Population structuring of the endemic black-cheeked gnateater, Conopophaga melanops melanops (Vieillot, 1818) (Aves, Conopophagidae), in the Brazilian Atlantic Forest

Brazilian Journal of Biology

Vo. Lunardi²  Mr. Francisco¹  Pm. Galetti Jr.² 

[1] ,Universidade Federal de São Carlos - UFSCar Departamento de Genética e Evolução São Carlos SP ,Brazil

关键词: population genetics;    suboscines passerines;    tropical forest;    conservation genetics;    genética de populações;    passeriformes suboscines;    floresta tropical;    genética da conservação;   

DOI  :  10.1590/S1519-69842007000500009

来源: SciELO

【 摘 要 】

Randomly amplified polymorphic DNA (RAPD) markers were used to analyze genetic differentiation among three populations of the endemic Black-cheeked Gnateater (Conopophaga melanops melanops) within a larger pristine reminiscent of the Brazilian Atlantic Forest. Analyses of molecular variance (AMOVA) (phiST = 0.13149, P < 0.0001) and the nonparametric test for homogeneity of the molecular variance (HOMOVA) (B = 0.32337; P = 0.0019) showed a statistically significant genetic divergence among the three Black-cheeked Gnateater populations in a continuous transect of 250 km. Some hypothetic explanations for these results are the sedentary nature of the species and the historical isolation of the populations in refuges during the Pleistocene. The present results suggest that the local populations were naturally differentiated along the entire original range before the recent process of massive deforestation.

【 授权许可】

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