Five new cases of paternal care in harvestmen (Arachnida : Opiliones): Implications for the evolution of male guarding in the neotropical family gonyleptidae

dc.creatorMachado, G
dc.creatorRequena, GS
dc.creatorBuzatto, BA
dc.creatorOsses, F
dc.creatorRossetto, LM
dc.date2004
dc.date2014-11-18T16:40:07Z
dc.date2015-11-26T16:57:19Z
dc.date2014-11-18T16:40:07Z
dc.date2015-11-26T16:57:19Z
dc.date.accessioned2018-03-28T23:44:51Z
dc.date.available2018-03-28T23:44:51Z
dc.identifierSociobiology. Calif State Univ, v. 44, n. 3, n. 577, n. 598, 2004.
dc.identifier0361-6525
dc.identifierWOS:000224660200011
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/67444
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/67444
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/67444
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1277628
dc.descriptionIn this paper, we present field observations on paternal care in five species of harvestmen belonging to the family Gonyleptidae: Gonyleptes saprophilus, Neosadocus sp. (Gonyleptinae), Iguapeia melanocephala, Iporangaia pustulosa, and Progonyleptoidellus striatus (Progonyleptoidellinae). We also provide a critical reassessment of all cases of paternal care in harvestmen and examine the extent to which the available data can be used to test a recent theory on the evolution of exclusive male care via sexual selection. Eggs of the two Gonyleptinae species are laid inside natural cavities in trunks and in the soil, whereas eggs of the Progonyleptoidellinae are laid on the undersurface of leaves and are covered by a thick mucus coat. Females of the five species are iteroparous and the batches generally consist of eggs in several embryonic stages. This finding suggests that males have many mating opportunities and that they guard eggs laid by more than one female. Data from other four paternal harvestmen (Zygopachylus albomarginis, Lepchana spinipalpis, Ampheres leucopheus, and Cadeadoius niger) are quite similar and support most of the predictions of the theory on the evolution of exclusive male care via sexual selection. However, information supporting the prediction that males should be willing to guard unrelated eggs is ambiguous since in at least two species, L pustulosa and Z. albomarginis, vagrant males do not hesitate to eat the eggs of unprotected batches. There are several differences in the behavioral patterns of guarding male and female harvestmen. The evolution of maternal care was clearly driven by natural selection, whereas paternal care seems to be a sexually selected trait. Paternal care has apparently evolved independently several times in the order Opiliones and at least twice within the Gonyleptidae: once in the subfamily Gonyleptinae and once in the ancestor of the clade Caelopyginae + Progonyleptoidellinae.
dc.description44
dc.description3
dc.description577
dc.description598
dc.languageen
dc.publisherCalif State Univ
dc.publisherChico
dc.publisherEUA
dc.relationSociobiology
dc.relationSociobiology
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectGonyleptes
dc.subjectGonyleptidae
dc.subjectIguapeia
dc.subjectIporangaia
dc.subjectNeosadocus
dc.subjectparental investment
dc.subjectProgonyleptoidellus
dc.subjectsubsocial behavior
dc.subjectCavernicolous Harvestman
dc.subjectSoutheastern Brazil
dc.subjectSubsocial Behavior
dc.subjectParental Care
dc.subjectOviposition
dc.subjectInvestment
dc.subjectArthropods
dc.subjectBiology
dc.titleFive new cases of paternal care in harvestmen (Arachnida : Opiliones): Implications for the evolution of male guarding in the neotropical family gonyleptidae
dc.typeArtículos de revistas


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