Sentences with phrase «evolutionary adaptive radiation»

Paradoxically, because Lake Tanganyika is already considered the poster child for studies of evolutionary adaptive radiation — only not because of its eels.

Not exact matches

Groups such as mammals and frogs are known to have rebounded rapidly after that event, diversifying into multiple new forms as they occupied newly available niches — a process evolutionary biologists called adaptive radiation.

Together, the experiment and genetics show that adaptive radiation, at least in the vial, is due «to the most basic evolutionary processes: simple mutations and natural selection.»

Among his hypotheses was that the birds were successful in their adaptive radiation — the evolutionary diversification of morphological, physiological and behavior traits — because they were early colonizers of the islands.

«This is unique evidence of one of the most spectacular known examples of an incomplete adaptive radiation,» says Juan Francisco Ornelas, an evolutionary biologist at the Institute of Ecology in Xalapa, Mexico.

At the time this was probably rather useless genomic variation, but has now become incredibly beneficial millions of years later when the opportunity for major adaptive radiations arose, changing the way we think about evolutionary processes.»

There could be three evolutionary processes could explain this adaptive radiation of hominins: 1) the occupation of novel niches for species living in a highly productive but spatially constrained region when there are deep fresh water lakes in the EARS [46] and 2) the lakes themselves creating spatial structure producing population isolation and vicariance and 3) repeated periods of increased resource availability stimulated adaptation and radiation followed by periods of environmental stress when the lakes rapidly dried up imposing strong selection pressures [28].