@article {58243, title = {A new biophysical method to determine the gain of the acoustic trachea in bushcrickets}, year = {1994}, abstract = {

A method is described for measuring the gain (i.e., the change of amplitude and phase angle) for sounds that propagate to the internal surface of the tympana in ears working as pressure difference receivers. The gain of the acoustic trachea has been measured in two similarly sized and closely related species of bushcrickets, in which the acoustic spiracles and tracheae differ markedly in size. The amplitude part of the gain is much larger in the species with the larger acoustic spiracle, whereas the phase part is very similar in the two species. The method is compared with other methods, which in the past have been used for estimating the gain of sound pathways inside animal bodies.

}, keywords = {bushcricket, hearing, Pressure difference receiver}, doi = {10.1007/BF00215110}, url = {http://link.springer.com/10.1007/BF00215110}, author = {Michelsen, A. and Rohrseitz, K. and Heller, K.-G. and Stumpner, A.} } @article {58028, title = {Poecilimon gerlindae spec. nov.{\textendash}a new bushcricket species of the Poecilimon propinquus-group (Orthoptera: Phaneropteridae) from Greece}, journal = {Articulata}, volume = {21}, year = {2006}, pages = {109-119}, chapter = {109}, abstract = {

Poecilimon gerlindae spec. nov. from Greek mainland is described. The new species is the eight known member of the P. propinquus-group (sensu Lehmann AW 1998). It is distinct with respect to male cerci, the corresponding female basal fold, body colouration, number of teeth on the stridulatory file and the num- ber of pulses in the song. Otherwise it resembles P. propinquus in body size and general song pattern.

}, author = {Lehmann, Arne W and Willemse, Fer and Klaus-Gerhard Heller} } @article {58008, title = {Systematics and bioacoustics of the Poecilimon sanctipauli-group (Orthoptera: Tettigonioidea: Phaneropteridae)}, journal = {European Journal of Entomology}, volume = {102}, year = {2005}, month = {Mar-05-2005}, pages = {265 - 277}, abstract = {

In this paper a combination of characters by which Poecilimon species (Orthoptera: Tettigonioidea: Phaneropteridae) can be recognised as members of the P. sanctipauli group are described. Most important are the wide fastigium, short ovipositor and song characters. The morphological characters are figured and described (Table 1), and the song patterns illustrated by oscillograms. The proposed phylogenetic relationships of the members of this group are written as [P. mytilenensis (P. pulcher, P. lodosi, P. sanc- tipauli)]. All species of the group are known from southwest Turkey and some east Aegean islands. The three species P. pulcher, P. lodosi and P. sanctipauli are morphologically and bioacoustically quite similar. P. sanctipauli and P. pulcher are distinct species, P. lodosi, however, possesses a combination of the key characters of the other two species. It may be a relict species or, in our opinion more probably, a species of hybrid origin.

}, keywords = {bioacoustics, Bush-crickets, Greece, morphology, Poecilimon, Tettigonioidea, Turkey}, issn = {12105759}, doi = {10.14411/eje.2005.038}, url = {http://www.eje.cz/doi/10.14411/eje.2005.038.html}, author = {HELLER, KLAUS-GERHARD and Sevgili, Hasan} } @article {58006, title = {Bioacoustics and systematics of the Poecilimon heroicus-group (Orthoptera: Phaneropteridae: Barbitistinae)}, journal = {European Journal of Entomology}, volume = {103}, year = {2006}, month = {Feb-10-2006}, pages = {853 - 865}, abstract = {

The species of the Poecilimon heroicus-group occur around the Caucasus (from north-eastern Turkey to south-eastern Ukraine). We describe the diagnostic morphological characters of all these species and the male calling song of three of the four spe- cies. Based on this data the following phylogenetic relationship is derived (P. tschorochensis (P. tricuspis (P. heroicus, P. bifenes- tratus))). Within the genus Poecilimon, the species can be recognised by a relatively wide pronotum and large tegmina. In one species, Poecilimon tschorochensis Adelung, 1907 (type species of the monotypic genus Artvinia Karabag, 1962, syn. n.; P. rammei Miram, 1938, syn. n.), the tegmina are very large and the song has unusually low spectral components. This species produced di- syllabic echemes at intervals of about 10 s. In two other species of the group, P. heroicus and P. bifenestratus, the calling song of males consists of an uninterrupted dense sequence of long syllables (syllable duration around 0.5 s; ca. 1 syllable/s at 20\°C). In these species the auditory spiracles are reduced in size in both sexes, and the females have extremely small tegmina and are unable to respond to the male song acoustically, which would be typical for Phaneropteridae. The change in communication from acoustically responding to mute females has not been previously documented within a group of closely related species.

