Sentences with phrase «exerts evolutionary pressures»

The urban environment could be exerting evolutionary pressures on the bird songs, meaning that birds with a higher - pitched repertoire are more successful at mating.

Not exact matches

This process was hypothesized to result from an evolutionary chemical arms race, in which the invention of potent venom in the predatory animals and the evolution of venom resistance in their prey animals, exert reciprocal selection pressures.

But primate researchers say the animals don «t have much spare time in the wild for mating, let alone for playing with themselves, and it's in the wild that the evolutionary pressures Hrdy talks about are exerted.

Nevertheless, variations in evolutionary signatures of selection amongst immune genes from bumblebees and honeybees may point to different pressures exerted by the distinct pathogens that threaten these bees.