Looking to the past and the future: were the Madeira River rapids a geographical barrier to the boto (Cetacea: Iniidae)?

@article{Gravena2014LookingTT,
  title={Looking to the past and the future: were the Madeira River rapids a geographical barrier to the boto (Cetacea: Iniidae)?},
  author={Waleska Gravena and Izeni Pires Farias and Maria N. F. da Silva and Vera M.F. da Silva and Tomas Hrbek},
  journal={Conservation Genetics},
  year={2014},
  volume={15},
  pages={619-629}
}
In the present study we tested if a series of 18 rapids on the upper Madeira River form an effective barrier to gene flow, and in particular if they delimit the distribution of the boto Inia boliviensis—which it is believed to occurs only in the Bolivian sub-basin, above the rapids—and I. geoffrensis, which occurs throughout the Amazon basin and below the upper Madeira River rapids. We analyzed 125 individuals from the Madeira River basin sampled from upstream and downstream of the rapids. As… Expand

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