Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Extra-pair Paternity"”.
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Extra-pair paternity within the female-defense polygyny of the lizard, Anolis carolinensis: Evidence of alternative mating strategies
… weekly intervals over a 4-month breeding season. Paternity of hatchlings in 16 naturally occurring breeding groups was analyzed to determine the extent to which the territorial resident male was able to prevent other males from fathering offspring of his resident females. Lizards residing in or …
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Extrapair mating behaviors in the field sparrow: nocturnal singing and extraterritorial forays
… nocturnal signing by diurnal birds and extra-territorial forays (movements off territory). My research explored the function of nocturnal singing and extra-territorial forays in the Field Sparrow (Spizella pusilla). I determined that nocturnal complex song serves to announce the presence …
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The Consequence of Anthropogenic Disturbance on Communication and the Operation of Sexual Selection in the Eastern Bluebird (Sialia Sialis)
… levels of disturbance. To do this, I determined paternity of nestlings using microsatellite. Then, I determined the major factors influencing rates of extra-pair paternity (i.e., proportion of nestlings within a nest that were sired by other males), and tested whether these factors varied with …
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Reproductive Decisions in American Robins (Turdus Migratorius): Relationships Among Paternity Allocation, Parental Care, Plumage Variation, and Mate Choice
… interactions affect mate-guarding opportunity, extra-pair paternity (EPP), parental care, and mate choice in the American robin, Turdus migratorius, a socially monogamous, multi-brooded songbird. Reproductive success in American robins was strongly influenced by the number of nesting attempts …
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Living apart together
… primate from Madagascar living in dispersed pairs. First, I characterise their social organization, focusing on behavioural mechanisms of cohesion between pair partners. Second, through application of van Schaik's ecological model, I investigate predictions about the ecological basis of …
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A molecular and evolutionary study of skua breeding systems
… fingerprinting, revealed a single instance of extra-pair paternity and a single instance of a chick which was parented by neither resident adult. The most likely explanation for the latter is the 'adoption' of a chick from a neighbouring territory. Similarly, DNA fingerprinting was used to …
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Genobiography: The Beethoven Genome Project as a case study integrating genomics into historical biography
… was sequenced to 24-fold genomic coverage using extract from 275cm of hair. Although no genetic predisposition for hearing or gastrointestinal disorders could be identified, several significant heritable and infectious risk factors for liver disease were discovered. Beethoven was homozygous for …
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Individual reproductive strategies in the dusky warbler (Phylloscopus fuscatus)
… female), and by an outstandingly high rate of extra-pair paternity (45 per cent of the offspring was not sired by the social partner of the female). The occurrence of polygyny is best explained by the ‘polygyny-threshold model’ (PTM). A novel finding of this study is that female mating …
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Effects of supplemental food on the behavior, aggression, and paternity status of male Indigo Buntings (Passerina cyanea)
… behaviors were noted. To determine paternity, blood samples were collected from adults and nestlings at 19 nests. DNA was extracted, amplified, and hand-scored on polyacrylamide gels. Males with feeders in their territories spent significantly less time foraging and significantly …
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Evidence pro přímé a nepřímé výhody plynoucí samicím ze sexuální promiskuity u obratlovců
Promiskuitní chování samic je pozorováno u mnoha skupin obratlovců ovšem vysvětlení tohoto jevu včetně výhod, které z něj plynou samicím, zůstávají nejasné. Hypotézy, které by tento jev měly vysvětlovat, lze rozdělit na adaptivní a neadaptivní. Dle adaptivních hypotéz jsou samice promiskuitní, …