01878nas a2200253   4500008004100000022001400041245014500055210006900200260001600269300001200285490000600297520105900303653001701362653001701379653001901396653001101415653001401426653001501440100003301455700002201488700002401510700002201534856006801556       2011                        eng d  a1477-200000aQuality calls: phylogeny and biogeography of a new genus of neotropical katydid (Orthoptera: Tettigoniidae) with ultra pure-tone ultrasonics0 aQuality calls phylogeny and biogeography of a new genus of neotr  cSep-03-2012  a77 - 940 v93 a<p>This paper describes Artiotonus, a new genus of tropical katydid from Colombia and Ecuador. These acoustic ensiferans are represented by three species with a geographic distribution generally restricted to the rainforest of the Bolivar geosyncline of northwestern South America (Pacific). A phylogenetic analysis based on 28 morphological and six behavioural characters produced a tree (A. artius, (A. tinae, A. captivus)) with a consistency index of 0.9. All species are defined by a few autapomorphic changes. The most reliable character for identification is the temporal pattern of the calling song, suggesting a recent genetic divergence. Biogeographic analysis indicates that such genetic divergence began with geographic isolation produced before the Holocene transgression. Species of this genus are remarkable in that the calling song of males exhibits a narrow spectrum with a high quality factor (37&ndash;42), unusual values for such ultrasonic signals. A broad discussion on the evolution of tonal calls and pulse trains is offered.</p>
10aBiogeography10acalling song10aConocephalinae10ahigh-Q10apure tone10aultrasound1 aMontealegre-Zapata, Fernando1 aMorris, Glenn, K.1 aSarria-S, Fabio, A.1 aMason, Andrew, C.  uhttp://www.tandfonline.com/doi/abs/10.1080/14772000.2011.56020902009nas a2200205   4500008004100000022001400041245011700055210006900172260001600241300001400257490000800271520132200279653001401601653001701615653003301632653001501665100001601680700002201696856008501718       2017                        eng d  a0024-406600aHearing sensitivity is more relevant to acoustic conspicuousness than to mechanical constraints in crambid moths0 aHearing sensitivity is more relevant to acoustic conspicuousness  cMay-08-2017  a174 - 1840 v1213 a<p>Moths evolved tympanal hearing organs to detect the echolocation calls of predatory bats. Moths&rsquo; auditory responses have been examined mainly for their sensitivity to the frequencies of bat cries: tympanate moths are basically tuned to the call frequencies of sympatric bats. Here, we add the finding that hearing sensitivity to &lsquo;pulse duration&rsquo; in cram- bid moths is also affected by predation pressure from echolocating bats. Analysis of interspecific variation showed that minimum auditory thresholds had a significantly negative relationship with the forewing surface area, that is, acoustic conspicuousness to bat sonar, but no relationship with head width, which was assumed to correlate with tympanal organ size. Auditory thresholds increased as pulses shortened in the 1&ndash;10 ms duration range, and conspic- uous moths with larger wing areas had lower thresholds than smaller moths. By contrast, &lsquo;intraspecific&rsquo; variation, within a single population of the lurcerne moth, revealed no relationship between forewing area and any auditory characteristics. Moth hearing adapts to the echolocation pulse duration of sympatric bat communities, suggesting that evolutionary modification of hearing sensitivity is related to acoustic conspicuousness based on moth wing area.</p>
10aarms race10aecholocation10apredator–prey interactions10aultrasound1 aNakano, Ryo1 aMason, Andrew, C.  uhttps://academic.oup.com/biolinnean/article-lookup/doi/10.1093/biolinnean/blw029