1. Ecology
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Social Behaviour: Finding the right size for a group

  1. Marlee Tucker  Is a corresponding author
  1. Department of Environmental Science, Radboud University, Netherlands
  2. Institute for Wetland and Water Research, Radboud University, Netherlands
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Cite this article as: eLife 2020;9:e63871 doi: 10.7554/eLife.63871
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What is the optimal size for a group of vulturine guineafowl?

Vulturine guineafowl are social birds that live in groups. Papageorgiou and Farine studied how the size of the home range of these birds, and the number of chicks in each group, varied with the number of adults in a group. They found, as illustrated schematically here, that groups containing an intermediate number of adults (between 33 and 37 birds in this case) have larger home ranges and more chicks than smaller and larger groups, which suggests that intermediate-sized groups benefit from increased fitness.

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