AI Article Synopsis
- * The study focused on chimpanzees' "pant-hoot" calls and how maternal factors like gregariousness, age, and loss influence these vocalizations across development.
- * Results show that offspring of more social mothers had higher pant-hoot rates, while maternal loss negatively impacted these rates, with males showing more pronounced development in vocalizations than females.
Article Abstract
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.
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Source |
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9550609 | PMC |
| http://dx.doi.org/10.1016/j.isci.2022.105152 | DOI Listing |
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