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Birth date predicts alternative life-history pathways in a fish with sequential reproductive tactics

2015Journal article Restricted access
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dc.contributor.authorFagundes, Teresa
dc.contributor.authorSimões, Mariana G.
dc.contributor.authorSaraiva, João Luis Vargas de Almeida
dc.contributor.authorRos, Albert F. H.
dc.contributor.authorGonçalves, David
dc.contributor.authorOliveira, Rui Filipe
dc.date.accessioned2016-01-30T12:35:22Z
dc.date.available2016-01-30T12:35:22Z
dc.date.issued2015
dc.description.abstract1. In species with plastic expression of alternative reproductive tactics (ARTs), individuals of the same sex, usually males, can adopt different reproductive tactics depending on factors such as body size. 2. The ‘birth date hypothesis’ proposes that condition-dependent expression of ARTs may ultimately depend on birth date, because individuals born at different times of the year may achieve different sizes and express different reproductive tactics accordingly. However, this has rarely been tested. 3. Here, we tested this hypothesis in a fish with ARTs, the peacock blenny (Salaria pavo). A long-term (6 years) mark–recapture study demonstrated that ARTs in the peacock blenny were sequential and that males may follow at least two alternative life-history pathways: a nestholder pathway, in which males express the nest-holder tactic from their first breeding season onwards, and a parasitic pathway, where males reproduce on their first breeding season as sneaker males and subsequently as nest-holders. 4. We have found evidence of a birth date effect on the expression of ARTs in the peacock blenny. Males following the nest-holder pathway are born earlier and are larger at the first breeding season than males following the parasitic pathway, but they have similar growth curves. 5. The mechanisms underlying a birth date effect are far from clear and might be diverse. We have not found support for a mechanism of body size threshold triggering sexual maturation and subsequent ARTs. A mechanism of tactic determination that is strictly based on timing of first maturation is also unlikely. 6. A proxy of lifetime reproductive success shows crossing (body size associated) fitness curves for the two main life-history pathways.pt_PT
dc.description.sponsorshipFundação para a Ciência e a Tecnologia (FCT)pt_PT
dc.identifier.citationFunctional Ecology, 29, 1533–1542. doi: 10.1111/1365-2435.12465pt_PT
dc.identifier.doi10.1111/1365-2435.12465pt_PT
dc.identifier.issn0269-8463
dc.identifier.urihttp://hdl.handle.net/10400.12/4310
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWiley-Blackwellpt_PT
dc.relationHormones and life-history trade-offs and plasticity: a study on alternative reproductive tactics in blenniid fish
dc.relationMolecular mechanisms and evolutionary implications of social plasticity
dc.relationNew compatible solutes from thermophiles and hyperthermophiles: screening, identification and physiological role
dc.relationECOLOGIA COMPORTAMENTAL DE UMA POPULAÇÃO DE SALARIA PAVO COM TÁCTICAS DE REPRODUÇÃO ALTERNATIVAS E INVERSÃO DE PAPEIS SEXUAIS
dc.relationVARIAÇÃO INTER-POPULACIONAL NO COMPORTAMENTO REPRODUTOR DE SALARIA PAVO PISCES: BLENNIIDAE
dc.relationROLE OF ANDROGENS IN THE REGULATION OF LIFE-HISTORY TRADE-OFFS IN THE ROCK-POOL BLENNY
dc.subjectAlternative life historiespt_PT
dc.subjectAlternative reproductive tacticspt_PT
dc.subjectBirth date effectpt_PT
dc.subjectBlennypt_PT
dc.subjectMark–recapture studypt_PT
dc.subjectNest-holderpt_PT
dc.subjectSneakerpt_PT
dc.titleBirth date predicts alternative life-history pathways in a fish with sequential reproductive tacticspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleHormones and life-history trade-offs and plasticity: a study on alternative reproductive tactics in blenniid fish
oaire.awardTitleMolecular mechanisms and evolutionary implications of social plasticity
oaire.awardTitleNew compatible solutes from thermophiles and hyperthermophiles: screening, identification and physiological role
oaire.awardTitleECOLOGIA COMPORTAMENTAL DE UMA POPULAÇÃO DE SALARIA PAVO COM TÁCTICAS DE REPRODUÇÃO ALTERNATIVAS E INVERSÃO DE PAPEIS SEXUAIS
oaire.awardTitleVARIAÇÃO INTER-POPULACIONAL NO COMPORTAMENTO REPRODUTOR DE SALARIA PAVO PISCES: BLENNIIDAE
oaire.awardTitleROLE OF ANDROGENS IN THE REGULATION OF LIFE-HISTORY TRADE-OFFS IN THE ROCK-POOL BLENNY
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI/POCTI%2FBSE%2F38395%2F2001/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FMAR%2F71351%2F2006/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/EXCL%2FBIA-ANM%2F0549%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI/POCTI%2FBIO%2F42331%2F2001/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F6502%2F2001/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F10764%2F2002/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F7143%2F2001/PT
oaire.citation.conferencePlaceHobokenpt_PT
oaire.citation.endPage1542pt_PT
oaire.citation.startPage1533pt_PT
oaire.citation.titleFunctional Ecologypt_PT
oaire.citation.volume29pt_PT
oaire.fundingStreamPOCI
oaire.fundingStream3599-PPCDT
oaire.fundingStream3599-PPCDT
oaire.fundingStreamPOCI
project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
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project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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