A limit to sustained performance constrains trill length in birdsong [PDF]
iScience, 2023 Summary: In birds, song performance determines the outcome of contests over crucial resources. We hypothesized that 1) sustained performance is limited within song, resulting in a performance decline towards the end and 2) the impact of song length is ...
Javier Sierro +2 more
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Frontiers in Bird ScienceDiversity within species can be masked by minor differences in external appearance but revealed by group differences in vocal characteristics such as flight calls of Fringillid finches. These flight calls vary among infraspecific groups within a species.
William M. Kirsch +5 more
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Seasonal variation in the ultrasonic vocal activity of Humboldt's flying squirrel (Glaucomys oregonensis) [PDF]
Ecology and EvolutionMost mammals rely on vocal communication to increase survival and reproductive success. While the functions of audible vocalizations have been well‐studied across mammal species, ultrasonic vocalizations in small mammals outside of bats are less ...
Travis A. Farwell, Barbara Clucas
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Галактика медиа: журнал медиа исследований, 2022 The article considers the social-political power of scientists and engineers in science fiction illustrated by F. Carsak’s “Flight of the Earth” and Z. Istvan’s “The Transhumanist Wager”.
Svetlana V. Shibarshina
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Horse-directed vocalizations: Clicks, trills, and /ho:/
Language and CommunicationBeatrice Barbara Szczepek Reed
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Female signalling to male song in the domestic canary, Serinus canaria [PDF]
Royal Society Open Science, 2015 Most studies on sexual selection focus on male characteristics such as male song in songbirds. Yet female vocalizations in songbirds are growing in interest among behavioural and evolutionary biologists because these vocalizations can reveal the female's
Mathieu Amy +3 more
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Calling and courtship songs of the rare, robust ground cricket, Allonemobius walkeri [PDF]
Journal of Orthoptera Research, 2021 In the original description of Allonemobius walkeri Howard & Furth, 1986, the authors describe the species’ calling songs in a table that included trill length, length of the interval between trills, pulse rate, and carrier frequency for four ...
Wilbur L. Hershberger
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Oecanthus mhatreae sp. nov. (Gryllidae: Oecanthinae): A new species of tree cricket from Mexico, with an irregular song pattern and unique chirp-like trill configuration [PDF]
Journal of Orthoptera Research, 2019 A new species of Oecanthus is described from Mexico. Oecanthus mhatreae sp. nov. occurs in central Mexico in the understory of tropical deciduous forest. Oecanthus mhatreae sp. nov.
Nancy Collins +2 more
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A new Amazonian species of Allobates Zimmermann & Zimmermann, 1988 (Aromobatidae) with a trilled advertisement call [PDF]
PeerJ, 2022 Background Currently, 58 species are assigned to the genus Allobates, with 70% of its diversity described just in the last two decades, with many additional species likely unnamed.
Leandro A. Silva +3 more
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Social Context Predicts Vocalization Use in the Courtship Behaviors of Weddell Seals (Leptonychotes weddellii): A Case Study [PDF]
Animal Behavior and Cognition, 2016 Despite previous research, no study has convincingly demonstrated what role if any vocalizations might play in the reproductive behavior of Weddell seals (Leptonychotes weddellii). To better understand that role, we created an artificial territory for an
Ludivine R. Russell +2 more
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