Mitochondrial-Dna Phylogeography of Birds in Eastern Australian Rain-Forests - First Fragments

摘要: We studied the historical biogeography of eastern Australian rainforests, in particular whether Plio-Pleistocene rainforest refugia existed, through phylogeography mitochondrial DNA (mtDNA) seven bird species. Restriction fragment length polymorphisms four species endemic to northeastern Queensland rainforests showed that within-species differentiation was concordantly structured two these (grey-headed robin, Poecilodryas albispecularis, and chowchilla, Orthonyx spaldingii) but not others (Australian fernwern, Oreoscopus gutturalis, Atherton scrubwren, Sericornis keri). Between more geographically widespread confined (yellow-throated S. citreogularis, large-billed magnirostris), phylogeographic patterns north-eastern were structured; same species, however, mtDNA diversity clearly apportioned between south-eastern Queensland, so showing congruence at geographic scale. A seventh (white-browed frontalis), a wide-ranging habitat-generalist, no structure any geographical The refuge hypothesis is supported location genetic break grey-headed robin chowchilla identical previously reported for mammals skinks. However, lack complete across all suggests with broadly similar current ecologies affected way. Evolutionary histories are complex idiosyncratic than thought implicated rather outright rejection hypothesis.