dispersal

A young salmonid (salmon or trout) with parr-marks before migration to the sea and after dispersal from the redd.

幼鲑一个幼鲑(鲑或鳟)具有幼鲑横带，迴游到海洋以前与散布场之后。

In both cases, the researchers have evoked scenarios of Cretaceous vicariance, followed by endemic species radiation within Madagascar and subsequent dispersal from Madagascar to other areas.

这些情形，研究人员已经考虑了白垩纪隔离，接着特有种马达加斯加听散布及随后从马达加斯加扩散到其中地区域。