| rivers, refuges and population divergence of fire-eye antbirds (pyriglena) in the amazon basin. | the identification of ecological and evolutionary mechanisms that might account for the elevated biotic diversity in tropical forests is a central theme in evolutionary biology. this issue is especially relevant in the neotropical region, where biological diversity is the highest in the world, but where few studies have been conducted to test factors causing population differentiation and speciation. we used mtdna sequence data to examine the genetic structure within white-backed fire-eye (pyrig ... | 2013 | 23442128 |