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.
Results
Showing 1 to 20 of 69 for “"reproductive strategies"”.
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Individual reproductive strategies in the dusky warbler (Phylloscopus fuscatus)
… the study focuses on individual variation in the reproductive behaviours of both females and males. The mating system of this population is characterised by facultative polygyny (17 per cent of the males mated with more than one female), and by an outstandingly high rate of extra-pair paternity …
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Sex-specific reproductive strategies in redfronted lemurs (Eulemur fulvus rufus, Primates, Lemuridae)
… is an essential determinant of male and female reproductive strategies. Females may benefit from living with several males, whereas males generally strive to monopolize a group of females. Due to male intrasexual competition, the sex ratio of groups of anthropoid primates is generally …
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Male Reproductive Strategies And Mating Displays In The Ocellated Turkey (Meleagris Ocellata)
… apathetic males may be exhibiting alternative reproductive strategies, or simply delaying maturation to conserve resources for future breeding attempts. In populations of the poorly studied, near-threatened Ocellated Turkey (Meleagris ocellata), males have been reported to be either "breeding" …
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The socio-endocrinology of female reproductive strategies in wild Assamese macaques (Macaca assamensis)
Sexueller Konflikt ist ein typisches Merkmal von Tieren in gemischten Geschlechtergruppen, und treibt die Evolution von geschlechtsspezifischen Reproduktionsstrategien. Aufgrund divergierender reproduktiver Optima, sollten Männchen untereinander konkurrieren, um möglichst viele Weibchen zu …
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Sexual selection, reproductive strategies, and genetic variation in the longear sunfish (Lepomis megalotis)
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Molecular phylogenetics and the evolutionary history of reproductive strategies in benthic shallow-water octopuses (Cephalopoda: Octopodinae)
… the evolution and maintenance of dichotomous reproductive strategies is a fecundity-survival trade-off and environmental factors strongly influence the evolutionary history of these strategies. In this thesis I aimed to examine the evolutionary relationships among the benthic shallow-water …
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The evolution and benefits of nest association and other reproductive strategies in North American minnows (Cyprinidae)
… histories of North American minnows, including reproductive behavior. In order to promote understanding of the evolution, behavior and ecology of minnows, a list of minnows for which reproductive behaviors are known was compiled. These behaviors were classified so that the evolution and adaptive …
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Intra and inter-specific variation in the reproductive strategies of two Bolboschoenus species from south-eastern Australia
… objectives. Firstly, to investigate the sexual reproductive ecology and germination requirements of Bolboschoenus caldwellii and Bolboschoenus medianus. Secondly, to examine the asexual growth mechanisms and responses of Bolboschoenus caldwellii and Bolboschoenus medianus to interesting …
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IMPACTS OF BLOODBORNE PATHOGEN INFECTIONS ON BREEDING ECOLOGY AND SUCCESS IN WHITE-THROATED SPARROWS (Zonotrichia albicollis)
… and fledging success. In species with multiple reproductive strategies, pathogen infections may have different impacts based on the role of the infected parent. White-throated Sparrows are a polymorphic species that mate disassortatively and display alternative reproductive strategies associated …
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The Hormonal Basis for the Reproductive Cycle in Reptiles, With Emphasis on Lizards.
… various adjustments in the timing of its reproductive efforts and in the number of offspring produced. This is especially true among reptiles, who have utilized a diversity of reproductive "strategies" while occupying many ecological habitats.
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Sexual Selection in Mantled Howling Monkeys (Alouatta palliata), With an Emphasis on the Role of Female Mate Choice
… have shown a renewed interest in female reproductive strategies. Clearly the traditional portrayal of female animals as passive participants in mating is incorrect, but much is still unknown about female reproductive strategies, including the extent of female mate choice. The primary goal …
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Evolutionary Ecology of the First Animal Ecosystems
… disease. In Chapter 4, I find evidence of mixed reproductive strategies in early sessile animals that reflect evolutionary trade-offs, perhaps in response to environmental instability. Finally, I argue that the findings of this thesis, and indeed many unexpected features of the wider early animal …
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The role of life-histories in colonising a novel environment
… from ancestral forests? Firstly, by studying reproductive strategies using field samples and museum material, I showed that forest species reproduce throughout the year, while savannah species undergo reproductive diapause during the dry season, and that both habitat preference and …
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Mitochondrial DNA Sequence Variation in Populations of the Nine-Banded Armadillo (Dasypus novemcinctus)
… expansion combined with the organism's unique reproductive strategies have promulgated low genetic variation in the North American populations of nine-banded armadillos.
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Stealing, scavenging, or storing? Breeding behaviors of unisexual Ambystoma salamanders
… success may be due to the diversity of their reproductive strategies.</p>
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The Multituberculates as Living Animals: New Insights into the Ecomorphology, Behavior, and Life History of One of the Most Successful Mammalian Lineages
… are distinct and likely reflect their divergent reproductive strategies. We then apply our histological correlate of reproductive strategies to a sample of multituberculate femora from the Late Cretaceous and Paleocene of Montana and find that their bone histology is nearly identical to that of …
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Platyrrhine Phylogenetics With A Focus On Callitrichine Life History Adaptations
… history of a species is highly impacted by their reproductive strategy. In my dissertation I address the changing reproductive strategies in callitrichine New World monkeys and their genetic underpinnings using a phylogenetic approach. The necessity for a resolved phylogeny is universal to any …
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