@article {58002, title = {Does body size predict the buzz-pollination frequencies used by bees?}, number = {24}, year = {2019}, month = {09/2019}, institution = { University of The Bahamas}, address = {Nassau}, abstract = {

We investigated the influence of body size in a specialized pollination system (buzz- pollination) where bees vibrate flowers to release pollen concealed within poricidal stamens (Buchmann, 1983; De Luca \& Vallejo-Mar\ín, 2013). Specifically, we explored how body size influences the frequency of buzz-pollination vibrations. Body size is expected to affect frequency as a result of the physical constraints it places on the indirect flight muscles that control the production of floral vibrations (King \& Buchmann, 2003). Larger insects beat their wings less rapidly than smaller-bodied insects when flying (Unwin \& Corbet, 1984), but whether similar scaling relationships exist with floral vibrations has not been widely explored. This is important because buzz pollinated flowers are hypothesized to be sensitive to certain frequencies that maximize the release of pollen from anthers (Harder \& Barclay, 1994). Therefore, if body size affects the range of frequencies a bee may generate this could limit the types of potential floral hosts that could be visited (Corbet \& Huang, 2014).

}, keywords = {Anthophila, buzz-ratio, floral vibrations, frequency, Pedicularis, Solanum}, author = {Paul Anthony De Luca} } @article {57995, title = {Potential effect of the global warming to the subfamily Lipotactinae (Orthoptera: Tettigoniidae) in China and acoustics data of Lipotactes truncatus Shi \& Li, 2009}, year = {2019}, abstract = {

Species in subfamily Lipotactinae are brachypterous with a small body and have limited dispersal ability. In this study, it\’s the first time to describe the male calling song of Lipotactes truncatus Shi \& Li, 2009. MaxEnt was used to predict the potential geographic distribution of Lipotactinae in present-day and year 2070, to explore responses to global warming of this subfamily in China. As for L. truncatus, two types of calling songs are observed with peak frequencies in the ultrasound range. With the trend of global warming, the suitable habitats of subfamily Lipotactinae will change in three ways: i) migrate to high latitude area; ii) migrate to the coastal region of south China; iii) migrate along altitude gradients in mountains. Some species will be locked into the \“sky islands\”, which will accelerate speciation process, with global warming.

}, keywords = {acoustics, China, global warming, Lipotactinae, suitable habitats}, doi = {10.1016/j.aspen.2019.12.007}, url = {https://linkinghub.elsevier.com/retrieve/pii/S1226861519302213}, author = {Wang, Tao and Shi, Fuming} } @article {57979, title = {Interspecific differences of stridulatory signals in three species of bark beetles from the genus Polygraphus Er. (Coleoptera: Curculionidae, Scolytinae) inhabiting the island of Sakhalin}, journal = {PeerJ Peprints}, year = {2019}, abstract = {

Stridulatory signals are involved in conspecific interactions between bark beetles (Coleoptera: Curculionidae, Scolytinae). In this study, we compared the qualitative profiles of acoustic signals in three species from the genus Polygraphus Er. Sympatry can be periodically observed in two of them \– P. proximus and P. subopacus. Sporadically they occur on the same plants. P. nigrielytris colonize distinctly different host plant species; however, on the island of Sakhalin it inhabits the same biotopes. The purpose of the study is to identify species-specific parameters and the extent of differences in stridulatory signals of these species. Airborne signals produced during the contact of males of the same species were experimentally recorded. Among tested parameters of stridulatory signals, as the most species-specific were noted: chirp duration, number of tooth-strikes per chirp, and intertooth-strike interval.

}, doi = {10.7287/peerj.preprints.27697v2}, url = {https://doi.org/10.7287/peerj.preprints.27697v2} } @article {57978, title = {Causes of variability in male vibratory signals and the role of female choice in Mantophasmatodea}, year = {2019}, abstract = {

Communication systems that involve substrate vibrations are increasingly a focus of research since this communication mode - recently termed biotremology - has been found to be remarkably widespread in the animal kingdom. Vibrational signals are often used during courtship and therefore underlie both natural and sexual selection. Mantophasmatodea use species- and sex-specific substrate vibrational signals during courtship. We explored whether male vibrational signals of the South African heelwalker Karoophasma biedouwense vary with temperature, body condition and age, and tested female preference towards various signal pattern combinations. We recorded male signals under varying temperatures and over 3.5 weeks after onset of signaling. Our results show that the temporal structure of male signals is modified by changes in temperature, and changes with male age. Other characteristics, especially duty cycles, are less affected, but correlate with body condition. Females responded along a broad spectrum of signaling patterns, indicating that they do not favor signals of males of a certain age or condition. They were selective towards the fine structure of vibratory signals, suggesting that pulse repetition times carry species-specific information. Mantophasmatodea thus use vibrational signals to identify and localize a mating partner, but presumably not for precopulatory mate selection.

}, doi = {10.1016/j.beproc.2019.103907}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0376635719301226}, author = {Eberhard, Monika J.B. and Metze, Dennis and K{\"u}pper, Simon C.} } @article {57968, title = {Characteristics of tiger moth (Erebidae: Arctiinae) anti-bat sounds can be predicted from tymbal morphology}, journal = {Frontiers in Zoology}, volume = {16}, year = {2019}, month = {Jan-12-2019}, abstract = {

Background: Acoustic signals are used by many animals to transmit information. Variation in the acoustic characteristics of these signals often covaries with morphology and can relay information about an individual\’s fitness, sex, species, and/or other characteristics important for both mating and defense. Tiger moths (Lepidoptera: Erebidae: Arctiinae) use modified cuticular plates called \“tymbal organs\” to produce ultrasonic clicks which can aposematically signal their toxicity, mimic the signals of other species, or, in some cases, disrupt bat echolocation. The morphology of the tymbal organs and the sounds they produce vary greatly between species, but it is unclear how the variation in morphology gives rise to the variation in acoustic characteristics. This is the first study to determine how the morphological features of tymbals can predict the acoustic characteristics of the signals they produce.

Results: We show that the number of striations on the tymbal surface (historically known as \“microtymbals\”) and, to a lesser extent, the ratio of the projected surface area of the tymbal to that of the thorax have a strong, positive correlation with the number of clicks a moth produces per unit time. We also found that some clades have significantly different regression coefficients, and thus the relationship between microtymbals and click rate is also dependent on the shared ancestry of different species.

