Vocal communications and the maintenance of population specific songs in a contact zone.

PloS One
Jonathan T Rowell, M R Servedio

Abstract

Bird song has been hypothesized to play a role in several important aspects of the biology of songbirds, including the generation of taxonomic diversity by speciation; however, the role that song plays in speciation within this group may be dependent upon the ability of populations to maintain population specific songs or calls in the face of gene flow and external cultural influences. Here, in an exploratory study, we construct a spatially explicit model of population movement to examine the consequences of secondary contact of populations singing distinct songs. We concentrate on two broad questions: 1) will population specific songs be maintained in a contact zone or will they be replaced by shared song, and 2) what spatial patterns in the distribution of songs may result from contact? We examine the effects of multiple factors including song-based mating preferences and movement probabilities, oblique versus paternal learning of song, and both cultural and genetic mutations. We find a variety of conditions under which population specific songs can be maintained, particularly when females have preferences for their population specific songs, and we document many distinct patterns of song distribution within the contact zone,...Continue Reading

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Citations

May 13, 2015·Integrative and Comparative Biology·Rebecca CrostonVladimir V Pravosudov
Feb 15, 2018·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Oren KolodnyNicole Creanza
Oct 13, 2016·Journal of Evolutionary Biology·H L KenyonD E Irwin

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