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 11 of 11 for “"inbreeding avoidance"”.
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Causes and consequences of inbreeding in the banded mongoose
Inbreeding and inbreeding depression have been studied since the days of Darwin and yet we are still making important discoveries today. These discoveries can inform conservation practices as inbreeding depression can contribute to population extinction. Inbreeding is also an important subject in …
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Impact of self-fertilization on fecundity, the timing of first reproduction, and population genetic structure: Is a mate worth the wait?
… exhibit two evolutionary syndromes uniting high inbreeding depression with low levels of selfing, or low inbreeding depression and high levels of selfing. This study tests for inbreeding depression in an apparent self-compatible, hermaphroditic marine nemertean worm, Prosorhochmus americanus. …
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Female Dispersal and Inbreeding in the Red-cockaded Woodpecker
… of the relationship between dispersal and inbreeding, I studied three aspects of the biology of the red-cockaded woodpecker: dispersal of breeding females; the costs, benefits, and frequency of inbreeding; and the effect of inbreeding on natal dispersal. Dispersal of breeding female …
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Genetic variation and parentage in the Ethiopian wolf Canis simensis
… relatedness coefficient. It was found that inbreeding avoidance was not a contributing factor to producing offspring in the population. The results of this study contribute to our understanding of the social system of the Ethiopian wolf, document the consequence of disease outbreaks to pack …
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Paternity and father-offspring relationships in wild chimpanzees, Pan troglodytes schweinfurthii.
… in Chapter 3, I investigated whether there was inbreeding avoidance between fathers and daughters.
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Effects of Inbreeding on Endangered Red Wolves (Canis rufus)
Inbreeding depression, the reduction in offspring fitness caused by mating among close relatives, is widespread in small populations and a major concern in conservation biology because it can affect population persistence. The negative effects of inbreeding results in the evolution of inbreeding …
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The maintenance of variation in Cyprinodontiformes
… pattern polymorphisms found in male guppies, and inbreeding avoidance has been proposed as a mechanism to explain its evolution. Inbreeding avoidance is advantageous when populations exhibit inbreeding depression and the opportunity for mating between relatives exists. To determine whether these …
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Social structure, individual fitness and the effect of climate in an obligate cooperatively breeding bird, the white-winged chough (Corcorax melanorhamphos)
… how this probably reflects the importance of inbreeding avoidance within chough groups. I did not find that relatedness was associated with higher cooperative behaviour within groups, suggesting the cooperative behaviours observed would be more related to direct benefits of helping.
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Social structure, individual fitness and the effect of climate in an obligate cooperatively breeding bird, the white-winged chough (Corcorax melanorhamphos)
… how this probably reflects the importance of inbreeding avoidance within chough groups. I did not find that relatedness was associated with higher cooperative behaviour within groups, suggesting the cooperative behaviours observed would be more related to direct benefits of helping.
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Breeding and dispersal implications for the conservation of the Southern Ground Hornbill Bucorvus leadbeateri
… distances, raising interesting questions about inbreeding avoidance mechanisms in this species. If females do not disperse beyond the range of related males, how do related individuals avoid pairing, and what forms of individual recognition exist?
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Parentage analysis in a free-ranging, closed population of southern white rhinoceros : genetics, pedigrees and management
… consequences of breeding within a closed group – inbreeding depression and genetic drift lead to reductions in genetic variability, which in turn can give rise to the amplification of deleterious traits. Traditionally, managers attempt to minimise these effects by controlling the genetic structure …