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Related Experiment Video

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Peering into the Dynamics of Social Interactions: Measuring Play Fighting in Rats
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Intergroup aggression in meerkats.

Mark Dyble1,2,3,4, Thomas M Houslay1,4, Marta B Manser4,5

  • 1Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK.

Proceedings. Biological Sciences
|December 19, 2019
PubMed
Summary

Meerkat group conflicts are aggressive and can be lethal, impacting territory. Larger groups with pups tend to win, influencing survival and extinction risks.

Keywords:
animal groupsconflictfitnesssocial behaviourviolence

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Area of Science:

  • Animal Behavior
  • Evolutionary Biology
  • Ecology

Background:

  • Group-living mammals exhibit intergroup conflict with significant fitness costs.
  • Such conflicts can lead to injury, death, and territorial loss.

Purpose of the Study:

  • To investigate intergroup conflict dynamics in meerkats (Suricata suricatta).
  • To determine factors influencing contest outcomes and their ecological consequences.

Main Methods:

  • Observational study of meerkat group interactions.
  • Analysis of contest outcomes, group size, pup presence, territory shifts, and relatedness.

Main Results:

  • Meerkat group interactions are frequently aggressive, sometimes resulting in lethal violence.
  • Losing groups retreated, while winning groups advanced their territory.
  • Larger groups and those with pups were more likely to win contests.

Conclusions:

  • Intergroup competition is a significant selective pressure in meerkats.
  • Conflict success reinforces large groups and endangers smaller ones.
  • Meerkats offer insights into the evolution of intergroup hostility, comparable to human warfare.