Interspecific competition for resources is generally considered to be the selective force driving ecological character displacement, and displacement is assumed to reduce competition. Skeptics of the ...

Abstract Competition has negative effects on population size and also drives ecological character displacement, that is, evolutionary divergence to utilize different portions of the resource spectrum.

A large new study of ovenbird lineages questions the extent to which competing species push each other to evolve. In 1982, a few large ground finches took up residence on the tiny island of Daphne ...