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https://hdl.handle.net/1959.11/30473
Title: | Experimental evidence for delayed contingent cooperation among wild dwarf mongooses | Contributor(s): | Kern, Julie M (author) ; Radford, Andrew N (author) | Publication Date: | 2018-06-12 | Early Online Version: | 2018-05-29 | DOI: | 10.1073/pnas.1801000115 | Handle Link: | https://hdl.handle.net/1959.11/30473 | Abstract: | Many animals participate in biological markets, with strong evidence existing for immediate cooperative trades. In particular, grooming is often exchanged for itself or other commodities, such as coalitionary support or access to food and mates. More contentious is the possibility that nonhuman animals can rely on memories of recent events, providing contingent cooperation even when there is a temporal delay between two cooperative acts. Here we provide experimental evidence of delayed cross-commodity grooming exchange in wild dwarf mongooses (Helogale parvula). First, we use natural observations and social-network analyses to demonstrate a positive link between grooming and sentinel behavior (acting as a raised guard). Group members who contributed more to sentinel behavior received more grooming and had a better social-network position. We then used a field-based playback experiment to test a causal link between contributions to sentinel behavior and grooming received later in the day. During 3-h trial sessions, the perceived sentinel contributions of a focal individual were either up-regulated (playback of its surveillance calls, which are given naturally during sentinel bouts) or unmanipulated (playback of its foraging close calls as a control). On returning to the sleeping refuge at the end of the day, focal individuals received more grooming following surveillance-call playback than control-call playback and more grooming than a matched individual whose sentinel contributions were not up-regulated. We believe our study therefore provides experimental evidence of delayed contingent cooperation in a wild nonprimate species. | Publication Type: | Journal Article | Source of Publication: | Proceedings of the National Academy of Sciences, 115(24), p. 6255-6260 | Publisher: | National Academy of Sciences | Place of Publication: | United States of America | ISSN: | 1091-6490 0027-8424 |
Fields of Research (FoR) 2008: | 060801 Animal Behaviour 060201 Behavioural Ecology |
Fields of Research (FoR) 2020: | 310901 Animal behaviour 310301 Behavioural ecology |
Socio-Economic Objective (SEO) 2008: | 970106 Expanding Knowledge in the Biological Sciences | Socio-Economic Objective (SEO) 2020: | 280102 Expanding knowledge in the biological sciences | Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
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Appears in Collections: | Journal Article School of Environmental and Rural Science |
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