Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/22619
Tipo: Artigo
Título: Pliocene and Pleistocene events shaping the genetic diversity within the central corridor of the Brazilian Atlantic Forest
Autor(es): Resende, Helder C.
Yotoko, Karla S. C.
Delabie, Jacques H. C.
Costa, Marco A.
Campiopo, Sofia
Tavares, Mara G.
Campos, Lucio A. O.
Fernandes‐ Salomão, Tânia M.
Abstract: Dinoponera lucida (Formicidae; Ponerinae) is an extinction-threatened species of ant which is endemic in the central corridor of the Atlantic Forest. We used mitochondrial sequences of the Cox1, Cox2 and Cytb genes in order to infer some aspects of the evolutionary history and phylogeography of this ant. High genetic divergence and population structure were observed for the whole species. The current pattern of D. lucida diversity seems to be shaped during different geological times: middle Pliocene, early Pleistocene and mainly late Pleistocene, when the reduction of populations generated a structure pattern of the genetic variation of this species. Our data show that this structure results from the maintenance of populations of D. lucida within very small putative refuges to the south of the central Bahia refugium. We thus argue that, for some Atlantic forest endemic species, especially those resistant to very small fragments of forest, such as D. lucida, the small putative refuges were as important as, or even more important than, larger and stable refuges for the creation and maintenance of diversity, adding another piece to the puzzle of the mechanisms underlying local endemism.
Palavras-chave: Atlantic Forest diversification
Dinoponera lucida
Giant queenless ant
Phylogeography
Pleistocene refuge theory
Ponerinae
Editor: Biological Journal of the Linnean Society
Tipo de Acesso: Open Access
URI: http://dx.doi.org/10.1111/j.1095-8312.2010.01534.x
http://www.locus.ufv.br/handle/123456789/22619
Data do documento: 17-Nov-2010
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