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New bioacoustic article in J. Evolutionary Biology

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Subject: New bioacoustic article in J. Evolutionary Biology
From: "Sonja Amoser" <>
Date: Tue, 30 Oct 2007 11:02:11 +0100
M. J. RYAN, X. E. BERNAL and A. S. RAND (2007): Patterns of mating call
preferences in tungara frogs, Physalaemus pustulosus. J. Evol. Biol.
20(6), 2235-2247

Abstract: We examine acoustic mating preferences of a focal population
at four different scales of divergence: within the population, between
populations in the same genetic group, between populations in different
genetic groups and between different species. At all scales there is
substantial genetic divergence, variation in mating signals and
preferences are influenced by signal variation. There is, however, no
support for the hypothesis that mating preferences accumulate
predictably with genetic distance. Females preferred the local
conspecific call to the foreign conspecific call in about one-third of
the experiments, and preferred the local call to all of the
heterospecific calls tested. But there was no significant relationship
between the variation in the strength of preference and genetic distance
either among conspecific populations, or among heterospecific species.
Thus, in this study macroevolutionary patterns are not apparent at the
microevolutionary scale.

For reprint requests please contact Dr. Michael J. Ryan (Email:

Dr. Sonja Amoser
Daringergasse 3/12
1190 Wien

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