Journal ArticleDOI
Evolutionary divergence in acoustic signals: causes and consequences
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TLDR
A conceptual framework for testing the relative significance of both adaptive and neutral mechanisms leading to acoustic divergence is summarized, predictions for cases where these processes lead to speciation are predicted, and how their relative importance plays out over evolutionary time are summarized.Abstract:
Acoustic signals mediate mate choice, resource defense, and species recognition in a broad range of taxa. It has been proposed, therefore, that divergence in acoustic signals plays a key role in speciation. Nonetheless, the processes driving divergence of acoustic traits and their consequences in terms of speciation are poorly understood. A review of empirical and comparative studies reveals strong support for a role of sexual selection in acoustic divergence, but the possible concomitant influences of ecological context are rarely examined. We summarize a conceptual framework for testing the relative significance of both adaptive and neutral mechanisms leading to acoustic divergence, predictions for cases where these processes lead to speciation, and how their relative importance plays out over evolutionary time.read more
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Journal ArticleDOI
Evolutionarily conserved coding properties favour the neuronal representation of heterospecific signals of a sympatric katydid species
TL;DR: It is suggested that chirpers evolved an additional, 2-kHz component in their song and exploited pre-existing neuronal properties for detecting their song under masking noise, and the failure of some interneurons to respond to the conspecific song in trillers does not prevent intraspecific communication.
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Linear and geometric morphometric analyses of variation of the plectrum in four species of bess beetles, tribe Proculini (Coleoptera: Passalidae).
E.R. Ariza-Marín,E. De Luna +1 more
TL;DR: It is revealed that the size, density and shape of spines is different among zones in each of the four species, which would imply that plectrum spines might have taxonomic utility.
Journal ArticleDOI
Treefrogs adjust their acoustic signals in response to harmonics structure of intruder calls
Roseli Maria Foratto,Diego Llusia,Diego Llusia,Luís Felipe Toledo,Lucas Rodriguez Forti,Lucas Rodriguez Forti +5 more
TL;DR: The results suggest that male frogs may use the harmonic structure of calls to assess opponents and modulate territorial and aggressive behavior, triggering complex acoustic adjustments.
Journal ArticleDOI
Bioacoustics in cognitive research: Applications, considerations, and recommendations
Katherine E. Gentry,Rebecca N. Lewis,Rebecca N. Lewis,Hunter Glanz,Pedro Ivo Simões,Árpád S. Nyári,Michael S. Reichert +6 more
TL;DR: It is demonstrated that acoustic recordings and stimuli are valuable tools for cognitive researchers when used appropriately and a set of recommendations for best practices in the recording and use of acoustic signals in cognitive studies are provided.
Journal ArticleDOI
Macrogeographic variation in song of the MacGillivray's Warbler (Geothlypis tolmiei)
TL;DR: In this article, the authors studied macrogeographic variation in song of the MacGillivray's Warbler (Geothlypis tolmiei) to determine the pattern of song variation in this species and found extensive individual variation in the cultural units and physical parameters of song that overwhelmed differences among populations.
References
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Journal ArticleDOI
Signals, signal conditions, and the direction of evolution
TL;DR: Sensory systems, signals, signaling behavior, and habitat choice are evolutionarily coupled and should coevolve in predictable directions, determined by environmental biophysics, neurobiology, and the genetics of the suites of traits.
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Sexual selection, social competition, and speciation
TL;DR: Patterns of variation in socially selected characters demonstrate the wisdom of Darwin's distinction between natural and sexual selection, and the applicability of sexual selection theory to social competition in general.
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Ecological Sources of Selection on Avian Sounds
TL;DR: In this article, sound propagation tests were made in forest, edge, and grassland habitats in Panama to quantify pure tone and random noise band sound transmission levels, and the sounds of birds in each habitat were analyzed to determine the emphasized frequency, frequency range, and sound type (whether pure tonelike or highly modulated).
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Evidence for Ecological Speciation and Its Alternative
TL;DR: Tests of parallel evolution of reproductive isolation, trait-based assortative mating, and reproductive isolation by active selection have demonstrated that ecological speciation is a common means by which new species arise.
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Public information: from nosy neighbors to cultural evolution.
TL;DR: A large body of evidence suggests that human decision-making is strongly influenced by the behavior of others, which may then affect biological evolution.