Kin-bias, breeding site selection and female fitness in a cannibalistic Neotropical frog

dc.contributorCornell Univ
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.creatorMuralidhar, P.
dc.creatorSa, F. P. de [UNESP]
dc.creatorHaddad, C. F. B. [UNESP]
dc.creatorZamudio, K. R.
dc.date2014-12-03T13:11:05Z
dc.date2014-12-03T13:11:05Z
dc.date2014-02-01
dc.date.accessioned2023-09-09T10:05:16Z
dc.date.available2023-09-09T10:05:16Z
dc.identifierhttp://dx.doi.org/10.1111/mec.12592
dc.identifierMolecular Ecology. Hoboken: Wiley-blackwell, v. 23, n. 2, p. 453-463, 2014.
dc.identifier0962-1083
dc.identifierhttp://hdl.handle.net/11449/112820
dc.identifier10.1111/mec.12592
dc.identifierWOS:000329254300016
dc.identifier0458077399058762
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8762439
dc.descriptionResource availability influences sexual selection within populations and determines whether behaviours such as territoriality or resource sharing are adaptive. In Thoropa taophora, a frog endemic to the Atlantic Coastal Rainforest of Brazil, males compete for and defend limited breeding sites while females often share breeding sites with other females; however, sharing breeding sites may involve costs due to cannibalism by conspecific tadpoles. We studied a breeding population of T.taophora to determine (i) whether this species exhibits polygynous mating involving female choice for territorial males and limited breeding resources; (ii) whether limited breeding resources create the potential for male-male cooperation in defence of neighbouring territories; and (iii) whether females sharing breeding sites exhibit kin-biased breeding site choice, possibly driven by fitness losses due to cannibalism among offspring of females sharing sites. We used microsatellites to reconstruct parentage and quantify relatedness at eight breeding sites in our focal population, where these sites are scarce, and in a second population, where sites are abundant. We found that at localities where the appropriate sites for reproduction are spatially limited, the mating system for this species is polygynous, with typically two females sharing a breeding site with a male. We also found that females exhibit negative kin-bias in their choice of breeding sites, potentially to maximize their inclusive fitness by avoiding tadpole cannibalism of highly related kin. Our results indicate that male territorial defence and female site sharing are likely important components of this mating system, and we propose that kinship-dependent avoidance in mating strategies may be more general than previously realized.
dc.descriptionEinhorn Discovery Grant from Cornell University College of Arts and Sciences
dc.descriptionMellon Undergraduate Research Grant from the Cornell University College of Agriculture and Life Sciences
dc.descriptionNational Science Foundation REU award
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCornell Univ, Dept Ecol & Evolutionary Biol, Ithaca, NY 14853 USA
dc.descriptionUniv Estadual Paulista UNESP, Inst Biociencias, Dept Zool, BR-13506900 Sao Paulo, Brazil
dc.descriptionUniv Estadual Paulista UNESP, Inst Biociencias, Dept Zool, BR-13506900 Sao Paulo, Brazil
dc.descriptionFAPESP: 08/50928-1
dc.descriptionFAPESP: 12/00205-9
dc.format453-463
dc.languageeng
dc.publisherWiley-Blackwell
dc.relationMolecular Ecology
dc.relation6.131
dc.relation3,283
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectAtlantic Coastal Rainforest
dc.subjectcannibalism
dc.subjectkin selection
dc.subjectterritoriality
dc.subjectThoropa taophora
dc.titleKin-bias, breeding site selection and female fitness in a cannibalistic Neotropical frog
dc.typeArtigo


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