Journal ArticleDOI
Evolutionary divergence in acoustic signals: causes and consequences
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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Dissertation
Effects of urban noise on vocalisations of tūī (Prosthemadera novaeseelandiae) : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Conservation Biology at Massey University, Auckland, New Zealand
TL;DR: ................................................................................................................
Dissertation
The evolution of the advertisement call in glassfrogs (Centrolenidae Taylor, 1951)
Escalona Sulbarán,Moisés David +1 more
TL;DR: It is found that body size is associated with the evolution of advertisement calls in glassfrogs and diversification of acoustic traits along the phylogeny of glass frogs is coincident with the radiation of extant taxa at the Miocene-Pliocene boundary.
Journal ArticleDOI
Vocal divergence and discrimination of long calls in tamarins: A comparison of allopatric populations of Saguinus fuscicollis nigrifrons and S. f. lagonotus.
TL;DR: Results are consistent with the hypothesis that allopatric divergence of long calls might contribute to reproductive isolation of these subspecies of saddle‐back tamarins, which adds to growing evidence suggesting full species status for these taxa.
Journal ArticleDOI
Dolphin whistles can be useful tools in identifying units of conservation
Elena Papale,Elena Papale,M. Azzolin,Irma Cascão,Alexandre Gannier,Marc O. Lammers,Vidal Martín,Julie N. Oswald,Monica Perez-Gil,Rui Prieto,Mónica A. Silva,Mónica A. Silva,Marco Torri,Cristina Giacoma +13 more
TL;DR: In this article, data collection and processing in the Azores was funded by Fundacao para a Ciencia e a Tecnologia (FCT), through research projects TRACE-PTDC/MAR/74071/2006 and MAPCET-M2.3.1.2/F/012/2011 (FEDER, the Competitiveness Factors Operational (COMPETE), QREN European Social Fund, and Progencia Acores/EU Program).
Journal ArticleDOI
A desert songbird with no confamilials in the Western Hemisphere (Verdin, Auriparus flaviceps) investigates divergent conspecific songs
TL;DR: Verdin (Auriparus flaviceps), a monotypic genus of songbird with no confamilials in North America, is used to explore song variation and recognition in a species living without close relatives, and is found to have geographic variation in song that mapped well onto large desert habitat regions.
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.
Journal ArticleDOI
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.