02256nas a2200169 4500008004100000245021200041210006900253520154500322653001701867653003401884653001201918653003001930100002001960700002601980700002502006856005502031 2020 eng d00aAre terrestrial isopods able to use stridulation and vibrational communication as forms of intra and interspecific signaling and defense strategies as insects do? A preliminary study in Armadillo officinalis0 aAre terrestrial isopods able to use stridulation and vibrational3 a

The capability of producing sounds and vibrations is well known in insects and is thought to be a form of intra- and interspecific communication. Sounds and vibrations are used and modulated for several aims such as interacting with conspecifics, getting information from the environment, and defending against predators. This phenomenon is less known but also present in other arthropods, including a few roller-type terrestrial isopods. In this study, we used a Y-shape test apparatus to investigate the behavior of adult individuals of Armadillo officinalis Duméril, 1816 (Crustacea: Isopoda: Oniscidea) when exposed to two particular vibrational stimuli, namely species-specific stridulations and non-specific substrate-borne vibrations. Our results showed that adults of A. officinalis significantly react to the presence of both types of vibrational stimuli, by moving away from the vibrational source as if they experienced these vibrations as a sign of danger or disturbance. A. officinalis can produce stridulations only when it rolls into a ball during the so-called conglobation, a possible defense mechanism against predators. Stridulation might thus be a secondary form of defense used during conglobation to deter a predator following contact with it and might be experienced as an alert by conspecifics nearby. The high sensitivity to non-specific substrate-borne vibrations might provide A. officinalis with the possibility to anticipate dangers and adverse conditions, giving it a better chance of survival.

10abiotremology10aCrustacea: Isopoda: Oniscidea10ainsects10avibrational communication1 aCividini, Sofia1 aSfenthourakis, Spyros1 aMontesanto, Giuseppe uhttp://link.springer.com/10.1007/s00114-019-1656-302382nas a2200253 4500008004100000022001400041245007900055210006900134260001600203490000700219520162600226653001701852653001801869653002301887653001501910653002101925653001601946653002001962653002801982100002102010700002002031700002202051856005502073 2018 eng d a0340-544300aTemperature alters multimodal signaling and mating success in an ectotherm0 aTemperature alters multimodal signaling and mating success in an cJan-12-20180 v723 a

Temperature affects ectotherms in a variety of ways. These effects can be especially complex in sexual behaviors, as different sexes may be affected differently by temperature. We examined this in the jumping spider, Habronattus clypeatus. In this species, males court females using visual and vibratory signals. We tested whether key intersexual behaviors would change with temperature in similar, predictable ways across males and females. We first measured temperature and apparent activity of individuals across the day. We found that H. clypeatus are active across a wide range of temperatures (11–56 °C) and are most active at times of day when temperature ranges from 13 to 46 °C. Next, we performed mating experiments across behaviorally relevant temperatures. Females were more likely to allow males to progress to later stages of courtship and had higher mating rates at higher temperatures. Male visual and vibratory courtship behaviors generally became faster, higher-pitched, and lower in amplitude at higher temperatures. This relationship between temperature and signal aspects attained a roughly curvilinear shape, with an asymptote around 40 °C. Intriguingly, mating rates in the lab were highest at temperatures potentially above those during peak spider activity in the field. Our results suggest that temperature’s effects on behavior are complex and can affect males and females differently. This work emphasizes that understanding temperature effects on mating is critical to understanding sexual selection patterns particularly in species which use complex signals.

10abiotremology10acommunication10amultimodal signals10aSalticidae10asexual selection10aTemperature10aThermal ecology10aVibratory communication1 aBrandt, Erin, E.1 aKelley, Patrick1 aElias, Damian, O. uhttp://link.springer.com/10.1007/s00265-018-2620-502189nas a2200205 4500008004100000022001300041245009200054210006900146260001600215300001400231490000800245520156100253653001701814653001501831653001701846653002101863653001401884100001901898856006601917 2017 eng d a0003347200aBiotremology: Do physical constraints limit the propagation of vibrational information?0 aBiotremology Do physical constraints limit the propagation of vi cJan-08-2017 a165 - 1740 v1303 a

Vibrations are a ubiquitous source of information in the environment, and are utilized by a wide range of animals. In this review, I concentrate on the propagation of vibrations across and through substrates, which are materials and surfaces. During the propagation process, physical constraints act on vibrational signals and cues, including loss of energy, fi ltering or distortion of information. An understanding of these physical mechanisms is important for answering biological questions about communication and information gathering, particularly the reach of signals/cues and how information can be separated from background noise. In this review, I explore the interdisciplinary links central to the fi eld of biotremology to probe the extent to which physical laws limit information propagation. In what follows, I start with a primer in wave theory, before focusing on how the physical factors of wave type and substrate properties affect vibration propagation. I then turn to the interacting biological factors that in fl uence signal/cue propagation during animal-substrate coupling, discussing the numerous behavioural and morphological adaptations employed to mitigate physical constraints. Following this, I then move from limits to pos- sibilities, discussing how animals harness physical laws to provide useful information. Using examples from a wide range of animal systems and biological contexts, I highlight the array of evolutionary strategies to promote the propagation of information given inevitable physical constraints.

10abiomaterials10abiophysics10abiotremology10aphysical ecology10avibration1 aMortimer, Beth uhttp://linkinghub.elsevier.com/retrieve/pii/S000334721730190202284nas a2200265 4500008004100000022001300041245015400054210006900208260001600277300001200293490000800305520141800313653001701731653001701748653001701765653002901782653001401811653001601825653001501841100002401856700001901880700002001899700003301919856006601952 2016 eng d a0044523100aWing mechanics, vibrational and acoustic communication in a new bush-cricket species of the genus Copiphora (Orthoptera: Tettigoniidae) from Colombia0 aWing mechanics vibrational and acoustic communication in a new b cJan-07-2016 a55 - 650 v2633 a

Male bush-crickets produce acoustic signals by wing stridulation to call females. Several species also alternate vibratory signals with acoustic calls for intraspecific communication, a way to reduce risk of detection by eavesdropping predators. Both modes of communication have been documented mostly in neotropical species, for example in the genus Copiphora. In this article, we studied vibratory and acoustic signals and the biophysics of wing resonance in Copiphora vigorosa, a new species from the rainforest of Colombia. Different from other Copiphora species in which the acoustic signals have been properly documented as pure tones, C. vigorosa males produce a complex modulated broadband call peaking at ca. 30 kHz. Since males of this species do rarely sing, we also report that substratum vibrations have been adopted in this species as a persistent communication channel. Wing resonances and substratum vibrations were measured using a μ-scanning Laser Doppler Vibrometry. We found that the stridulatory areas of both wings exhibit a relatively broad-frequency response and the combined vibration outputs fits with the calling song spectrum breadth. The broadband calling song spectrum results from several wing resonances activated simultaneously during stridulation. Under laboratory conditions the calling song duty cycle is very low and males spend more time tremulating than singing.

10abioacoustics10abiotremology10abush-cricket10alaser Doppler vibrometer10aresonance10atremulation10aultrasound1 aSarria-S, Fabio, A.1 aBuxton, Kallum1 aJonsson, Thorin1 aMontealegre-Zapata, Fernando uhttp://linkinghub.elsevier.com/retrieve/pii/S0044523116300584