@article {53393, title = {Anthropogenic calling sites boost the sound amplitude of~advertisement calls produced by a tropical cricket}, journal = {Animal Behaviour}, volume = {142}, year = {2018}, month = {Jan-08-2018}, pages = {31 - 38}, abstract = {

Acoustic signals are widely used as sexual displays to attract mates. The choice of display site can strongly influence the male call characteristics and their attractiveness to females. Males can improve the conspicuousness of their signals by increasing sound amplitude and expanding their broadcast area thereby reaching more potential mating partners and influencing female choice. Insects possess a rather limited degree of signal plasticity. To increase the intensity of their calls, insects have been known to manipulate and engineer their display locations. Mole crickets, for example, build burrows that are shaped like horns, designing the burrow such that its resonance closely matches that of their call frequency, thereby boosting sound amplitude. Tree crickets manipulate plant leaves, using them as baffles for optimal sound radiation. In this study, we show for the first time that an insect species can enhance its advertisement calls by using novel, anthropogenic environments as singing sites. During this study, the tropical cricket Anurogryllus muticus was frequently found singing beside the walls of houses, on concrete stairs or in storm drains. These locations significantly increased the sound amplitude of its calls, by an average of 13 and 7 dB SPL, respectively, as measured above and in front of the singing animals compared to the sound amplitude measured in their natural grassland habitat. To evaluate the effect of calling site choice on the male\&$\#$39;s life span, we conducted a 35-day population survey using the mark and recapture method. Our results revealed that those males that called in grassland habitat without occupying burrows had the shortest minimum life spans.

}, keywords = {acoustic signalling, active space, anthropogenic influence, display sites, increased song amplitude, mate attraction, minimum life span, singing site preference}, issn = {00033472}, doi = {10.1016/j.anbehav.2018.05.021}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0003347218301726https://api.elsevier.com/content/article/PII:S0003347218301726?httpAccept=text/xmlhttps://api.elsevier.com/content/article/PII:S0003347218301726?httpAccept=text/plain}, author = {Erregger, Bettina} } @article {53142, title = {Acoustic communication and baffling behaviors of crickets}, journal = {The Florida Entomologist}, volume = {65}, year = {1982}, pages = {33{\textendash}44}, author = {Forrest, TG} } @article {53136, title = {Aggressiveness, Territoriality, and Sexual Behavior in Field Crickets (Orthoptera: Gryllidae)}, journal = {Behaviour}, volume = {17}, year = {1961}, month = {Jan-01-1961}, pages = {130 - 223}, abstract = {

Most contacts between adult male field crickets involve aggressive behavior by one or both individuals and terminate with the obvious retreat of one individual. Aggressive behavior consists of one or more of several actions: in mild encounters there is either rearing of the forebody, lashing of the antennae, and shaking of the body, or else rearing of the hind body, kicking with the hind legs, and shaking of the body; in intense encounters, antennal lashing and rearing of the forebody are followed by spreading the mandibles, stridulating distinctively, rushing forward, sparring with the forelegs, butting with the head, and grappling, wrestling, or biting with the mandibles. A male is often flipped back or thrown sideways, but mutilation as a result of fighting is rare, and only in the most intense encounters is the winner determined by what seems to be superior strength or fighting ability. The outcomes of most encounters are determined by the relative tenacity of the two males, and the intensity of aggression exhibited is correlated with the length of the fight, continued aggressive activity developing into increasingly severe combat until one male finally retreats. Groups of adult male field crickets caged in small arenas form essentially linear dominance hierarchies which are stable for short periods of time and which can be described in terms of several characteristics: (1) each male dominates all or nearly all of his encounters with males below him in the hierarchy, (2) the total number of encounters by individual males decreases gradually toward the bottom of the hierarchy, (3) the intensity of aggression exhibited during encounters decreases more or less gradually toward the bottom of the hierarchy and the numbers of no-decision and no-aggression encounters and actively homosexual contacts increase, and (4) encounters between males which rank next to each other are usually more intense than encounters between males which are far apart in the hierarchy.

}, issn = {0005-7959}, doi = {10.1163/156853961X00042}, url = {http://booksandjournals.brillonline.com/content/10.1163/156853961x00042} } @article {52753, title = {The {\textquoteleft}hot male{\textquoteright} hypothesis: do female crickets prefer males with increased body temperature in mate choice scenarios?}, journal = {Animal Behaviour}, volume = {138}, year = {2018}, month = {Jan-04-2018}, pages = {75 - 84}, abstract = {

Insects have been extensively used as model systems to study mating preferences based on variation in acoustic signals. In many species, females perform phonotaxis towards attractive, long-range acoustic signals produced by males, whereas the final mating decision is based on an assessment of additional, multimodal, close-range cues. The production of acoustic signals is costly, because invested energy is inefficiently converted into acoustic power. Here, we investigated whether heat released as a by-product during song generation might serve as an additional cue during mate choice decisions. Males that broadcast highly energetic calling songs increased their thoracic temperature considerably above ambient temperatures. The use of this additional cue would turn the acoustic signal into an inherently bimodal one, indirectly indicating the quality of the sender. To test this hot male hypothesis, we performed trackball and Y-maze experiments with Anurogryllus muticus. For comparison, additional trackball experiments were conducted with Gryllus bimaculatus females. In all paradigms, females of both species showed no evidence of a preference for hot males and, therefore, we conclude that increases in thoracic temperature do not seem to play a role as a multimodal component in mate choice decisions in A. muticus.

}, keywords = {acoustic signals, Anurogryllus muticus, energy, Female choice, infrared thermography, male quality, multimodal communication, sexual selection, thermal cues, thoracic temperature increase}, issn = {00033472}, doi = {10.1016/j.anbehav.2018.02.007}, url = {http://linkinghub.elsevier.com/retrieve/pii/S0003347218300575}, author = {Erregger, Bettina and Hennig, R. Matthias} } @article {43232, title = {The Seasonal Succession of Orthopteran Stridulation near Raleigh, North Carolina}, journal = {Journal of the Elisha Mitchell Scientific Society}, volume = {67}, year = {1951}, month = {June 1951}, pages = {87-95}, chapter = {87}, author = {B. B. Fulton} } @article {17200, title = {The stridulations of some crickets in the Dominican Republic}, journal = {Journal of the Washington Academy of Sciences}, volume = {47}, year = {1957}, pages = {150-152}, chapter = {150}, url = {http://biostor.org/reference/134282}, author = {Allard, H. A.} }