ArticleProceedings. Biological sciences2019
Tool use and social homophily among male bottlenose dolphins.
Article in Proceedings. Biological sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Spatio-temporal patterns of juvenile common ravens integrating into a free-flying non-breeder flock.iScience · 2026Article
- A new addition to the toolbox: stone tool use in blonde capuchin monkeys (Sapajus flavius).Primates; journal of primatology · 2024Article
- Training the Concept of Innovate in Dolphins (Animals : an open access journal from MDPI · 2024Article
- Strategic intergroup alliances increase access to a contested resource in male bottlenose dolphins.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Association patterns and community structure among female bottlenose dolphins: environmental, genetic and cultural factors.Mammalian biology = Zeitschrift fur Saugetierkunde · 2022Article
- Cooperative partner choice in multi-level male dolphin alliances.Scientific reports · 2021Article
- Social influence and interaction bias can drive emergent behavioural specialization and modular social networks across systems.Journal of the Royal Society, Interface · 2020Article
- Multi-network-based diffusion analysis reveals vertical cultural transmission of sponge tool use within dolphin matrilines.Biology letters · 2019Article
- The ontogeny of social networks in wild great tits (Behavioral ecology : official journal of the International Society for Behavioral EcologyArticle
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Authors and funding
9 authors.
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Abstract
Homophilous behaviour plays a central role in the formation of human friendships. Individuals form social ties with others that show similar phenotypic traits, independently of relatedness. Evidence of such homophily can be found in bottlenose dolphins ( Tursiops aduncus) in Shark Bay, Western Australia, where females that use marine sponges as foraging tools often associate with other females that use sponges. 'Sponging' is a socially learned, time-consuming behaviour, transmitted from mother to calf. Previous research illustrated a strong female bias in adopting this technique. The lower propensity for males to engage in sponging may be due to its incompatibility with adult male-specific behaviours, particularly the formation of multi-level alliances. However, the link between sponging and male behaviour has never been formally tested. Here, we show that male spongers associated significantly more often with other male spongers irrespective of their level of relatedness. Male spongers spent significantly more time foraging, and less time resting and travelling, than did male non-spongers. Interestingly, we found no difference in time spent socializing. Our study provides novel insights into the relationship between tool use and activity budgets of male dolphins, and indicates social homophily in the second-order alliance composition of tool-using bottlenose dolphins.
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