Conclusions: Our predictive model allows the click rates of moths to be estimated using preserved material (e.g., from museums) in cases where live specimens are unavailable. This has the potential to greatly accelerate our understanding of the distribution of sound production and acoustic anti-bat strategies employed by tiger moths. Such knowledge will generate new insights into the evolutionary history of tiger moth anti-predator defenses on a global scale.

}, keywords = {Anti-predator defense, bioacoustics, Collections-based research, Lepidoptera, Predictive modeling}, doi = {10.1186/s12983-019-0345-6}, url = {https://frontiersinzoology.biomedcentral.com/articles/10.1186/s12983-019-0345-6}, author = {Dowdy, Nicolas J. and Conner, William E.} } @article {57934, title = {Spatial Mixing between Calling Males of Two Closely Related, Sympatric Crickets Suggests Beneficial Heterospecific Interactions in a NonAdaptive Radiation}, year = {2019}, abstract = {

Sympatry among closely related species occurs in both adaptive and nonadaptive radiations. Among closely related, sympatric species of a nonadaptive radiation, the lack of ecological differentiation brings species into continual contact where individuals are exposed to the risk of reproductive interference. Selection thus should cause divergence in multiple components mediating the reproductive boundary. Besides differentiation of reproductive signals per se, spatial segregation is a commonly proposed mechanism that can mitigate reproductive interference. Studying a pair of broadly sympatric, closely related cricket species from a nonadaptive radiation in Hawaii, we 1) quantified acoustic divergence of male songs and 2) tested alternative hypotheses of spatial distribution of calling males of the 2 species. Acoustic analyses of the recorded songs showed that, while the 2 species differed substantially in pulse rate, no spectral or fine temporal segregation of the pulse structure was evident, indicating the potential for acoustic masking. Moreover, we found that calling males of the 2 species are highly mixed both vertically and horizontally and showed the same preference for calling sites. More surprisingly, calling males were found to form mixed-species calling clusters where heterospecific males are closer to each other than conspecific males. Such an individual spacing pattern suggests low heterospecific aggression and/or high conspecific competition. Because females prefer higher sound intensity, heterospecific males may benefit, rather than interfere, with each other in attracting females. These findings offer a potential mechanism enabling species coexistence in sympatry.

}, keywords = {neighbor spacing, nonadaptive radiation, reproductive barrier, signaling site choice, spatial segregation, sympatric species}, doi = {10.1093/jhered/esz062}, url = {https://academic.oup.com/jhered/advance-article/doi/10.1093/jhered/esz062/5648033}, author = {Xu, Mingzi and Shaw, Kerry L} } @article {57933, title = {Effects of artificial light at night and male calling on movement patterns and mate location in field crickets}, year = {2019}, abstract = {

Anthropogenic factors, such as artificial light at night (ALAN), are increasingly linked to significant modifications in animal behaviours, such as foraging or migration. However, few studies have investigated directly whether the presence of ALAN affects the ability to find a mate (mate location). One direct effect of the presence of ALAN is that it can create a light barrier in an otherwise dark environment. This may have significant behavioural implications for nocturnally active species if it affects their ability to respond to potential mates. Our study, using the acoustically orienting Australian black field cricket, Teleogryllus commodus, determined experimentally whether the presence of a fragmented light environment influenced movement patterns of virgin females and males. Moreover, given the importance of male song for reproductive outcomes in this species, we assessed simultaneously whether such behaviours were modified by the presence of a male attraction call. We found that while initiation of movement was slower in the presence of ALAN, the behavioural shifts associated with its presence were relatively small compared to the influence of a broadcast male attraction call. The response to the male attraction call was typically stronger for females than for males, but both males and females modified aspects of behaviour when it was present regardless of whether their immediate environment was fragmented by artificial light at night or not. Artificial light at night may alter subtle aspects of movement and mating behaviour in this species, but ultimately does not provide a barrier to movement or mate location.

}, keywords = {Insect, light pollution, mating, phonotaxis, reproduction}, doi = {10.1016/j.anbehav.2019.10.016}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0003347219303483}, author = {Thompson, Eliza K. and Cullinan, Naomi L. and Jones, Ther{\'e}sa M. and Hopkins, Gareth R.} } @article {57932, title = {Notes on the ecology of the Tasmanian alpine cockroach Polyzosteria sp. Burmeister, 1838 (Blattodea: Polyzosteriinae) including parasitism by Gordian worms (Nematomorpha: Gordioida)}, journal = {The Tasmanian Naturalist}, volume = {141}, year = {2019}, chapter = {27}, author = {Richards, Karen and Spencer, Chris P} } @article {57922, title = {Stink Bug Communication with Multimodal Signals Transmitted through Air and Substrate}, journal = {Emerging Science Journal}, volume = {3}, year = {2019}, month = {Jan-12-2019}, pages = {407 - 424}, abstract = {

This review represents complex mechanisms and processes of multimodal communication in stink bugs. During reproductive behavior the airborne and substrate-borne signals enable mate recognition, mediate directionality of movement, eliminate rivals and motivate partners for copulation. Species specific characteristics prevent hybridization at various levels of mating behavior. Male sex and/or aggregation pheromones as uni- or multicomponent signals attract mates to land on the same plant and there, trigger females to call males by vibratory signals, transmitted through the plant. Communication during courtship runs at short distance with visual, airborne, substrate-borne and contact chemical and mechanical signals. Abdomen vibrations produce the main repertoire of female and male calling, courtship and rival vibratory signals. To increase their informational value, stink bugs tune signal frequency, amplitude and temporal characteristics with mechanical properties of plants. The airborne component of species non-specific and high amplitude signals, produced by body tremulation and wing buzzing enables communication contact between mates standing on mechanically isolated plants. Female vibratory signals increase the amount of male emitted pheromone and the latter keeps female calling. Interaction, synergy and characteristics of visual, contact chemical and vibratory signals, exchanged during courtship remain under-investigated. Female and male competition for access to copulation in imbalanced sex conditions is characterized by duetting with rival song vibratory signals. Different receptors in and on different parts of the body are able to detect with high sensitivity multimodal airborne and substrate-borne communication signals. The relevance of the multimodal communication for the reproductive success of stink bugs is discussed.

