The process of speciation is completed with the cessation of genetic exchange. — Peter R. Grant Copy Share Image
Thus the genetic basis to the origin of bird species is to be sought in the inheritance of adult traits that are subject to natural and sexual selection. — Peter R. Grant Copy Share Image
Exchange of breeding individuals between two populations tends to homogenize their gene pools. — Peter R. Grant Copy Share Image
Almost nothing is known from hybridization studies about the inheritance of courtship behavior of females, or of their responsiveness to particular male signals. — Peter R. Grant Copy Share Image
To summarize, the particular song a male sings, and the behavioral responses of females to song and morphological signals, are not genetically inherited in… — Peter R. Grant Copy Share Image
The independent role of morphology in mate choice is revealed by the rare instances where the usual association between song and morphology is disrupted. — Peter R. Grant Copy Share Image
The divergence of songs in the new population away from those in the progenitor population would only be prevented if these processes were balanced… — Peter R. Grant Copy Share Image
The process of speciation is completed with the cessation of genetic exchange. — Peter R. Grant Copy Share Image
Plumage features constitute a major component of courtship signals. — Peter R. Grant Copy Share Image
The theory of founder effects does not explain how novel features like plumage traits arise. — Peter R. Grant Copy Share Image
Genes that underlie the capacity to receive, use and transmit information are the evolving properties. — Peter R. Grant Copy Share Image
