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19 June 2020 Rodents of Choke Mountain and surrounding areas (Ethiopia): the Blue Nile gorge as a strong biogeographic barrier
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Abstract

Faunal studies of rodent assemblages from the areas on and around Choke Mountain (north-western Ethiopia) were conducted during two field seasons in 2012 and 2018. Here we present results of a genetic study of nine rodent species, and evaluate their genetic diversity and evolutionary relationships between conspecific populations from neighbouring montane massifs. Results of comparative analysis of phylogeographic patterns in Lophuromys, Desmomys, Stenocephalemys and Tachyoryctes have emphasized the role of the Blue Nile gorge as a strong biogeographic barrier, separating “northern” and “southern” independently evolved populations. Results of genetic analysis also revealed the presence of a new taxon of Dendromus, presumably belonging to a new species. Our study allows re-evaluation this area as an important “hotspot” of Ethiopian small mammal biodiversity.

Danila S. Kostin, Aleksey A. Martynov, Valeria A. Komarova, Dmitriy Yu. Alexandrov, Mesele Yihune, Mohammed Kasso, Josef Bryja, and Leonid A. Lavrenchenko "Rodents of Choke Mountain and surrounding areas (Ethiopia): the Blue Nile gorge as a strong biogeographic barrier," Journal of Vertebrate Biology 69(2), 1-12, (19 June 2020). https://doi.org/10.25225/jvb.20016
Received: 17 February 2020; Accepted: 18 March 2020; Published: 19 June 2020
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