}, keywords = {communication, environment, insects, Multimodality, Pentatomidae, Signals, Transmission Medium}, doi = {10.28991/esj-2019-01203}, url = {https://ijournalse.org/index.php/ESJ/article/view/215https://ijournalse.org/index.php/ESJ/article/viewFile/215/pdfhttps://ijournalse.org/index.php/ESJ/article/viewFile/215/pdf}, author = {{\v C}okl, Andrej and {\v Z}uni{\v c}-Kosi, Alenka and Laumann, Raul Alberto} } @article {57887, title = {Effects of mining truck traffic on cricket calling activity}, year = {2019}, abstract = {

Anthropogenic noise is a global pollutant and several studies have identified its impact on wildlife. This research shows how the noise produced by mining affects crickets\’ acoustic communication. Two passive acoustic monitoring devices (SMII) were installed in a forest fragment located at 500 m from the Brucutu Mine in Brazil. Another two SMII were installed distant 2500 from the mine. The equipment was configured to record from 17:00 to 05:00 h during seven days in April 2013. The authors analyzed the spectral characteristics of acoustic activity of three species of crickets (Anaxipha sp., Gryllus sp., and a Podoscirtinae species) before, during, and after the passing of mine trucks. For comparison the authors analyzed the acoustic characteristics for Anaxipha sp. and Gryllus sp. found in the distant site. Results showed a calling interruption for all the species during truck transit. Gryllus sp. emitted calls with higher maximum frequencies, average power, and larger bandwidth in the site close to the mine. Podoscirtinae species emitted calls with lower minimum frequencies, higher average power, and large bandwidth in the close site. The authors show that insect acoustic behavior varies between areas with different levels of noise. The disruption of this behavior may have negative consequences for their reproductive success.

}, doi = {10.1121/1.5119125}, url = {http://asa.scitation.org/doi/10.1121/1.5119125}, author = {Duarte, Marina H. L. and Caliari, Ernesto P. and Marina D. A. Scarpelli and Lobregat, Gabriel O. and Young, Robert J. and Sousa-lima, Renata S.} } @article {57661, title = {Anatomy of the stridulation apparatus of the beech leaf-mining weevil and characterization of, and behavioral responses to, stridulation sounds}, year = {2019}, abstract = {

We investigated auditory signals and morphology of the stridulatory apparatus of the European beech leaf-mining weevil, Orchestes fagi L. (Coleoptera: Curculionidae), an invasive herbivore now established in Nova Scotia, Canada, to determine their potential for enhancing survey tools to monitor the spread of the species in Canada. We recorded and described sounds produced by adult O. fagi, analyzed the morphology of the stridulatory mechanism for intersexual differences and asymmetry, and examined behavioral responses elicited in conspecifics by playback of stridulation recordings. Adult O. fagi produced sounds under three conditions: male in distress, female in distress, and male in the presence of female. Female distress chirps lasted significantly longer than male distress chirps and male chirps in the presence of females, but peak frequencies and mean number of chirps per s did not differ significantly among the three groups. Morphology of the stridulation structures in male and female O. fagi was compared using scanning electron microscopy. Orchestes fagi have an elytro-tergal file- and scraper-type sound production apparatus, through which sound is produced upon anterior motion of the abdomen. Female O. fagi have a \‘pars stridens\’ that is longer and has more ridges than males. Width and number of ridges per length of pars stridens did not differ between the sexes. Evidence of asymmetry was found in male pars stridens, with the right side being longer than the left. Playback of recorded sounds to adult weevils suggests female O. fagi were repelled by sounds produced by distressed males.

}, keywords = {auditory recording, beechweevil, Coleoptera, Curculionidae, distressstridulation, insectbehavior, insectbioacoustics, Orchestes fagi, pars stridens, playback, scanningelectron microscopy, sexual dimorphism}, doi = {10.1111/eea.12844}, url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/eea.12844}, author = {Goodwin, Joel T.L. and Hillier, N. Kirk and Roscoe, Lucas E. and Sweeney, Jon D.} } @article {57660, title = {Feedforward discharges couple the singing central pattern generator and ventilation central pattern generator in the cricket abdominal central nervous system}, year = {2019}, abstract = {

We investigated the central nervous coordination between singing motor activity and abdominal ventilatory pumping in crickets. Fictive singing, with sensory feedback removed, was elicited by eserine-microinjection into the brain, and the motor activity underlying singing and abdominal ventilation was recorded with extracellular electrodes. During singing, expiratory abdominal muscle activity is tightly phase coupled to the chirping pattern. Occasional temporary desynchronization of the two motor patterns indicate discrete central pattern generator (CPG) networks that can operate independently. Intracellular recordings revealed a sub-threshold depolarization in phase with the ventilatory cycle in a singing-CPG interneuron, and in a ventilation-CPG interneuron an excitatory input in phase with each syllable of the chirps. Inhibitory synaptic inputs coupled to the syllables of the singing motor pattern were present in another ventilatory interneuron, which is not part of the ventilation-CPG. Our recordings suggest that the two centrally generated motor patterns are coordinated by reciprocal feedforward discharges from the singing-CPG to the ventilation-CPG and vice versa. Consequently, expiratory contraction of the abdomen usually occurs in phase with the chirps and ventilation accelerates during singing due to entrainment by the faster chirp cycle.

}, keywords = {Abdominal ventilation, Central pattern generation, Corollary discharge, Fictive singing, Motor systems coordination}, doi = {10.1007/s00359-019-01377-7}, url = {http://link.springer.com/10.1007/s00359-019-01377-7}, author = {Sch{\"o}neich, Stefan and Hedwig, Berthold} } @article {57623, title = {New data on acoustic signals of Stauroderus scalaris (Orthoptera: Acrididae) from different local populations with a note about its parasite from the genus Blaesoxipha (Diptera: Sarcophagidae)}, year = {2019}, abstract = {

Calling acoustic signals of Stauroderus scalaris males are described for the first time, the oscillograms from Samarskaya Luka and the Republic of Tuva are published. Comparative analysis of parameters of calling signals of this species from different discrete populations (Western Europe, South Kazakhstan, Kyrgyzstan, and Russia) was carried out. High degree of acoustic conservatism of sound signals of the dark-winged grasshopper is shown for the entire area. Moreover, a parasite fly of orthopteran insects, Blaesoxipha redempta, is reported for the first time on the territory of Samarskaya Luka (Zhiguli State Nature Biosphere Reserve, Bakhilova Polyana settlement). It is the first find of a representative of the genus Blaesoxipha in the reserve, emerged from a S. scalaris male specimen. Photographs of genital apparatus of the male fly specimen are given; it is well distinguished from closely related species by the shape of cerci and phallus. Possible infection strategy of the parasitic fly concerning acoustically active orthopteran hosts is discussed.