}, keywords = {bioacoustics, Bush-crickets, communication system, evolution, morphology, Orthoptera, Poecilimon, systematics, Tettigonioidea}, issn = {12105759}, doi = {10.14411/eje.2006.116}, url = {http://www.eje.cz/doi/10.14411/eje.2006.116.html}, author = {HELLER, KLAUS-GERHARD and KORSUNOVSKAYA, Olga S. and Sevgili, Hasan and ZHANTIEV, Roustem D.} } @article {57993, title = {A re-assessment of the Poecilimon syriacus group (Orthoptera Tettigonioidea, Phaneropteridae) based on bioacoustics, morphology and molecular data }, year = {2008}, abstract = {

In this paper a combination of characters is described by which Poecilimon species (Orthoptera, Tettigonioidea, Phaneropteridae) can be recognised as members of the P. syriacus group. All species occur in or around Anatolia \– from the island of Samos in the West and the provinces of Artvin and Bitlis in the East to Jerusalem in the South. The molecular data (Ullrich 2007) suggest the following not completely resolved relationship (ersisi (syriacus, (karakushi, (angulatus, obtusicercus n. sp.)), (xenocercus, karabukensis), ((izmirensis, ege) serratus))), while P. uvarovi and P. adentatus as well as P. kutahiensis (molecular data missing) are also considered to belong to the group according to song and/or morphology. The morphological data previously used to define the group are not sufficient to recognize all of its members. Some species differed distinctly in the structure of male genitalia, but the calling songs of all species studied are characterized by an unusually high syllable repetition rate and low number of impulses per syllable. Thus the evolution of genitalia seems to be faster than that of song patterns.

}, doi = {10.1163/187631208788784309}, url = {https://brill.com/view/journals/ise/39/4/article-p361_2.xmlhttps://data.brill.com/files/journals/1876312x_039_04_s002_text.pdf}, author = {Sevgili, Hasan and HELLER, KLAUS-GERHARD and Reinhold, Klaus} } @article {57963, title = {Review of Poecilimon species with inflated pronotum: description of four new taxa within an acoustically diverse group}, year = {2018}, abstract = {

Poecilimon Fischer (Orthoptera, Tettigoniidae) consists of about 130 species and a functional taxonomy of the genus re- quires arranging species into phylogenetic groups. However, this is a task that requires detailed empirical testing. This paper documents data on Poecilimon species with an inflated pronotum. The Poecilimon (Poecilimon) inflatus group is a lineage ranging along a narrow zone in the south-west corner of Anatolia and in Crete plus some other Aegean islands. By producing data of morphology and calling songs of males and responding songs of females the composition and intra- group diversity of P. inflatus group are studied. Both morphology and male calling and female responding songs, exhibited a considerable intra-group diversity. In the light of data obtained the following nomenclatural changes were made. The genus Parapoecilimon Karaba{\u g}, 1975 syn. n. is synonymised with Poecilimon Fischer and Parapoecilimon antalyaensis Karaba{\u g}, 1975 is given a new combination, Poecilimon antalyaensis (Karaba{\u g}, 1975) comb. n. Four new taxa are de- scribed in the group: (i) Poecilimon isopterus sp.n.; (ii) Poecilimon inflatus lyciae subsp. n.; (iii) Poecilimon antalyaensis myrae subsp. n., and (iv) Poecilimon antalyaensis anemurium subsp. n. The Poecilimon (P.) inflatus species group con- sists of the following species: (i) Poecilimon inflatus Brunner von Wattenwyl, 1891; (ii) Poecilimon martinae Heller, 2004; (iii) Poecilimon cretensis Werner, 1903; (iv) Poecilimon antalyaensis (Karaba{\u g}, 1975) comb. n.; (v) Poecilimon bilgeri Karaba{\u g}, 1953 and (vi) Poecilimon isopterus sp.n. The species group is defined by a combination of characters including the pronotum inflated in metazona and a male cerci mostly black in their apical 1/2\–1/3. The male calling song has typically two types of short syllables and the females respond acoustically with very short latency times. By using combination of morphology and song data we suggest three main lineages in the group: (i) P. bilgeri, (ii) P. antalyaensis and (iii) the other four species.

