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Male Pagurus minutus hermit crabs use multiple types of information in decisions to give up male-male contests

Scientific reports, 2023-11, Vol.13 (1), p.20654-20654, Article 20654 [Peer Reviewed Journal]

2023. The Author(s). ;The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 2045-2322 ;EISSN: 2045-2322 ;DOI: 10.1038/s41598-023-47947-3 ;PMID: 38001142

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  • Title:
    Male Pagurus minutus hermit crabs use multiple types of information in decisions to give up male-male contests
  • Author: Yasuda, Chiaki I ; Koga, Tsunenori
  • Subjects: Aggression - psychology ; Animals ; Anomura ; Cognition ; Cognitive ability ; Costs ; Decision making ; Dominance hierarchies ; Female ; Females ; Information sources ; Male ; Males ; Pagurus minutus ; Seawater ; Social Dominance ; Success
  • Is Part Of: Scientific reports, 2023-11, Vol.13 (1), p.20654-20654, Article 20654
  • Description: Organisms use information to make adaptive decisions in various contexts, including aggression. Potentially weaker, but better-informed, contestants should give up earlier to reduce fighting costs by using information related to their own lower success such as their size relative to their opponent and past contest outcomes to make this choice. Here, we examined whether intruders of the hermit crab Pagurus minutus could use information about their (1) smaller size, (2) past contest defeats, (3) opponent's past wins, or (4) relationship in the dominance hierarchy to their opponent when making a decision to give up during male-male contests for a female. In all trials, we randomly matched a smaller intruder with a larger opponent that was guarding a female. Our analyses suggest that P. minutus intruders can use all four types of information to decide whether to give up a contest without escalation or decrease its duration after escalation; it is the first species of Pagurus reported to do so, and the second reported to be able to distinguish familiar opponents from others in the context of male-male contests. These findings demonstrate the importance of cognitive abilities in minimizing costs when competing for vital resources.
  • Publisher: England: Nature Publishing Group
  • Language: English
  • Identifier: ISSN: 2045-2322
    EISSN: 2045-2322
    DOI: 10.1038/s41598-023-47947-3
    PMID: 38001142
  • Source: MEDLINE
    PubMed Central
    Directory of Open Access Journals
    ProQuest Central
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