}, keywords = {acoustic conservatism, calling signals, dark-winged grasshopper, first record, invasion strategy, orthopteran insects, parasitic flies, Samarskaya Luka, Tuva}, doi = {10.24189/ncr.2019.001}, url = {http://ncr-journal.bear-land.org/article/177}, author = {Benediktov, Alexander А. and Belyaev, Oleg A.} } @article {57610, title = {Noisy neighbours among the selfish herd: a critical song distance mediates mate recognition within cicada emergences (Hemiptera: Cicadidae)Abstract}, year = {2019}, abstract = {

Cicadas probably experience mate recognition challenges as a result of the densities that may occur during adult emergence events, and in Okanagana, the most speciose genus of North American cicadas, high alpha diversities during protoperiodical emergences will exacerbate the mate recognition problem. Using 227 songs from 23 taxa, a linear plateau model regressed recognition potential, estimated from linear discriminant analysis, against song distance, revealing a critical song distance of 0.728 standard deviations in z-transformed song parameter space accompanied by a recognition of 91.6\%. Based on detailed examination of museum specimen localities, field observations and habitat, taxa were classified as sympatric or allopatric. Sympatric species were separated by song distances that were significantly greater than this critical distance. As expected for mate recognition characters, little within-species variance was observed in the songs of most species, and the relationship between increases in syllable rate and improved recognition was one of diminishing returns. For several taxa that sang with extreme syllable rates of high variance, a mate recognition \– sexual selection continuum is proposed. Along this continuum rapid rates simultaneously prevent mate recognition errors while signalling male quality to females.

}, keywords = {California, female preference, indicator trait, linear discriminant function, linear plateau analysis, Okanagana, receiver bias, sexual selection}, doi = {10.1093/biolinnean/blz132}, url = {https://academic.oup.com/biolinnean/advance-article/doi/10.1093/biolinnean/blz132/5602697}, author = {Chatfield-Taylor, Will and Jeffrey A. Cole} } @article {57603, title = {Experience modulates an insect{\textquoteright}s response to anthropogenic noise}, year = {2019}, abstract = {

In response to anthropogenic noise, vertebrates express modified acoustic communication signals either through individual plasticity or local population adaptation. In contrast, how insects respond to this stressor is poorly studied. Field crickets Gryllus bimaculatus use acoustic signals to attract and locate mates and are commonly found in noisy roadside environments, offering a powerful system to study the effects of anthropogenic noise on insect communication. Rapid repetition of sexual calls (chirps) is essential to attract females, but calling incurs energetic costs and attracts predators. As a result, males are predicted to reduce calling rates when background noise is high. Here, we combine observations and experimental playbacks to show that the responses of field cricket males to anthropogenic noise also depend on their previous experience with passing cars. First, we show that males living on highway edges decrease their chirp rate in response to passing cars. To assess whether this behavioral response depends on previous exposure to car noise, we then broadcast recordings of car noise to males located at different distances from the road and, therefore, with different previous exposure to car noise. Although all tested individuals responded to broadcasted traffic noise, males closest to the road decreased their chirp rate less than individuals calling further from the road. These results suggest that regular exposure to anthropogenic noise may decrease individuals\’ sensitivity and behavioral responses to noise, allowing them to maintain effective signaling rates. Behavioral plasticity modulated by experience may thus allow some insect species to cope with human-induced environmental stressors.

}, keywords = {acoustic adaptation, anthropogenic noise, behavioral plasticity, Gryllus bimaculatus, Insect, sexual signals}, doi = {10.1093/beheco/arz159}, url = {https://academic.oup.com/beheco/advance-article/doi/10.1093/beheco/arz159/5574703}, author = {Gallego-Abenza, Mario and Mathevon, Nicolas and Wheatcroft, David}, editor = {Candolin, Ulrika} } @article {57427, title = {Katydids (Orthoptera: Tettigoniidae) of Gorongosa National Park and Central Mozambique}, journal = {Zootaxa}, volume = {4682}, year = {2019}, month = {Apr-10-2019}, pages = {1 - 119}, abstract = {

A list of 60 species of the Tettigoniidae (Orthoptera) recorded from Gorongosa National Park and provinces Sofala and Manica in central Mozambique is provided and their natural history is discussed. Of these, 58 species are illustrated and bioacoustic data are presented for 47 species. Two new genera and 9 new species are described: Gorongosa carri gen. et sp. n., Ovonotus abreuae gen. et sp. n., Afroagraecia muagurai sp. n., Enyaliopsis iaculator sp. n., Eurycorypha parkeri sp. n., Eurycorypha stalmansi sp. n., Eulioptera carolli sp. n., Eulioptera mutembai sp. n., and Parpyrrhicia guytonae sp. n. Four species of Ruspolia are recognized as potentially new and their bioacoustic data are presented. Pseudorhynchus pungens meridionalis Ragge, 1969 is synonymized with Pseudorhynchus pungens pungens (Schaum, 1853); Angustithorax spiniger Massa, 2015 is synonymized with Oxyecous magnus Ragge, 1956; and the synonymy of Lanista africana (Walker, 1870) with Lanista annulicornis (Walker, 1869) is reversed. Two species, G. carri and O. abreuae, appear to be endemic to Mt. Gorongosa and 24 species are recorded for the first time from Mozambique.

}, keywords = {bioacoustics, endemism, katydids, Mozambique, new genera, new species, Orthoptera, species list}, issn = {1175-5326}, doi = {10.11646/zootaxa.4682.110.11646/zootaxa.4682.1.1}, url = {https://www.biotaxa.org/Zootaxa/issue/view/zootaxa.4682.1https://www.biotaxa.org/Zootaxa/article/view/zootaxa.4682.1.1}, author = {Piotr Naskrecki and Guta, Ricardo} } @mastersthesis {57408, title = {TRANS-GENERATIONAL AND REPRODUCTIVE IMPACTS OF ACUTE EARLY-LIFE RADIATION ON THE HOUSE CRICKET, ACHETA DOMESTICUS}, year = {2019}, abstract = {

Stress is ubiquitous for all organisms, however, impacts vary depending on type and strength of the stressor, as well as the organism\’s tolerance. Moreover, stress responses can be described by several models; linear, threshold, or hormetic. Generally ionizing radiation has been described by a \“linear no threshold\” model where all exposure has negative impacts. However, considerable research, both past and present, suggests that a \“hormetic\” or threshold model may better describe radiation exposure. My research focused on adult male house crickets, (Acheta domesticus), and the effects of early-life radiation on a variety of life history and reproductive traits, molecular biomarkers, and trans-generational impacts. Each life history and reproductive trait was also analyzed for its dose-response relationship.

