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Maternal effects on the development of vocal communication in wild chimpanzees

Bründl, AC, Girard-Buttoz, C, Bortolato, T, Samuni, L, Grampp, M, Löhrich, T, Tkaczynski, P, Wittig, RM and Crockford, C (2022) Maternal effects on the development of vocal communication in wild chimpanzees. iScience, 25 (10). p. 105152. ISSN 2589-0042

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Early-life experiences, such as maternal care received, influence adult social integration and survival. We examine what changes to social behavior through ontogeny lead to these lifelong effects, particularly whether early-life maternal environment impacts the development of social communication. Chimpanzees experience prolonged social communication development. Focusing on a central communicative trait, the "pant-hoot" contact call used to solicit social engagement, we collected cross-sectional data on wild chimpanzees (52 immatures and 36 mothers). We assessed early-life socioecological impacts on pant-hoot rates across development, specifically: mothers' gregariousness, age, pant-hoot rates and dominance rank, maternal loss, and food availability, controlling for current maternal effects. We found that early-life maternal gregariousness correlated positively with offspring pant-hoot rates, while maternal loss led to reduced pant-hoot rates across development. Males had steeper developmental trajectories in pant-hoot rates than females. We demonstrate the impact of maternal effects on developmental trajectories of a rarely investigated social trait, vocal production.

Item Type: Article
Uncontrolled Keywords: Biological sciences; Ethology; Zoology
Subjects: Q Science > QH Natural history > QH301 Biology
Q Science > QL Zoology
S Agriculture > SF Animal culture
Divisions: Biological & Environmental Sciences (from Sep 19)
Publisher: Cell Press
SWORD Depositor: A Symplectic
Date Deposited: 25 Oct 2022 14:37
Last Modified: 25 Oct 2022 14:45
DOI or ID number: 10.1016/j.isci.2022.105152
URI: https://researchonline.ljmu.ac.uk/id/eprint/17935
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