Sentences with phrase «selective radiation pressure»

These might arise from mechanical effects — for example, selective radiation pressure or photospheric diffusion and element separation — rather than from nuclear effects.

Not exact matches

Now we have data and can infer what selective pressures were driving brain evolution in the radiation that led to mammals.»

The birds are a textbook example of adaptive radiation, in which a single ancestor responds to a selective pressure — in this case, food availability — by diversifying into several species.

Actually, many extinction events punctuated the Triassic, which are believed to have provided additional selective pressures fostering the dinosaur radiation into emptied niches.

«The hypothesis to be tested experimentally in ADAPT was whether longer - lasting selective pressure by UV radiation results in a higher UV resistance, as well as in a higher resistance against further «extreme» environmental factors that exist in space,» Wassmann said.