books.google.it - Adaptive radiation is the evolution of diversity within a rapidly multiplying lineage. It can cause a single ancestral species to differentiate into an impressively vast array of species inhabiting a variety of environments. Much of life's diversity has arisen during adaptive radiations. Some of the...http://books.google.it/books/about/The_Ecology_of_Adaptive_Radiation.html?hl=it&id=Q1wxNmLAL10C&q=genetic+drift&utm_source=gb-gplus-shareThe Ecology of Adaptive Radiation