}, keywords = {Anatolia, Crete, Phaneropterinae, Poecilimon, Poecilimon inflatus group, Poecilimon isopterus sp. n.}, doi = {10.11646/zootaxa.4462.410.11646/zootaxa.4462.4.1}, url = {https://biotaxa.org/Zootaxa/issue/view/zootaxa.4462.4https://biotaxa.org/Zootaxa/article/view/zootaxa.4462.4.1}, author = {Kaya, Sarp and Dragan Petrov Chobanov and Klaus-Gerhard Heller and {\"O}zg{\"u}l Yahyao{\u g}lu} } @article {57950, title = {Listening when there is no sexual signalling? Maintenance of hearing in the asexual bushcricket Poecilimon intermedius}, year = {2007}, abstract = {

Unisexual reproduction is a widespread phenomenon in invertebrates and lower vertebrates. If a former sexual reproducing species becomes parthe- nogenetic, we expect traits that were subject to sexual selection to diminish. The bushcricket Poecilimon intermedius is one of the few insect species with obli- gate but diploid parthenogenetic reproduction. We contrasted characters that are involved in mating in a sexually sibling species with the identical structures in the parthenogenetic P. intermedius. Central for sexual communication are male songs, while receptive females approach the males phonotactically. Com- pared to its sister-species P. ampliatus, the morphology of the hearing organs (acoustic spiracle, crista acustica) and the function of hearing (acoustic threshold) are reduced in P. intermedius. Nonetheless, hearing is clearly maintained in the parthenogenetic females. Natural selection by acoustic hunting bats, pleiotropy or a developmental trap may explain the well main- tained hearing function.

}, keywords = {Auditory ecology, bioacoustics, neuroanatomy, Regression, Vestigialization}, doi = {10.1007/s00359-007-0209-y}, url = {http://link.springer.com/10.1007/s00359-007-0209-y}, author = {Gerlind U.C. Lehmann and Strau{\ss}, Johannes and Lakes-Harlan, Reinhard} } @article {57944, title = {Sensory evolution of hearing in tettigoniids with differing communication systems}, journal = {Journal of Evolutionary Biology}, volume = {27}, year = {2014}, month = {Jan-01-2014}, pages = {200 - 213}, abstract = {

In Tettigoniidae (Orthoptera: Ensifera), hearing organs are essential in mate detection. Male tettigoniids usually produce calling songs by tegminal stridu- lation, whereas females approach the males phonotactically. This unidirec- tional communication system is the most common one among tettigoniids. In several tettigoniid lineages, females have evolved acoustic replies to the male calling song which constitutes a bidirectional communication system. The genus Poecilimon (Tettigoniidae: Phaneropterinae) is of special interest because the ancestral state of bidirectional communication, with calling males and responding females, has been reversed repeatedly to unidirec- tional communication. Acoustic communication is mediated by hearing organs that are adapted to the conspecific signals. Therefore, we analyse the auditory system in the Tettigoniidae genus Poecilimon for functional adapta- tions in three characteristics: (i) dimension of sound-receiving structures (tympanum and acoustic spiracle), (ii) number of auditory sensilla and (iii) hearing sensitivity. Profound differences in the auditory system correlate with uni- or bidirectional communication. Among the sound-receiving structures, the tympana scale with body size, whereas the acoustic spiracle, the major sound input structure, was drastically reduced in unidirectional communicating species. In the unidirectional P. ampliatus group, auditory sensilla are severely reduced in numbers, but not in the unidirectional P. propinquus group. Within the P. ampliatus group, the number of auditory sensilla is further reduced in P. intermedius which lost acoustic signalling due to parthenogenesis. The auditory sensitivity correlated with the size of the acoustic spiracle, as hearing sensitivity was better with larger spiracles, espe- cially in the ultrasonic range. Our results show a significant reduction in auditory structures, shaped by the differing sex roles during mate detection.

}, keywords = {animal communication, insect hearing, regressive evolution, sensory ecology, sensory evolution, tympanal organ}, doi = {10.1111/jeb.2014.27.issue-110.1111/jeb.12294}, url = {http://doi.wiley.com/10.1111/jeb.2014.27.issue-1}, author = {Strau{\ss}, J. and Lehmann, A. W. and Gerlind U.C. Lehmann} } @article {53394, title = {To compete or not to compete: bushcricket song plasticity reveals male body condition and rival distance}, journal = {Animal Behaviour}, volume = {142}, year = {2018}, month = {Jan-08-2018}, pages = {59 - 68}, abstract = {

Males of several animals, including insects, use acoustic signals to attract a sexually receptive conspecific partner. In the orthopteran chorusing genus Poecilimon (Tettigoniidae), male signalling as well as female preference can be related to male body condition and to the social environment. Song is thought to be an honest signal of male quality, and song characteristics are therefore often important for sexual and social selection. At the same time, signal expression is plastic and this plasticity depends on the quality of the individual signaller, the acoustic components preferred by females and rivals\&$\#$39; body condition and proximity. Using the bushcricket species Poecilimon ampliatus as a model, we investigated how both internal (body condition) and external (level of competition) factors affected the expression of temporal song characteristics. We show that both factors significantly affected acoustic signalling activity: when competing against light rivals, heavy males adjusted the characteristics of their songs to different social conditions. However, light males competing against a heavy rival showed less plasticity in their acoustic signals across social conditions. During the most escalated competition, heavier males increased their acoustic signal investment up to the maximum level, signalling with longer verses and higher duty cycles, in comparison to all other treatments. Body condition and the social environment affected male acoustic signal activity, which suggests that these factors mediate the allocation of resources for signalling and different strategies adopted in competition. The adaptive plasticity of acoustic signals in this species raises new questions about the potential role that this process could play in natural choruses, where more than two competitors are signalling simultaneously.

