Testing the Effects of Barriers on the Genetic Connectivity in Podocnemis erythrocephala (Red-Headed Amazon River Turtle): Implications for Management and Conservation
作者： Rafaela Cardoso Dos Santos , Maria das Neves Silva Viana , Luíz Alberto dos Santos Monjeló , Paulo César Machado Andrade , Jackson Pantoja-Lima
DOI: 10.2744/CCB-1184.1
关键词: Amazon rainforest 、 Podocnemis 、 Biology 、 Podocnemis erythrocephala 、 Podocnemididae 、 Drainage basin 、 Tributary 、 Ecology 、 Pleurodira 、 Population
摘要: Abstract In contrast to the other Podocnemis species, erythrocephala (Pleurodira: Podocnemididae) is restricted blackwater and clearwater rivers lakes, including Negro River basin, several tributaries of eastern Amazon basin. order test effects geographic barriers on genetic connectivity P. erythrocephala, 10 localities sampled throughout Brazilian basin were studied. Two hundred forty-six specimens sequenced for mitochondrial control region. Analysis molecular variance confirmed existence population subdivision (ΦST = 0.28, p < 0.001). pairwise comparisons, values fixation index ΦST significant in almost all comparisons involving Sao Gabriel da Cachoeira (Negro River), Jau National Park (Jau Barreirinha (Andira indicating that these populations are genetically differentiated. Genetic differentiation most likely explained by presence rapids waterfalls separat...
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