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From compared phylogeography to historical biogeography the example of some Central African forest small mammals De la phylogeographie comparee a la biogeographie historique lexemple de quelques mammiferes forestiers dAfrique centrale


Biosystema, 20: 131-139
From compared phylogeography to historical biogeography the example of some Central African forest small mammals De la phylogeographie comparee a la biogeographie historique lexemple de quelques mammiferes forestiers dAfrique centrale
From compared phylogeography to historical biogeography: the example of some Central African forest small mammals. Historical biogeography deals with the history of biotas, and phylogeography with that of isolated taxa. Comparison of several phylogeographic studies should allow to deal with the history of biotas, but how to compare the different phylogeographic patterns? And to what extent does the history of taxa reflect that of the whole biome? We discuss these questions on the basis of a study of four African, forest living small mammals. In order to extract a biogeographic signal from the four phylogeographic patterns obtained, we applied the method proposed by HOVENKAMP (1997) and which is devoted to identify a temporal sequence of vicariance events. We suggest an improvement of the method consisting in ordering vicariance events from separate lineages according to their relative ancestry based on absolute datation estimation. Our results tend to confirm that coherence between phylogeographic patterns would be the exception rather than the rule. This does not imply that there is no dominant history in biotas, but rather that this history is not necessarily that of the great majority of taxa.

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Accession: 038265427



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