Males exposed to radiation showed threshold responses in both hatching success (of 200 eggs) as well as mating success. Doses below 7Gy showed no decline in hatching success nor mating success, whereas above this threshold severe declines occurred, with 12Gy males being sterile. Sexual signals, both acoustic and chemical, were also altered by exposure. Life history traits in F0 males included a dose-dependent reduction in growth rate. Hormetic responses emerged in longevity and survivorship in 7Gy and 10Gy males and their offspring. The dose response relationship for most life-history and reproductive traits analyzed were best described by quadratic and non-linear models. Responses to radiation were also reflected by DNA methylation in F0 and F1 offspring. Generally, radiation impacts on life-history and reproductive traits were best described by non-linear modelling. Multiple aspects of sexual signalling were disrupted by radiation, including courtship signalling and pheromone signatures. Finally, radiation impacts emerged in F1 offspring that expressed significantly extended longevity and superior survivorship with no large reduction in growth rate.

}, author = {TAMARA M. FUCIARELLI} } @article {57399, title = {Discovery of an acoustically locating parasitoid with a potential role in divergence of song types among sympatric populations of the bush cricket Mecopoda elongata}, year = {2019}, abstract = {

The bush cricket Mecopoda elongata provides a striking example of sympatric intraspecific divergence in mating signals. Five completely dis- tinct song types are found in various parapatric and sympatric locations in South India. While there is convincing evidence that population diver- gence in M. elongata is being maintained as a result of divergence in acous- tic signals, cuticular chemical profiles, and genital characters, the causes of the evolution of such divergence in the first place are unknown. We describe the discovery of a tachinid parasitoid with an orthopteroid hear- ing mechanism affecting M. elongata. This parasitoid may have a role in driving the extraordinary divergence that had occurred among M. elongata song types. Over two years we sampled individuals of three sympatric song types in the wild and retained individuals in captivity to reveal rates of parasitization. We found that all three song types were infected with the parasitoid but that there were significant differences among song types in their probability of being infected. The probability of tachinid parasitiza- tion also differed between the two sampling periods. Therefore, it is pos- sible that parasitoid infection plays a role in song type divergence among sympatric bush cricket populations.

}, keywords = {cryptic species, katydid, speciation, Tachinidae}, doi = {10.3897/jor.28.34115}, url = {https://jor.pensoft.net/article/34115/}, author = {Dutta, Rochishnu and Reddy, Manjunatha and Tregenza, Tom} } @article {57396, title = {New Data on Vibrational Communication in the Beetle Acanthoscelides obtectus (Coleoptera, Bruchidae)}, year = {2019}, abstract = {

Many Bruchidae species are quarantine pests and are widely used as model species. However, as far as we know, acoustic communication has never been studied in detail in this group. Below we present the first data on the repertoire and emission mechanisms of acoustic communication in the bean weevil Acanthoscelides obtectus. Three types of signal emission were recorded in A. obtectus: striking the head and abdomen against the substrate, abdominal tremulations, and wing vibrations. Two types of signals were recorded in males, and one type, in females. All the acoustic signals recorded in A. obtectus contained both stable (pulse duration, pulse period: CV = 5\–12\%) and variable (duration of the pulse series: CV = 50\%) signal elements. The frequency parameters showed low variation in all the signals (CV = 5\–11\%). Moreover, the dominant frequencies were similar in all the signal types (889\–1158 Hz).

}, doi = {10.1134/S0013873819040043}, author = {L. S. Shestakov and A. A. Kasparson} } @article {57391, title = {Effects of Hypoxia on Acoustic Activity of Two Stored-Product Pests, Adult Emergence, and Grain Quality}, year = {2019}, abstract = {

Modified atmospheres such as hermetic storage are widely used for the control of stored grain insect pests. To improve their effectiveness, there is need to better understand insect responses to low-oxygen environments. Adult Callosobruchus maculatus F. (Coleoptera: Chrysomelidae: Bruchinae) on cowpea and Sitophilus oryzae L. (Coleoptera: Curculionidae) on wheat were exposed to hypoxia treatments consisting of 1, 3, and 5\% oxygen levels for 14 d. Acoustic activity was monitored during the experiment, and insect mortality and grain quality were examined immediately after the hypoxia treatments. Adult emergence was assessed 45 d post-treatment. All three hypoxia treatments eliminated acoustic activity of both species within 4 d. There was neither insect survival for both species nor significant grain damage immediately after 14-d exposure to hypoxia treatments. No adult insects emerged 45 d post-exposure on grains maintained at 1\% oxygen level for 14 d. However, at 3 and 5\% oxygen levels, there were eggs on cowpea, holes in wheat, and emerging adults for both insect species 45 d post-exposure. Although insect activity ceased within 4 d when hypoxia was maintained below 5\%, there is need to explore exposure beyond 14 d for 3 and 5\% oxygen levels, to ensure to avoid potential adult emergence from eggs and other insect life stages post-treatments. Maintaining 3\–5\% hypoxia conditions for a longer duration would ensure insufficient oxygen is available for progeny development.

}, keywords = {cowpea, hermetic storage, insect pest, modified atmosphere, wheat}, doi = {10.1093/jee/toz110}, url = {https://academic.oup.com/jee/article/112/4/1989/5488927}, author = {Anastasia W. Njoroge and Richard W. Mankin and Smith, Bradley and Baributsa, Dieudonne} } @article {57384, title = {Bark beetles use a spring-loaded mechanism to produce variable song patterns}, year = {2019}, abstract = {

Many insects vary their song patterns to communicate different messages, but the underlying biomechanisms are often poorly understood. Here, we report on the mechanics of sound production and variation in an elytro-tergal stridulator, male Dendroctonus valens bark beetles. Using ablation experiments coupled with high-speed video and audio recordings, we show that: (1) chirps are produced using a stridulatory file on the left elytron (forewing) and a protrusion (plectrum) on the seventh abdominal segment; (2) chirps are produced by \‘spring stridulation\’, a catch-and-release mechanism whereby the plectrum catches on a file tooth and, upon release, springs forward along the file; and (3) variability in chirp types is caused by introducing multiple catch-and-release events along the file to create regular interruptions. These results provide experimental evidence for the mechanics of elytro-tergal stridulation, and provide insight into how an insect can incorporate variability into its acoustic repertoire using a spring-loaded mechanism.

