This chapter examines the phylogeographic patterns among rodents of the Brazilian Atlantic Forest. Based on comparative analyses of mitochondrial DNA sequences from rodents, it suggests that the diversification of these taxa is not the result of shared environmental pressures, but instead, likely reflects the distinctive phylogeographic and environmental histories of each lineage. The evidence also provides some support to the Ecological Gradient Hypothesis in the distribution of sister species/clades in different habitats within mountain ranges.
Keywords: rodents; phylogeographic patterns; Brazilian Atlantic Forest; mitochondrial DNA sequences; Ecological Gradient Hypothesis
Chapter. 7894 words. Illustrated.
Subjects: Zoology and Animal Sciences
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