The Role of Mountain Ranges in the Diversification of Birds

  title={The Role of Mountain Ranges in the Diversification of Birds},
  author={Jon Fjelds{\aa} and Rauri C. K. Bowie and Carsten Rahbek},
  journal={Annual Review of Ecology, Evolution, and Systematics},
Avian faunas vary greatly among montane areas; those at high latitudes are biologically impoverished, whereas those of some low-latitude mountains are biologically very complex. Their high level of species richness is caused by the aggregation of many small-ranged species, which has been difficult to explain from purely macroecological models focusing on contemporary ecological processes. Because the individual mountain tracts harbor species that represent different evolutionary trajectories… 

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