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
Punctuated evolution in the learned songs of African sunbirds.
Jay P. McEntee,Jay P. McEntee,Gleb Zhelezov,Chacha Werema,Nadje Najar,Joshua V. Peñalba,Elia A. Mulungu,Maneno Mbilinyi,Sylvester Karimi,Lyubov Chumakova,J. Gordon Burleigh,Rauri C. K. Bowie +11 more
TL;DR: Learned traits are subject to different evolutionary dynamics than other phenotypes, but their evolutionary tempo and mode has received little attention as mentioned in this paper, and learned traits have not been studied in the literature.
Journal ArticleDOI
Phenotypic divergence in two sibling species of shorebird: Common Snipe and Wilson’s Snipe (Charadriiformes: Scolopacidae)
Tiago M. Rodrigues,Edward H. Miller,Sergei V. Drovetski,Robert M. Zink,Jon Fjeldså,David Gonçalves +5 more
TL;DR: This paper presents a meta-analyses of the response of the immune system to Tournaisian infectious disease using a probabilistic approach and shows clear patterns in response to antibiotics and in particular the immune response to E.coli.
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Investigating temporal coordination in the duet contributions of a pair-living small ape
Journal ArticleDOI
The Behaviour and Vocalisations of Captive Geoffroy's Horseshoe Bats, Rhinolophus clivosus (Chiroptera: Rhinolophidae)
TL;DR: In this paper, an ethogram and a list of vocalisations for Geoffroy's horseshoe bat (Rhinolophus clivosus) were compiled to better understand their social and acoustic behaviour.
Journal ArticleDOI
Tarsier islands: Exploring patterns of variation in tarsier duets from offshore islands of North Sulawesi.
TL;DR: The results of this study indicate that tarsier duets recorded from three islands in Bunaken National Park-which were recently identified as a genetically-distinct group-were not different from the other mainland Sulawesi sites.
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.