}, keywords = {Acoustic, communication, Dendroctonus valens, Insect, sound, stridulation}, doi = {10.1242/jeb.190660}, url = {http://jeb.biologists.org/lookup/doi/10.1242/jeb.190660}, author = {Lindeman, Amanda A. and Yack, Jayne E.} } @article {57375, title = {Bioacoustics review of Anatolian species of the predatory bush-cricket genus Saga (Orthoptera: Tettigoniidae: Saginae) with the description of a new species}, year = {2019}, abstract = {

The genus Saga is a genus of generally large predatory bush-cricket species. It includes 13 taxa in the Palaearctic region. In this research, eight species belonging to Saga (Tettigoniidae, Saginae) were sampled during field studies in different regions of Anatolia of Turkey between 2010 and 2018 (except one specimen). The bioacoustic parameters of these species recorded during the field or in laboratory conditions and the male calling song descriptions, as well as the oscillographic illustrations and distribution maps are given. A new population of Saga found from the South-Eastern Taurus (Hakkari province), which is affiliated to a new species and shows similarity to S. ephippigera, along with the morphological and bioacoustical descriptions of Saga hakkarica sp. n. {\c S}irin \& Taylan from Turkey, are also given. The relationships between the new species and the closest taxa are discussed using morphological and bioacoustical characters. The structural investigations of the male calling songs reveal three different bioacoustic groups affiliated to eight Anatolian Saga species; as (i) Ephippigera group (S. syriaca + (S. ephippigera + Saga hakkarica), (ii) Natoliae group (S. natoliae + (S. beieri + (S. longicaudata + S. puella) and (iii) S. cappadocica.

}, keywords = {Anatolia, bioacoustics, Orthoptera, Saga, Saga hakkarica sp.nov., Tettigonidae}, doi = {10.11646/zootaxa.4664.1.3}, url = {https://www.biotaxa.org/Zootaxa/issue/view/zootaxa.4664.1}, author = {{\c S}{\.I}R{\.I}N, DEN{\.I}Z and TAYLAN, MEHMET SA{\.I}T and Mol, Abbas} } @article {57368, title = {Oecanthus mhatreae sp. nov. (Gryllidae: Oecanthinae): A new species of tree cricket from Mexico, with an irregular song pattern and unique chirp-like trill configuration}, journal = {Journal of Orthoptera Research}, volume = {28}, year = {2019}, month = {Apr-08-2021}, pages = {137 - 143}, abstract = {

A new species of Oecanthus is described from Mexico. Oecanthus mhatreae sp. nov. occurs in central Mexico in the understory of tropical deciduous forest. Oecanthus mhatreae sp. nov. is currently known only from the Corregidora area of the Mexican state of Quer\étaro. The widened tegmina and chirp-like brief trills song are consistent with some members of the rileyi species group; however, this new species of tree cricket is different in several aspects. The chirp-like brief trills are generally irregularly spaced, it does not have the expected grouping of the chirp pulses, and the colors of buff, light olive green, or light brown are vastly different than the four known pale green species in the rileyi species group of the Western Hemisphere. Morphology, habitat, and song details of this new species, with the common name of Otomi tree cricket, are provided in this paper. Video can be viewed at www.oecanthinae.com.

}, issn = {1082-6467}, doi = {10.3897/jor.28.33781}, url = {https://jor.pensoft.net/article/33781}, author = {Collins, Nancy and Coronado Gonz{\'a}lez, Isabel Margarita and Govaerts, Bruno Victor Alfons} } @article {57354, title = {An annotated check-list of Orthoptera of Tuva and adjacent regions. Part 2. Suboder Caelifera. Tridactylidae, Tetrigidae, Acrididae: Melanoplinae, Calliptaminae, and Gomphocerinae (except Gomphocerini)}, journal = {Far Eastern entomologist}, volume = {389}, year = {2019}, month = {Oct-08-2020}, pages = {7 - 44}, abstract = {

The first annotated checklist of the short-horned Orthoptera (Caelifera) of Tuva and adjacent territories is presented. This list is based on numerous published and unpublished data. A total of 42 species belonging to 3 families, namely Tetrigidae (6), Tridactylidae (1), and Acrididae (35 species from the subfamilies Melanoplinae and Calli- ptaminae and from the gomphocerine tribes Chrysochraontini, Arcypterini, Aulacobothrini, and Stenobothrini), are known as occurring in Tuva. Seven species are recorded from the region for the first time, namely Tetrix similans (Bey-Bienko), Zubovskya koeppeni (Zubovsky), Podismopsis poppiusi (Miram), P. jacuta Miram, Stenobothrus nigromaculatus (Herrich-Sch\äfer), S. carbonarius (Eversmann), and Omocestus petraeus (Brisout de Barneville). Zubovskya mongolica Storozhenko, comb. resurr. is mentioned for the southern part of the Republic of Khakassia for the first time. The first record of Podismopsis jacuta Miram in Krasnoyarsk Region is also published. At least three species are known from the adjacent areas and listed as probably occurring in the region.

}, keywords = {Caelifera, fauna, grasshoppers, new records, pygmy grasshoppers, pygmy mole crickets, Russia, Siberia}, issn = {1026051X}, doi = {10.25221/fee10.25221/fee.389.2}, url = {http://www.biosoil.ru/FEE/}, author = {Sergeev, M.G. and Storozhenko, S.Yu. and Benediktov, A.A.} } @article {57347, title = {Phylogenetic relationships and phylogeography of the genus Sinocyrtaspis Liu, 2000 (Orthoptera: Tettigoniidae: Meconematinae) reveal speciation processes related to climate change}, journal = {Systematic Entomology}, year = {2019}, month = {Aug-08-2020}, abstract = {

Species of Sinocyrtaspis Liu inhabit moist montane environments in south China, and occur allopatrically in restricted regions without overlapping areas. This study presents the first phylogeny of Sinocyrtaspis based on one nuclear DNA sequence [partial ITS1-5.8S rDNA-ITS2 (ITS)] as well as two mitochondrial genes [cytochrome oxidase subunit I (COI) and cytochrome b (CYTB)] using Bayesian inference and maximum likelihood. In addition, reconstructing the ancestral geographical range on the basis of the combined genes and distribution information, MaxEnt modelling was used to predict potential distribution areas in the Last Glacial Maximum (LGM), the mid-Holocene, the present-day and in the year 2070, in order to understand speciation processes and responses to climate change in this genus. The phylogenetic analyses supported the monophyly of Sinocyrtaspis. The results of species delimitation confirmed seven Sinocyrtaspis species and that the speciation events mainly occurred in the late Miocene to early Pliocene when the climate became colder and drier. The conclusions of the phylogeographical analysis are as follows: (i) the centres of origin of Sinocyrtaspis were Hunan and north-east Guangxi; (ii) two dispersal routes became obvious with the final destinations of Jiangxi and Zhejiang, respectively; (iii) after the Miocene cooling period, the ancestor species partly remained in Guizhou and partly spread; (iv) as a response to climate change, species altered distribution areas by moving along altitude gradients in mountain regions, whereas the anthropogenic global warming trend has promoted some species moving to high-latitude areas or caused population differentiation.

