publicação: 2010
Outros Autores: Carvalho, Luciano Augusto da Silva, El-Hani, Charbel Niño, Rocha, Pedro Luís Bernardo da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/6069
Resumo: Trabalho completo: acesso restrito, p. 105–112
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spelling Freitas, Jorge Nei Silva deCarvalho, Luciano Augusto da SilvaEl-Hani, Charbel NiñoRocha, Pedro Luís Bernardo daFreitas, Jorge Nei Silva deCarvalho, Luciano Augusto da SilvaEl-Hani, Charbel NiñoRocha, Pedro Luís Bernardo da2012-06-04T19:25:47Z20100289-0771http://www.repositorio.ufba.br/ri/handle/ri/6069v. 28, n. 1Trabalho completo: acesso restrito, p. 105–112In a previous paper, we measured the affiliation between male individuals of Trinomys yonenagae and concluded that the intensity of affiliation was high and did not differ between animals from the same social group and from different social groups. In this paper, we report the results obtained with the same experimental procedure with female individuals. We also discuss sexual differences in the social interaction of this species. The experimental procedure was based on 40-min encounters between residents, which remained alone in an arena for 24 h, and introduced intruders, in a round-robin design. We quantified one variable indicative of activity level (number of squares crossed), one indicative of anxiety (time in marginal squares), three indicative of affiliation (number of physical contacts, mean distance between rodents, and total duration of physical contact), and the number of sound emissions. No aggressive behaviors were exhibited. The results indicate that there is a high level of affiliation mediated by acoustic communication both for males and females and that no anxiety is associated with social context, especially in females. The evolution of sociality in T. yonenagae was probably linked to an increase of tolerance especially among adult females. We also suggest that predation was a stronger selective pressure than resource availability in the evolution of sociality in this species.Submitted by Bruna Lessa (lessbruna@gmail.com) on 2012-06-04T19:25:47Z No. of bitstreams: 1 (57)fulltext.pdf: 215107 bytes, checksum: c7f5e1c44b7c40dd6cc694b3505c4865 (MD5)Made available in DSpace on 2012-06-04T19:25:47Z (GMT). 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dc.title.pt_BR.fl_str_mv Affiliation in the social interactions in captivity of the torch tail rat, Trinomys yonenagae (Rodentia: Echimyidae)
dc.title.alternative.pt_BR.fl_str_mv Journal of Ethology
title Affiliation in the social interactions in captivity of the torch tail rat, Trinomys yonenagae (Rodentia: Echimyidae)
spellingShingle Affiliation in the social interactions in captivity of the torch tail rat, Trinomys yonenagae (Rodentia: Echimyidae)
Freitas, Jorge Nei Silva de
Sociality
Rodents
Trinomys yonenagae
Sexual differences
Predation
Evolution
title_short Affiliation in the social interactions in captivity of the torch tail rat, Trinomys yonenagae (Rodentia: Echimyidae)
title_full Affiliation in the social interactions in captivity of the torch tail rat, Trinomys yonenagae (Rodentia: Echimyidae)
title_fullStr Affiliation in the social interactions in captivity of the torch tail rat, Trinomys yonenagae (Rodentia: Echimyidae)
title_full_unstemmed Affiliation in the social interactions in captivity of the torch tail rat, Trinomys yonenagae (Rodentia: Echimyidae)
title_sort Affiliation in the social interactions in captivity of the torch tail rat, Trinomys yonenagae (Rodentia: Echimyidae)
author Freitas, Jorge Nei Silva de
author_facet Freitas, Jorge Nei Silva de
Carvalho, Luciano Augusto da Silva
El-Hani, Charbel Niño
Rocha, Pedro Luís Bernardo da
author_role author
author2 Carvalho, Luciano Augusto da Silva
El-Hani, Charbel Niño
Rocha, Pedro Luís Bernardo da
author2_role author
author
author
dc.contributor.author.fl_str_mv Freitas, Jorge Nei Silva de
Carvalho, Luciano Augusto da Silva
El-Hani, Charbel Niño
Rocha, Pedro Luís Bernardo da
Freitas, Jorge Nei Silva de
Carvalho, Luciano Augusto da Silva
El-Hani, Charbel Niño
Rocha, Pedro Luís Bernardo da
dc.subject.por.fl_str_mv Sociality
Rodents
Trinomys yonenagae
Sexual differences
Predation
Evolution
topic Sociality
Rodents
Trinomys yonenagae
Sexual differences
Predation
Evolution
description Trabalho completo: acesso restrito, p. 105–112
publishDate 2010
dc.date.issued.fl_str_mv 2010
dc.date.accessioned.fl_str_mv 2012-06-04T19:25:47Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/6069
dc.identifier.issn.none.fl_str_mv 0289-0771
dc.identifier.number.pt_BR.fl_str_mv v. 28, n. 1
identifier_str_mv 0289-0771
v. 28, n. 1
url http://www.repositorio.ufba.br/ri/handle/ri/6069
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.pt_BR.fl_str_mv http://www.springerlink.com/content/c7w22q6403222132/fulltext.pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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