Aggression and dominance in cichlids in resident-intruder tests: the role of environmental enrichment
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Neotropical ichthyology (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000300007 |
Resumo: | When establishing dominance residents have a greater likelihood to dominate intruders than vice versa, partially because the resident has more to loose that the intruder has to win. This is known as the prior residency effect. In environmentally rich environments this effect should be stronger than in poor environments. Recently Kadry & Barreto (2010, Neotrop Ichthyol 8: 329-332) tested this in the pearl cichlid Geophagus brasiliensis (17 test pairs) and reported that environmental enrichment led to a reduction of aggression. We here present data on four other cichlids (332 test pairs) showing a stronger prior residency effect in enriched conditions, and, for two species, an increase in aggression. We discuss possible reasons for the differences between studies, focussing on the relationship between aggression and dominance and sample size effects. |
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Aggression and dominance in cichlids in resident-intruder tests: the role of environmental enrichmentEnvironmental enrichmentPay-off asymmetry hypothesisPrior residency effectResource holding powerTerritorialityWhen establishing dominance residents have a greater likelihood to dominate intruders than vice versa, partially because the resident has more to loose that the intruder has to win. This is known as the prior residency effect. In environmentally rich environments this effect should be stronger than in poor environments. Recently Kadry & Barreto (2010, Neotrop Ichthyol 8: 329-332) tested this in the pearl cichlid Geophagus brasiliensis (17 test pairs) and reported that environmental enrichment led to a reduction of aggression. We here present data on four other cichlids (332 test pairs) showing a stronger prior residency effect in enriched conditions, and, for two species, an increase in aggression. We discuss possible reasons for the differences between studies, focussing on the relationship between aggression and dominance and sample size effects.Sociedade Brasileira de Ictiologia2011-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000300007Neotropical Ichthyology v.9 n.3 2011reponame:Neotropical ichthyology (Online)instname:Sociedade Brasileira de Ictiologia (SBI)instacron:SBI10.1590/S1679-62252011005000031info:eu-repo/semantics/openAccessNijman,VincentHeuts,Boudewijn A.eng2011-09-29T00:00:00Zoai:scielo:S1679-62252011000300007Revistahttp://www.ufrgs.br/ni/https://old.scielo.br/oai/scielo-oai.php||neoichth@nupelia.uem.br1982-02241679-6225opendoar:2011-09-29T00:00Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)false |
dc.title.none.fl_str_mv |
Aggression and dominance in cichlids in resident-intruder tests: the role of environmental enrichment |
title |
Aggression and dominance in cichlids in resident-intruder tests: the role of environmental enrichment |
spellingShingle |
Aggression and dominance in cichlids in resident-intruder tests: the role of environmental enrichment Nijman,Vincent Environmental enrichment Pay-off asymmetry hypothesis Prior residency effect Resource holding power Territoriality |
title_short |
Aggression and dominance in cichlids in resident-intruder tests: the role of environmental enrichment |
title_full |
Aggression and dominance in cichlids in resident-intruder tests: the role of environmental enrichment |
title_fullStr |
Aggression and dominance in cichlids in resident-intruder tests: the role of environmental enrichment |
title_full_unstemmed |
Aggression and dominance in cichlids in resident-intruder tests: the role of environmental enrichment |
title_sort |
Aggression and dominance in cichlids in resident-intruder tests: the role of environmental enrichment |
author |
Nijman,Vincent |
author_facet |
Nijman,Vincent Heuts,Boudewijn A. |
author_role |
author |
author2 |
Heuts,Boudewijn A. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Nijman,Vincent Heuts,Boudewijn A. |
dc.subject.por.fl_str_mv |
Environmental enrichment Pay-off asymmetry hypothesis Prior residency effect Resource holding power Territoriality |
topic |
Environmental enrichment Pay-off asymmetry hypothesis Prior residency effect Resource holding power Territoriality |
description |
When establishing dominance residents have a greater likelihood to dominate intruders than vice versa, partially because the resident has more to loose that the intruder has to win. This is known as the prior residency effect. In environmentally rich environments this effect should be stronger than in poor environments. Recently Kadry & Barreto (2010, Neotrop Ichthyol 8: 329-332) tested this in the pearl cichlid Geophagus brasiliensis (17 test pairs) and reported that environmental enrichment led to a reduction of aggression. We here present data on four other cichlids (332 test pairs) showing a stronger prior residency effect in enriched conditions, and, for two species, an increase in aggression. We discuss possible reasons for the differences between studies, focussing on the relationship between aggression and dominance and sample size effects. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000300007 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000300007 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1679-62252011005000031 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Ictiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ictiologia |
dc.source.none.fl_str_mv |
Neotropical Ichthyology v.9 n.3 2011 reponame:Neotropical ichthyology (Online) instname:Sociedade Brasileira de Ictiologia (SBI) instacron:SBI |
instname_str |
Sociedade Brasileira de Ictiologia (SBI) |
instacron_str |
SBI |
institution |
SBI |
reponame_str |
Neotropical ichthyology (Online) |
collection |
Neotropical ichthyology (Online) |
repository.name.fl_str_mv |
Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI) |
repository.mail.fl_str_mv |
||neoichth@nupelia.uem.br |
_version_ |
1752122180040130560 |