SUMMARY (i) To find out whether a mating preference could have initially evolved for
adaptive reasons, one must determine whether the preferred trait could have provided …

Publisher Summary This chapter outlines the evolution of geographic variation in birdsong.
Studies of vocal signals in birds offer potentially useful opportunities for empirical tests of the …

Literature Cited to accompany Animal Communication, 2e Page 1 Principles of Animal
Communication, Second Edition Jack W. Bradbury and Sandra L. Vehrencamp Chapter 14 …

Animals use acoustic signals for communication, implying that the properties of these
signals can be under strong selection. The acoustic adaptation hypothesis predicts that …

Male bird song may attract and stimulate females and may repel males, but the evidence
that song is essential for accomplishing these “main functions” is not abundant. Correlations …

▪ Abstract Bird song provides an unusually impressive illustration of vertebrate behavioral
diversification. Research on bird song evolution traditionally focuses on factors that enhance …

Birdsongs are always part of larger set of sound signals. Every bird uses a repertoire of calls
for communication. Calls are shorter and simpler than songs, with a much larger range of …

Birdsong provides neuroscientists with a uniquely powerful model for studying imitative
vocal learning in a system where the brain structures responsible for song learning and …

This study describes a system of regional dialects in the contact call of a parrot, the yellow-
naped amazon (Amazona auropalliata.) Spectrographic cross-correlation analyses of calls …

To compare the fitness of philopatric and immigrant individuals we examined the lifetime
reproductive success of 116 male and 137 female great reed warblers. The study was …