}, issn = {0307-6970}, doi = {10.1111/syen.12384}, url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/syen.12384https://onlinelibrary.wiley.com/doi/pdf/10.1111/syen.12384https://onlinelibrary.wiley.com/doi/pdf/10.1111/syen.12384https://onlinelibrary.wiley.com/doi/full-xml/10.1111/syen.12384}, author = {Wang, Tao and Zhu, Qidi and Heller, Klaus-Gerhard and Zhou, Zhijun and Shi, Fuming} } @article {53598, title = {First description of sound emission of Rhaphiptera affinis Thomson, 1868 (Cerambycidae: Lamiinae: Pteropliini)}, journal = {Zootaxa}, volume = {4567}, year = {2019}, month = {Jun-03-2020}, pages = {580}, issn = {1175-5326}, doi = {10.11646/zootaxa.4567.310.11646/zootaxa.4567.3.9}, url = {https://biotaxa.org/Zootaxa/issue/view/zootaxa.4567.3https://biotaxa.org/Zootaxa/article/view/zootaxa.4567.3.9}, author = {HEPP, F{\'A}BIO and Andressa M. Bezerra and Juan P. Botero} } @article {53573, title = {Deaf moths employ acoustic M{\"u}llerian mimicry against bats using wingbeat-powered tymbals}, journal = {Scientific Reports}, volume = {9}, year = {2019}, month = {Jan-12-2019}, abstract = {

Emitting ultrasound upon hearing an attacking bat is an effective defence strategy used by several moth taxa. Here we reveal how Yponomeuta moths acquire sophisticated acoustic protection despite being deaf themselves and hence unable to respond to bat attacks. Instead, flying Yponomeuta produce bursts of ultrasonic clicks perpetually; a striated patch in their hind wing clicks as the beating wing rotates and bends. This wing structure is strikingly similar to the thorax tymbals with which arctiine moths produce their anti-bat sounds. And indeed, Yponomeuta sounds closely mimic such arctiine signals, revealing convergence in form and function. Because both moth taxa contain noxious compounds, we conclude they are mutual M\üllerian acoustic mimics. Yponomeuta\’s perpetual clicking would however also attract bat predators. In response, their click amplitude is reduced and affords acoustic protection just as far as required, matching the distance over which bat biosonar would pick up Yponomeuta echoes anyway \– advanced acoustic defences for a deaf moth.

}, doi = {10.1038/s41598-018-37812-z}, url = {http://www.nature.com/articles/s41598-018-37812-z}, author = {O{\textquoteright}Reilly, Liam J. and Agassiz, David J. L. and Neil, Thomas R.} } @article {53525, title = {A new species of Landrevinae (Orthoptera) from the Philippines, with notes on Endodrelanva and Endolandrevus (Orthoptera: Gryllidae; Gryllinae; Landrevini)}, journal = {Zootaxa}, volume = {4544}, year = {2019}, month = {Nov-01-2019}, pages = {285}, abstract = {

Owing to the cryptic behavior and morphology of many Southeast Asian Landrevinae, new species are still being discovered in unexplored parts of the region. Here, we describe a new species: Endodrelanva siargaoensis sp. nov. We also recorded and describe the calling song of the new species. Owing to the morphological similarities between species of Endodrelanva Gorochov, 2000 and Endolandrevus Saussure, 1877, we also provide a short review of the two genera and list their characters for comparison.

}, keywords = {bioacoustics, Biogeography, Grylloidea, Orthoptera, Southeast Asia, taxonomy}, issn = {1175-5326}, doi = {10.11646/zootaxa.4544.210.11646/zootaxa.4544.2.8}, url = {https://biotaxa.org/Zootaxa/issue/view/zootaxa.4544.2https://biotaxa.org/Zootaxa/article/view/zootaxa.4544.2.8}, author = {TAN, MING KAI and GOROCHOV, ANDREJ V. and Jessica B. Baroga-Barbecho and YAP, SHERYL A.} } @article {53519, title = {Vibrations in hemipteran and coleopteran insects: behaviors and application in pest management}, journal = {Applied Entomology and Zoology}, year = {2019}, month = {Nov-01-2019}, abstract = {

Many groups of insects utilize substrate-borne vibrations for communication. They display various behaviors in response to vibrations in sexual and social communication and in predator\–prey interactions. Although the number of reports on com- munication and behaviors using vibrations has continued to increase across various insect orders, there are several studies of the exploitation of vibrations for pest management in Hemiptera and Coleoptera. Here, we review the studies of behaviors and communication using vibrations in hemipteran and coleopteran insects. For instance, pentatomid bugs display species- and sex-specific vibrational signals during courtship, whereas cerambycid beetles show startle responses to vibrations in the context of predator\–prey interactions. Concepts and case studies in pest management using vibrations\—especially regarding the disruption of communication and behavior\—are also presented.

}, keywords = {Behavioral disruption, communication, Pest control, Sense organ, vibrational signals}, issn = {0003-6862}, doi = {10.1007/s13355-018-00603-z}, url = {http://link.springer.com/10.1007/s13355-018-00603-z}, author = {Takanashi, Takuma and Uechi, Nami and Tatsuta, Haruki} } @article {53499, title = {Innate releasing mechanisms and fixed action patterns: basic ethological concepts as drivers for neuroethological studies on acoustic communication in Orthoptera}, journal = {Journal of Comparative Physiology A}, year = {2019}, month = {Jul-01-2019}, abstract = {

This review addresses the history of neuroethological studies on acoustic communication in insects. One objective is to reveal how basic ethological concepts developed in the 1930s, such as innate releasing mechanisms and fixed action patterns, have influenced the experimental and theoretical approaches to studying acoustic communication systems in Orthopteran insects. The idea of innateness of behaviors has directly fostered the search for central pattern generators that govern the stridulation patterns of crickets, katydids or grasshoppers. A central question pervading 50 years of research is how the essential match between signal features and receiver characteristics has evolved and is maintained during evolution. As in other disciplines, the tight interplay between technological developments and experimental and theoretical advances becomes evident throughout this review. While early neuroethological studies focused primarily on proximate questions such as the implementation of feature detectors or central pattern generators, later the interest shifted more towards ultimate questions. Orthoptera offer the advantage that both proximate and ultimate questions can be tackled in the same system. An important advance was the transition from laboratory studies under well-defined acoustic conditions to field studies that allowed to measure costs and benefits of acoustic signaling as well as constraints on song evolution.

