02818nas a2200241   4500008004100000022001300041245011800054210006900172260001600241300001200257490000800269520186900277653001602146653001902162653002702181653003502208653001802243653001902261653001702280653001502297100003102312856023302343       2018                        eng d  a0003347200aPresence of a potential competitor and its individual identity modulate ultrasonic vocalizations in male hamsters0 aPresence of a potential competitor and its individual identity m  cJan-11-2018  a11 - 270 v1453 a<p>Animal communication takes place in a complex environment that is constantly modulated by particular social conditions. The majority of examples of signalling behaviours modulated by social context involve the presence of an individual of a particular sex or one that simply represents general competition. However, the identity of the individuals and the social relationships among individuals could also significantly modulate acoustic behaviour. In this study, I examined whether the presence of another male competitor modulates the post-interaction vocal response of a male subject to an oestrous female stimulus in golden hamsters, Mesocricetus auratus. I found that the presence of a potential competitor during an interaction with a female across a wire-mesh barrier significantly decreased the duration, tempo and energy of &lsquo;post-female calls&rsquo; over time (experiment 1). Moreover, the call duration and energy of one-note simple calls changed over time depending on the identity of the stimulus male. Males that experienced social conflict and lost a fight maintained call duration and increased the energy of their calls over time, but only if the social interaction with the female was in the presence of another familiar neutral male and not in the presence of a familiar winner male (experiment 2). When the winner male stimulus was present, the duration and energy of the calls produced by the loser decreased with time. Individual recognition between familiar conspecifics with different shared experiences likely modulated the motivational state of the male subject and his vocal response after a social interaction with the female. This study provides new evidence that social complexity (competition and individual recognition) can induce dynamic changes of spectrotemporal features of hamster sexual ultrasonic vocalizations.</p>
10afamiliarity10agolden hamster10aindividual recognition10asexual ultrasonic vocalization10asocial defeat10aSyrian hamster10aUSV duration10aUSV energy1 aFernández-Vargas, Marcela  uhttps://linkinghub.elsevier.com/retrieve/pii/S0003347218302689https://api.elsevier.com/content/article/PII:S0003347218302689?httpAccept=text/xmlhttps://api.elsevier.com/content/article/PII:S0003347218302689?httpAccept=text/plain02359nas a2200253   4500008004100000022001300041245010800054210007100162260001600233300001400249490000800263520137300271653002701644653002301671653002601694653002901720653001301749653002101762100001901783700002601802700002101828700002301849856023301872       2018                        eng d  a0003347200aMultimodal mother–offspring recognition: the relative importance of sensory cues in a colonial mammal0 aMultimodal mother–offspring recognition the relative importance   cJan-12-2018  a135 - 1420 v1463 a<p>Animals often employ multiple sensory modalities for communication and recognition; however, the combination of sensory cues used by individuals in given contexts will vary. Although mother&ndash;offspring recognition has been widely investigated and is known to be a multimodal process in gregarious mammal species, there is a dearth of information about the interactions between various sensory cues. Here we show how acoustic, olfactory and visual cues are used in a synergistic way in Australian sea lion, Neophoca cinerea, mother&ndash;offspring recognition. We interpret the results using a cost&ndash;benefit perspective to disentangle the evolutionary pressures on each component of this communication system. Although olfactory cues can convey individual identity information it was their presence, not their congruency, that prompted female sniffs. We found that calls needed to be from the female&#39;s own pup for the identification process to be successful, with the information encoded in acoustic cues overriding that of olfactory cues. Despite each sensory cue accurately conveying identity information when presented in isolation, in a multimodal setting their importance, function or role may change and seems to be driven by the costs and benefits of obtaining information resulting from the constraints imposed by the active space of cues.</p>
10aindividual recognition10amaternal behaviour10amother-offspring cues10amultimodal communication10apinniped10asensory channels1 aWierucka, Kaja1 aPitcher, Benjamin, J.1 aHarcourt, Robert1 aCharrier, Isabelle  uhttps://linkinghub.elsevier.com/retrieve/pii/S0003347218303208https://api.elsevier.com/content/article/PII:S0003347218303208?httpAccept=text/xmlhttps://api.elsevier.com/content/article/PII:S0003347218303208?httpAccept=text/plain