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Androgens and Mating Systems in Fish: Intra- and Inter-specific Analysis

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dc.contributor.authorOliveira, R. F.
dc.contributor.authorRos, A. F. H.
dc.contributor.authorHirschenhauser, K.
dc.contributor.authorCanario, Adelino V. M.
dc.date.accessioned2014-05-21T16:17:30Z
dc.date.available2014-05-21T16:17:30Z
dc.date.issued2001
dc.date.updated2014-05-14T09:16:19Z
dc.description.abstractOne of the predictions of the ‘challenge hypothesis’ (Wingfield et al., 1990) is that androgen patterns during the breeding season should vary among species according to the parenting and mating system. Here we assess this prediction of the challenge hypothesis both at the intra- and at the inter-specific level. To test the hypothesis at the inter-specific level, a literature survey on published androgen pat- terns from teleost fish with different mating systems was carried out. The results confirm the predicted effect of mating system on andro- gen levels. To test the hypothesis at an intra-specific level, a species with flexible reproductive strategies (i.e. monogamy vs. polygyny), the Saint Peter’s fish was studied. Polygynous males had higher 11- ketotestosterone levels. However, males implanted with methyl-tes- tosterone did not became polygynous and the variation of the ten- dency to desert their pair mates was better explained by the repro- ductive state of the female partner. This result stresses the point that the effects of behaviour on hormones cannot be considered without respect to the social context.pt_PT
dc.identifier.citationOliveira, R. F.; Ros, A. F. H.; Hirschenhauser, K.; Canario, A. V. M.Androgens and Mating Systems in Fish: Intra- and Inter-specific Analysis, In Perspective in Comparative Endocrinology Unity and Diversity, 985-993, ISBN: 978-88-3231-526-4. Sorrento (Napoli), Italy : Monduzzi Editore MEDIMOND s.r.l., 2001por
dc.identifier.issn978-88-3231-526-4
dc.identifier.otherAUT: ACA00258;
dc.identifier.urihttp://hdl.handle.net/10400.1/4031
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherMonduzzi Editorepor
dc.subjectandrogensen_US
dc.titleAndrogens and Mating Systems in Fish: Intra- and Inter-specific Analysispor
dc.typeconference object
dspace.entity.typePublication
oaire.citation.endPage993por
oaire.citation.startPage985por
oaire.citation.titlePerspective in Comparative Endocrinology: Unity and Diversity. Proceedings of the 14th International Congress of Comparative Endocrinologypor
person.familyNameCanario
person.givenNameAdelino
person.identifier143624
person.identifier.ciencia-id1F1E-D3B3-F804
person.identifier.orcid0000-0002-6244-6468
person.identifier.ridC-7942-2009
person.identifier.scopus-author-id56568523700
rcaap.rightsrestrictedAccesspor
rcaap.typeconferenceObjectpor
relation.isAuthorOfPublication5f6e51ee-9113-469e-8b9e-f30f2d452521
relation.isAuthorOfPublication.latestForDiscovery5f6e51ee-9113-469e-8b9e-f30f2d452521

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