}, keywords = {behavioural plasticity, body condition, bushcrickets, male-male competition}, issn = {00033472}, doi = {10.1016/j.anbehav.2018.05.022}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0003347218301738https://api.elsevier.com/content/article/PII:S0003347218301738?httpAccept=text/xmlhttps://api.elsevier.com/content/article/PII:S0003347218301738?httpAccept=text/plain}, author = {Anichini, Marianna and Frommolt, Karl-Heinz} } @article {53094, title = {Review of Poecilimon species with inflated pronotum: description of four new taxa within an acoustically diverse group}, journal = {Zootaxa}, volume = {4462}, year = {2018}, month = {May-08-2020}, pages = {451}, issn = {1175-5326}, doi = {10.11646/zootaxa.4462.4.1}, url = {https://biotaxa.org/Zootaxa/article/view/zootaxa.4462.4.1}, author = {Kaya, Sarp and Dragan Petrov Chobanov and Klaus-Gerhard Heller and {\"O}zg{\"u}l Yahyao{\u g}lu} } @article {47333, title = {Integrated systematics of the Poecilimon luschani species group (Orthoptera, Tettigoniidae): radiation as a chain of populations in a small heterogeneous area}, journal = {Zoological Journal of the Linnean Society}, volume = {169}, year = {2013}, month = {Jan-09-2013}, pages = {43 - 69}, abstract = {

The Poecilimon luschani species group (Orthoptera, Tettigonioidea, Phaneropterinae), ranging along a narrow line in West Anatolia and the Balkan mountains, has been revised using integrated data from morphology, bioacoustics, and DNA sequences of two matrilineal markers. A taxonomic approach neutral with respect to existing species/subspecies was applied to the sampled populations. The male calling song showed poor variation amongst the populations. Of the morphological structures, only the male cerci and male subgenital plate offer diagnostic characters but they are secondary gains or losses in most cases. Phylogenetic analyses applied to a data matrix consisting of concatenated 1401 bp long sequences of 16S rDNA and cytochrome oxidase subunit I produced from specimens of the group resulted in trees with similar topologies. Both genetic and phenotypic data confirmed the species status of the geographically discrete Izmir, Balkan, Ayd{\i}n, K\ütahya, and Bal{\i}kesir populations. However, 13 populations located in the southern part of the group\&$\#$39;s range in Antalya and Mu{\u g}la Provinces of Turkey present a complex phylogenetic and morphological pattern of three morphological units, but two phylogroups. By integrating song, morphology, and phylogenetic data the following conclusions were made. The species status of Poecilimon ledereri and Poecilimon orbelicus was confirmed. The Ayd{\i}n population was re-established as a valid species, P. tuncayi stat. rev. The K\ütahya population was elevated to species level as Poecilimon egrigozi \Ünal, 2005, stat. nov. The Bal{\i}kesir population is here described as a new species Poecilimon helleri sp. nov. The southern lineage of the species group exhibits characteristics of a chain species with three subspecies. Poecilimon luschani is retained as the species name by priority and the Poecilimon birandi is considered its subspecies as Poecilimon luschani birandistat. nov. A new subspecies Poecilimon luschani chobanovi ssp. nov. is described. The phylogenetic relationships amongst the proposed taxa are as follows: P. ledereri + (P. orbelicus + (P. tuncayi + (P. egrigozi + P. helleri) + (P. luschani luschani + P. luschani birandi + P. luschani chobanovi))).

}, keywords = {Anatolia, chain species, integrative taxonomy, Poecilimon luschani group}, doi = {10.1111/zoj.2013.169.issue-110.1111/zoj.12058}, url = {http://doi.wiley.com/10.1111/zoj.2013.169.issue-1https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/zoj.12058https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111\%2Fzoj.12058}, author = {Boztepe, Zehra and Kaya, Sarp and {\c C}iplak, Battal} } @article {12402, title = {Contribution to the taxonomy of Poecilimon bosphoricus species group (Orthoptera: Phaneropteridae): two new species from its core range}, journal = {Zootaxa}, volume = {3964}, year = {2015}, pages = {63}, issn = {1175-5326}, doi = {10.11646/zootaxa.3964.110.11646/zootaxa.3964.1.3}, url = {http://biotaxa.org/Zootaxa/issue/view/zootaxa.3964.1}, author = {Dragan Petrov Chobanov and Kaya, Sarp and {\c C}iplak, Battal} }