Repository logo
 
Publication

Dear Enemies Elicit Lower Androgen Responses to Territorial Challenges than Unfamiliar Intruders in a Cichlid Fish

2015-09-17Journal article Open access
Simple item page
dc.contributor.authorAires, Rui F.
dc.contributor.authorOliveira, Gonçalo A.
dc.contributor.authorOliveira, Tânia F.
dc.contributor.authorRos, Albert F. H.
dc.contributor.authorOliveira, Rui F.
dc.date.accessioned2015-10-12T16:43:43Z
dc.date.available2015-10-12T16:43:43Z
dc.date.issued2015-09-17
dc.description.abstractIn many territorial species androgen hormones are known to increase in response to territorial intrusions as a way to adjust the expression of androgen-dependent behaviour to social challenges. The dear enemy effect has also been described in territorial species and posits that resident individuals show a more aggressive response to intrusions by strangers than by other territorial neighbours. Therefore, we hypothesized that the dear enemy effect may also modulate the androgen response to a territorial intrusion. Here we tested this hypothesis in male cichlid fish (Mozambique tilapia, Oreochromis mossambicus) using a paradigm of four repeated territorial intrusions, either by the same neighbour or by four different unfamiliar intruders. Neighbour intruders elicited lower aggression and a weaker androgen response than strangers on the first intrusion of the experiment. With repeated intrusions, the agonistic behaviour of the resident males against familiar intruders was similar to that displayed towards strangers. By the fourth intrusion the androgen response was significantly reduced and there was no longer a difference between the responses to the two types of intruders. These results suggest that the dear enemy effect modulates the androgen response to territorial intrusions and that repeated intrusions lead to a habituation of the androgen response.pt_PT
dc.description.sponsorshipFCT doctoral fellowships: (SFRH/BD/68528/2010, SFRH/BD/36746/2007)pt_PT
dc.identifier10.1371/journal.pone.0137705
dc.identifier.citationAires RF, Oliveira GA, Oliveira TF, Ros AFH, Oliveira RF (2015) Dear Enemies Elicit Lower Androgen Responses to Territorial Challenges than Unfamiliar Intruders in a Cichlid Fish. PLoS ONE 10(9): e0137705. doi:10.1371/journal.pone.0137705pt_PT
dc.identifier.doi10.1371/journal.pone.0137705
dc.identifier.urihttp://hdl.handle.net/10400.7/389
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherPLOSpt_PT
dc.relationMolecular mechanisms and evolutionary implications of social plasticity
dc.relation.publisherversionhttp://journals.plos.org/plosone/article?id=10.1371/journal.pone.0137705pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectandrogenspt_PT
dc.subjecturinept_PT
dc.titleDear Enemies Elicit Lower Androgen Responses to Territorial Challenges than Unfamiliar Intruders in a Cichlid Fishpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMolecular mechanisms and evolutionary implications of social plasticity
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/EXCL%2FBIA-ANM%2F0549%2F2012/PT
oaire.citation.endPage11pt_PT
oaire.citation.issue9pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titlePLOS Onept_PT
oaire.citation.volume10pt_PT
oaire.fundingStream3599-PPCDT
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublication82059d0f-2e10-410d-9df7-0253285a858c
relation.isProjectOfPublication.latestForDiscovery82059d0f-2e10-410d-9df7-0253285a858c

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
journal.pone.0137705.pdf
Size:
544.65 KB
Format:
Adobe Portable Document Format
Description:
artigo principal
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

IBB- Artigos