Food-sharing vampire bats are more nepotistic under conditions of perceived risk

Gerald G. Carter, Gerald S. Wilkinson and Rachel A. Page

Behavioral Ecology, 2017, vol. 28, issue 2, 565-569

Abstract: Lay Summary When rescue behavior is more risky, rescuers should be more biased towards closer kin. We tested this idea using food-sharing vampire bats. We created a risky “rescue condition” where donors had to descend from the safety of dark roosting locations and feed a bat trapped in an illuminated cage on the floor. As expected, the increased risk for donors led to smaller and less frequent food donations that were also more kin-biased. Risk exaggerated nepotism.

Keywords: cooperation; food sharing; kin selection; nepotism; rescue behavior; vampire bats. (search for similar items in EconPapers)
Date: 2017
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