Spider dung beetles: Coordinated cooperative transport without a predefined destination

Claudia Tocco, Marcus Byrne, Yakir Gagnon, Elin Dirlik, Marie Dacke

Research output: Contribution to journalArticlepeer-review

Abstract

Cooperative transport allows for the transportation of items too large for the capacity of a single individual. Beyond humans, it is regularly employed by ants and social spiders where two or more individuals, with more or less coordinated movements, transport food to a known destination. In contrast to this, pairs of male and female dung beetles successfully transport brood balls to a location unknown to either party at the start of their common journey. We found that, when forced to overcome a series of obstacles in their path, transport efficiency of pairs of beetles was higher than of solo males. To climb tall obstacles with their common ball of dung, the female assisted the leading male in lifting the ball by steadying and pushing it upwards in a 'headstand' position during the climb initiation. Finally, we show that pairs were faster than single beetles in climbing obstacles of different heights. Our results suggest that pairs of Sisyphus beetles cooperate in the transportation of brood balls with coordinated movements, where the male steers and the female primarily assists in lifting the ball. Taken together, this is to our knowledge, the first quantitative study of cooperative food transport without a known goal to aim for.

Original languageEnglish
Article number20232621
Number of pages10
JournalProceedings of the Royal Society B: Biological Sciences
Volume291
Issue number2015
DOIs
Publication statusPublished - 2024 Jan

Subject classification (UKÄ)

  • Zoology
  • Behavioral Sciences Biology

Free keywords

  • brood ball
  • insects climb in pairs
  • mate choice
  • object transportation
  • orientation precision of pairs
  • Sisyphus

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