Daurian pika (Ochotona dauurica) alarm calls: individual acoustic variation in a lagomorph with audible through ultrasonic vocalizations
| العنوان: | Daurian pika (Ochotona dauurica) alarm calls: individual acoustic variation in a lagomorph with audible through ultrasonic vocalizations |
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| المؤلفون: | Elena V. Volodina, Kseniya D. Karaseva, Roland Frey, Vadim E. Kirilyuk, Ilya A. Volodin |
| المصدر: | Journal of Mammalogy. 102:947-959 |
| بيانات النشر: | Oxford University Press (OUP), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 0106 biological sciences, Ecology, biology, Zoology, Daurian pika, biology.organism_classification, Alarm signal, 010603 evolutionary biology, 01 natural sciences, Vocal production, 03 medical and health sciences, 0302 clinical medicine, Variation (linguistics), Genetics, Animal Science and Zoology, Pika, 030217 neurology & neurosurgery, Ecology, Evolution, Behavior and Systematics, Nature and Landscape Conservation, Call duration |
| الوصف: | Colonial lagomorphs warn conspecifics of potential danger with alarm calls encoding information about attributes of presumptive predators as well as the caller. In this study, we show that alarm calls of Daurian pikas, Ochotona dauurica (Pallas, 1776), encode information about caller identity. We recorded the alarm calls produced toward a surrogate predator (researcher), slowly moving (0.5–1 km/h) between densely distributed colonies. The alarm calls of most (32 of the 35) callers started in the ultrasonic range at 22.41 kHz on average and rapidly decreased to 3.88 kHz on average at call end. Call duration was very short (0.057 s on average). The accuracy of classifying alarm calls to correct callers with discriminant function analysis (DFA) was 93.71% for the manually measured set of 12 acoustic variables and 95.43% for the semiautomatically measured set of 12 acoustic variables; in both cases exceeding the level of chance (17.28% or 17.33%, respectively). Nonlinear vocal phenomena (biphonations) only were detected in one individual. We discuss the relationship between vocal traits, individuality, vocal production mechanisms, and functions, of pika alarm calls. We propose a potential divergence of alarm calls in Asian pikas to high-frequency whistles (> 20 kHz in Daurian pikas) and in American pikas to low-frequency emissions (0.4–1.3 kHz in Ochotona princeps) during the evolutionary radiation of pikas at the center of the origin of lagomorphs in East Asia and their subsequent geographic dispersal. |
| تدمد: | 1545-1542 0022-2372 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::f66c8c4820420507825284fd9a823a80 https://doi.org/10.1093/jmammal/gyab048 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........f66c8c4820420507825284fd9a823a80 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15451542 00222372 |
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