... stressors are unknown. We determined if developmental ALAN exposure (1) affects development, (2) affects adult phenotype, including heat and desiccation tolerance, and (3) affects and/or interacts with life-history strategy. We used the variable field cricket ( Gryllus lineaticeps ) because its geographic...

...Nwuneke Okereke Ifere; Hisashi Shidara; Nodoka Sato; Hiroto Ogawa ABSTRACT Animals perceive their surroundings using various modalities of sensory inputs to guide their locomotion. Nocturnal insects such as crickets use mechanosensory inputs mediated by their antennae to orient in darkness. Spatial...

...-history, physiological and behavioral traits. We used the variable field cricket, Gryllus lineaticeps , which exhibits a wing dimorphism that mediates two distinct life-history strategies during early adulthood. Long-winged individuals invest in flight musculature and are typically flight capable, whereas...

... the escape response affect the neuronal circuit governing that behavior. However, how the spatio-temporal relationships between these two stimuli effect a behavioral change remains unknown. We studied this question, using crickets, which respond to a short air-puff by oriented walking activity mediated...

...Kelly M. Seagraves; Berthold Hedwig The cricket's auditory system is a highly directional pressure difference receiver whose function is hypothesised to depend on phase relationships between the sound waves propagating through the auditory trachea that connects the left and right hearing organs. We...

... from asymmetrical traits. Here, we investigated these mechanisms in behavioural and neurophysiological experiments in the Mediterranean field cricket, Gryllus bimaculatus . A downward frequency modulation at the end of each syllable in the calling song has been suggested to indicate morphological...

...Tetsuro Funato; Masahito Nara; Daisuke Kurabayashi; Masatoshi Ashikaga; Hitoshi Aonuma SUMMARY Aggressive behaviour within pairs of male crickets leads to the establishment of a dominance hierarchy. Defeated males avoid their victorious adversaries for several hours before regaining aggressiveness...

...Arne K. D. Schmidt; Klaus Riede; Heiner Römer SUMMARY Because of call frequency overlap and masking interference, the airborne sound channel represents a limited resource for communication in a species-rich cricket community like the tropical rainforest. Here we studied the frequency tuning...

...Alice G. Witney; Berthold Hedwig SUMMARY Female crickets, Gryllus bimaculatus , are attracted by the male calling song and approach singing males; a behaviour known as phonotaxis. Even tethered females walking on a trackball steer towards a computer-generated male song presented from their left...

... control, the specialized femur–tibia (knee) joints of cricket ( Acheta domesticus ) hindlegs were studied during ballistic kicking, jumping and swimming and in non-ballistic walking. In this joint the tendons of the antagonistic flexor and the extensor muscles attach at different distances from the pivot...

... adaptations of a parasitic fly, Ormia ochracea , that resemble those of its cricket hosts. Ormia females home in on the male cricket's songs and deposit larvae, which burrow into the cricket, feed and emerge to pupate. Because male crickets call at night, gravid female Ormia in search of hosts are subject...

...T. Baden; B. Hedwig SUMMARY Front leg movements in the cricket ( Gryllus bimaculatus ) were measured during phonotactic steering on a trackball together with electromyogram recordings of the tibial extensor and flexor muscles. Up–down leg movements clearly indicated the step cycle and were...

...Gwen A. Jacobs; John P. Miller; Zane Aldworth SUMMARY Crickets and many other orthopteran insects face the challenge of gathering sensory information from the environment from a set of multi-modal sensory organs and transforming these stimuli into patterns of neural activity that can encode...

...T. Steinmann; J. Casas; G. Krijnen; O. Dangles SUMMARY The aim of this work is to characterize the boundary layer over small appendages in insects in longitudinal and transverse oscillatory flows. The problem of immediate interest is the early warning system in crickets perceiving flying predators...

...Hiroshi Nishino SUMMARY The cricket Gryllus bimaculatus displays a sudden rigid immobility(thanatosis) when voluntary leg movements are forcibly restrained. The tibial joints in all legs are stiffly immobilized for several minutes. The flexed-leg posture typical of thanatosis is maintained...

.... In ectotherms it has been suggested that standard metabolic rate(MR) is related to Darwinian fitness, since it reflects energy usage and expenditure. The metabolic rate of the cricket Hophlosphyrum griseus was determined at three ambient temperatures. Repeatability of MR was estimated by product–moment...

...H. C. Bennet-Clark SUMMARY The anatomy and mechanics of the fore-wings of the Australian cricket Teleogryllus oceanicus were examined to study how resonances of the wings were excited, to model the interactions between the two wings during sound production, to account for the frequency changes...

...Tetsutaro Hiraguchi; Tsuneo Yamaguchi; Masakazu Takahata SUMMARY Mechanoreceptors involved in the escape jumping evoked by hindwing stimulation have been investigated in the field cricket Gryllus bimaculatus . By partial ablation of the hindwing, we found that a mechanosensory system relevant...

...Yukihisa Matsumoto; Makoto Mizunami SUMMARY Temporal determinants of olfactory long-term memory retention in the cricket Gryllus bimaculatus were studied. Elementary appetitive and aversive conditioning procedures, as well as a differential conditioning procedure, were applied. In appetitive...

...A. S. M. Saifullah; Kenji Tomioka SUMMARY The bilaterally paired optic lobe circadian pacemakers of the cricket Gryllus bimaculatus mutually exchange photic and circadian information to keep their activity synchronized. The information is mediated by a neural pathway, consisting of the so-called...