@article {47904,
	title = {Signal Evolution: {\textquoteright}Shaky{\textquoteright} Evidence for Sensory Bias},
	journal = {Current Biology},
	volume = {26},
	year = {2016},
	month = {Jan-01-2016},
	pages = {R78 - R80},
	issn = {09609822},
	doi = {10.1016/j.cub.2015.11.045},
	url = {http://linkinghub.elsevier.com/retrieve/pii/S0960982215014396},
	author = {Pascoal, Sonia and Nathan W. Bailey}
}
@article {47895,
	title = {Evolution of a Communication System by Sensory Exploitation of Startle Behavior},
	journal = {Current Biology},
	volume = {25},
	year = {2015},
	month = {Jan-12-2015},
	pages = {3245 - 3252},
	abstract = {<p>New communication signals can evolve by sensory exploitation if signaling taps into preexisting sensory biases in receivers [1 ;\&nbsp; 2]. For mate attraction, signals are typically similar to attractive environmental cues like food [3; 4; 5 ;\&nbsp; 6], which amplifies their attractiveness to mates, as opposed to aversive stimuli like predator cues. Female field crickets approach the low-frequency calling song of males, whereas they avoid high-frequency sounds like predatory bat calls [7]. In one group of crickets (Eneopterinae: Lebinthini), however, males produce exceptionally high-frequency calling songs in the range of bat calls [8], a surprising signal in the context of mate attraction. We found that female lebinthines, instead of approaching singing males, produce vibrational responses after male calls, and males track the source of vibrations to find females. We also demonstrate that field cricket species closely related to the Lebinthini show an acoustic startle response to high-frequency sounds that generates substrate vibrations similar to those produced by female lebinthine crickets. Therefore, the startle response is the most likely evolutionary origin of the female lebinthine vibrational signal. In field crickets, the brain receives activity from two auditory interneurons; AN1 tuned to male calling song controls positive phonotaxis, and AN2 tuned to high-frequency bat calls triggers negative phonotaxis [9 ;\&nbsp; 10]. In lebinthine crickets, however, we found that auditory ascending neurons are only tuned to high-frequency sounds, and their tuning matches the thresholds for female vibrational signals. Our results demonstrate how sensory exploitation of anti-predator behavior can evolve into a communication system that benefits both senders and receivers.</p>
},
	issn = {09609822},
	doi = {10.1016/j.cub.2015.10.064},
	url = {http://linkinghub.elsevier.com/retrieve/pii/S0960982215013585},
	author = {ter Hofstede, Hannah M. and Sch{\"o}neich, Stefan and Tony Robillard and Hedwig, Berthold}
}
@article {47768,
	title = {Incidental effects and evolution of sound-producing organs in tree crickets (Orthoptera : Oecanthidae)},
	journal = {International Journal of Insect Morphology and Embryology},
	volume = {22},
	year = {1993},
	month = {Jan-04-1993},
	pages = {207 - 216},
	abstract = {<p>Male tree cricket (Orthoptera : Oecanthidae) calling songs are used by females to locate conspecific mates. Changes in these songs are crucial to speciation. Since certain features of cricket sounds are correlated with the structures of the stridulatory organs, changes in stridulatory organs must be correlated with changes in songs. Surprisingly, there is no established hypothesis to explain the mechanism of morphological change associated with changes in songs. Some alternative possibilities are explored, with reference to incidental effects. Available evidence suggests that stridulatory organs are genetically stable and that changes in these organs occur in steps rather than gradually.</p>
},
	issn = {00207322},
	doi = {10.1016/0020-7322(93)90010-X},
	url = {http://linkinghub.elsevier.com/retrieve/pii/002073229390010X},
	author = {Toms, Robert B.}
}
