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Due to their distance from the pole and extent of surrounding oceans, southern hemisphere lands were not subjected to such severe climatic conditions in the Pleistocene as those in the northern hemisphere. Pleistocene climate cycling did however result in extensive shifts in habitat zones due to fluctuation of rainfall and temperature. Warm and wet conditions during interglacials supported southward...
Aim The New Zealand avifauna includes lineages that lack close relatives elsewhere and have low diversity, characteristics sometimes ascribed to long geographic isolation. However, extinction at the population and species levels could yield the same pattern. A prominent example is the ecologically important pigeon genus Hemiphaga. In this study, we examined the population structure and phylogeography...
The avifauna of New Zealand is taxonomically and ecologically distinctive, as is typical of island biotas. However, the potential for an old geological age of New Zealand has encouraged a popular notion of a ‘Moa’s ark’ based on the idea that much of the fauna was isolated when Zealandia broke from Gondwana c. 83 million years ago. Molecular phylogenetics has proved useful for exploring the relative...
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