}, keywords = {acoustic communication, Central pattern generators, Coevolution, Genetic coupling, Sender{\textendash}receiver evolution}, issn = {0340-7594}, doi = {10.1007/s00359-018-01311-3}, url = {http://link.springer.com/10.1007/s00359-018-01311-3}, author = {Bernhard Ronacher} } @article {53496, title = {Genetic divergence, population differentiation and phylogeography of the cicada Subpsaltria yangi based on molecular and acoustic data: an example of the early stage of speciation?}, journal = {BMC Evolutionary Biology}, volume = {19}, year = {2019}, month = {Jan-12-2019}, abstract = {

Background
Geographical isolation combined with historical climatic fluctuations have been identified as two major factors that contribute to the formation of new species. On the other hand, biotic factors such as competition and predation are also able to drive the evolution and diversification of organisms. To determine whether geographical barriers contributed to population divergence or speciation in the rare endemic cicada Subpsaltria yangi the population differentiation, genetic structure and phylogeography of the species were investigated in the Loess Plateau and adjacent areas of northwestern China by analysing mitochondrial and nuclear DNA and comparing the calling song structure of 161 male individuals.

Results
The results reveal a low level of genetic differentiation and relatively simple phylogeographic structure for this species, but two independent clades corresponding to geographically isolated populations were recognised. Genetic and geographical distances were significantly correlated among lineages. Results of divergence-time estimation are consistent with a scenario of isolation due to glacial refugia and interglacial climate oscillation in northwestern China. Significant genetic divergence was found between the population occurring in the Helan Mountains and other populations, and recent population expansion has occurred in the Helan Mountains and/or adjacent areas. This population is also significantly different in calling song structure from other populations.

Conclusions
Geographical barriers (i.e., the deserts and semi-deserts surrounding the Helan Mountains), possibly coupled with related ecological differences, may have driven population divergence and allopatric speciation. This provides a possible example of incipient speciation in Cicadidae, improves understanding of population differentiation, acoustic signal diversification and phylogeographic relationships of this rare cicada species of conservation concern, and informs future studies on population differentiation, speciation and phylogeography of other insects with a high degree of endemism in the Helan Mountains and adjacent areas.

}, keywords = {acoustic signals, Allopatric speciation, Cicadidae, Geographical isolation, Northern China Population differentiation}, doi = {10.1186/s12862-018-1317-8}, url = {https://bmcevolbiol.biomedcentral.com/articles/10.1186/s12862-018-1317-8}, author = {Liu, Yunxiang and Dietrich, Christopher H. and Wei, Cong} } @article {53494, title = {Automated classification of bees and hornet using acoustic analysis of their flight sounds}, journal = {Apidologie}, year = {2019}, month = {Jul-01-2019}, abstract = {

To investigate how to accurately identify bee species using their sounds, we conducted acoustic analysis to identify three pollinating bee species (Apis mellifera, Bombus ardens, Tetralonia nipponensis) and a hornet (Vespa simillima xanthoptera) by their flight sounds. Sounds of the insects and their environment (background noises and birdsong) were recorded in the field. The use of fundamental frequency and mel-frequency cepstral coefficients to describe feature values of the sounds, and supported vector machines to classify the sounds, correctly distinguished sound samples from environmental sounds with high recalls and precision (0.96\–1.00). At the species level, our approach could classify the insect species with relatively high recalls and precisions (0.7\–1.0). The flight sounds of V.s. xanthoptera, in particular, were perfectly identified (precision and recall 1.0). Our results suggest that insect flight sounds are potentially useful for detecting bees and quantifying their activity.

}, keywords = {acoustic analysis, Hymenoptera, machine learning, species classification}, issn = {0044-8435}, doi = {10.1007/s13592-018-0619-6}, url = {http://link.springer.com/10.1007/s13592-018-0619-6}, author = {Kawakita, Satoshi and Ichikawa, Kotaro} } @article {53452, title = {Egg-Cracking Vibration as a Cue for Stink Bug Siblings to Synchronize Hatching}, journal = {Current Biology}, volume = {29}, year = {2019}, month = {Jan-01-2019}, pages = {143 - 148.e2}, abstract = {

Egg clutches of many animals hatch synchronously due to parental control [1, 2] or environmental stimu- lation [3, 4]. In contrast, in some animals, embryos actively synchronize their hatching timing with their siblings to facilitate adaptive behavior in sibling groups, such as mass migration [5, 6]. These em- bryos require synchronization cues that are detect- able from eggs and indicative of when the siblings hatch, such as pre-hatching vocalizations in birds and crocodiles [7, 8]. Previous studies, using methods including artificial presentation of non-spe- cific mechanical stimuli, demonstrated that vibra- tions or other mechanical forces caused by sibling movements are cues used by some turtles and in- sects [9\–13]. However, there is no evidence about which movements of tiny embryos or hatchlings, among multiple possibilities, can generate mechani- cal cues actually detectable through eggs. Here, we show that embryos of the brown marmorated stink bug, Halyomorpha halys, synchronize hatching by responding to single pulsed vibrations generated when siblings crack open their eggshells. An egg- cracking vibration seems to be transmitted to distant eggs within a clutch while still maintaining its func- tion as a cue, thus leading to the highly synchronized hatching pattern previously reported [14]. In this spe- cies, it is possible that embryos attempt to hatch with short lags after earlier-hatched siblings to avoid egg cannibalism by them [14]. The present study illus- trates the diversity of social-information use by ani- mal embryos for success in the sibling group.

}, issn = {09609822}, doi = {10.1016/j.cub.2018.11.024}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0960982218314908https://api.elsevier.com/content/article/PII:S0960982218314908?httpAccept=text/xmlhttps://api.elsevier.com/content/article/PII:S0960982218314908?httpAccept=text/plain}, author = {Endo, Jun and Takanashi, Takuma and Mukai, Hiromi and Numata, Hideharu} }