The influence of experience on contest assessment strategies

Scientific Reports
Irene CamerlinkGareth Arnott

Abstract

Animal contest behaviour has been widely studied, yet major knowledge gaps remain concerning the information-gathering and decision-making processes used during encounters. The mutual assessment strategy, where the individual assesses its own fighting ability (Resource Holding Potential, RHP) and compares it to that of its opponent, is least understood. We hypothesise that individuals need experience of agonistic encounters to become proficient at mutual assessment. Pigs (Sus scrofa, n = 316) were contested twice. In between contests, animals did or did not (control) receive intense fighting experience. A substantial proportion of the contests reached an outcome with a clear winner without fighting. Non-escalation was highest in RHP asymmetric dyads of the second contest, irrespective of experience. In contest 1 (no experience) and in contest 2 for the experienced animals, costs increased with loser RHP and where unaffected by winner RHP, suggesting a self-assessment strategy. In contest 2 control dyads, which only had experience of one prior contest, a negative relation between winner RHP and costs suggested mutual assessment during the pre-escalation phase but not during escalated aggression. This reveals that a brief and rel...Continue Reading

References

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Citations

Mar 15, 2019·Animal : an International Journal of Animal Bioscience·M VerdonJ-L Rault
Nov 2, 2018·Animals : an Open Access Journal From MDPI·Irene CamerlinkSimon P Turner
Jan 26, 2020·Scientific Reports·Jennifer E WellerGareth Arnott
Aug 16, 2018·Scientific Reports·Irene CamerlinkGareth Arnott
Jun 20, 2019·Animals : an Open Access Journal From MDPI·Kathrin BüttnerJoachim Krieter
Jun 21, 2019·Royal Society Open Science·Irene CamerlinkGareth Arnott
Sep 25, 2020·Scientific Reports·Simon P TurnerSimone Foister
Dec 6, 2018·Scientific Reports·Irene CamerlinkSimon P Turner
Nov 19, 2020·Proceedings. Biological Sciences·Andrew CrumpGareth Arnott

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