Multiple paternity and the breeding biology of the red-eyed treefrog, Agalychnis callidryas

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dc.contributor.authord'Orgeix, Christian A.en
dc.contributor.committeechairTurner, Bruce J.en
dc.contributor.committeememberAndrews, Robin M.en
dc.contributor.committeememberHaas, Carola A.en
dc.contributor.committeememberJenssen, Thomas A.en
dc.contributor.committeememberSiegel, Paul B.en
dc.contributor.departmentBiologyen
dc.date.accessioned2014-03-14T21:12:01Zen
dc.date.adate2008-06-06en
dc.date.available2014-03-14T21:12:01Zen
dc.date.issued1996-05-05en
dc.date.rdate2008-06-06en
dc.date.sdate2008-06-06en
dc.description.abstractExternal fertilization makes male anurans susceptible to direct intrasexual competition for fertilization opportunities at the egg mass. The red-eyed treefrog, Agalychnis callidryas, is one species in which pairs of males appear to simultaneously fertilize the clutch of a Single female. DNA fingerprinting revealed the presence of multiple paternity in two egg clutches examined from two matings involving a female with two males. The breeding biology of females and the potential costs and benefits of mating with multiple males were examined. Females were found to decrease the number of eggs in matings with multiple males. In addition, amplexed females moving toward Oviposition sites avoided secondary males by moving when approached by secondary males. Mortality to the eggs as a result of multiple males attempting to amplex females is suggested as the reason females avoid multiple males. Males were found to exhibit calling site defense from other males. Males used a combination of auditory and a visual behavior in defending calling sites. The call types are described and the contexts within which calls occur is discussed. Density of frogs was found to be a better indicator of the occurrence of matings involving multiple males than the operational sex ratio (number of males/number of females).en
dc.description.degreePh. D.en
dc.format.extentvii, 157 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-06062008-151103en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-06062008-151103/en
dc.identifier.urihttp://hdl.handle.net/10919/37979en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V856_1996.D674.pdfen
dc.relation.isformatofOCLC# 35195819en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectbreeding biologyen
dc.subjectanuranen
dc.subjectAgalychnis callidryasen
dc.subjectmultiple paternityen
dc.subjectDNA fingerprintingen
dc.subject.lccLD5655.V856 1996.D674en
dc.titleMultiple paternity and the breeding biology of the red-eyed treefrog, Agalychnis callidryasen
dc.typeDissertationen
dc.type.dcmitypeTexten
thesis.degree.disciplineBiologyen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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