The Effects of Provisioning on Behavior of the Allied Rock-Wallaby (Petrogale assimilis)
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The identity of the Depuch Island rock-wallaby revealed through ancient DNA
Ancient DNA is becoming increasingly recognised as a tool in conservation biology to audit past biodiversity. The widespread loss of Australian biodiversity, especially endemic mammal populations, is of critical concern. An extreme example occurred onDepuch Island, situated off the north-west coast ofWestern Australia, where an unidentified species of rock-wallaby (Petrogale sp.) became extinct...
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Many species receive an antipredator benefit from aggregation such that animals in larger groups are able to allocate more time to foraging and less to antipredator vigilance. These beneficial ‘group size effects’ must be traded-off against the costs of increased competition for limited resources that may result from aggregation. Certain species, or species living in certain habitats, may be pr...
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Complex Robertsonian rearrangements, with shared arms in different fusions, are expected to prevent gene flow between hybrids through missegregation during meiosis. Here, we estimate gene flow between recently diverged and chromosomally diverse rock-wallabies (Petrogale) to test for this form of chromosomal speciation. Contrary to expectations, we observe relatively high admixture among species...
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