Citation
Selfish sentinels in cooperative mammals
TL;DR
Sentinels are typically satiated individuals, not sacrificing foraging
This research revealed that meerkat sentinel behavior - seemingly altruistic vigilance for the group - has complex selfish incentives. Sentinels are typically satiated individuals (not sacrificing foraging), occupy safer elevated positions with better escape routes, and are often close relatives of breeders. The behavior is maintained by self-interest and kin selection, not pure altruism.
The findings inform organizational sentinel design: effective monitoring roles should be designed so that being a sentinel is beneficial, not costly. Alignment of individual and group interests creates sustainable vigilance systems.
Key Findings from Clutton-Brock et al. (1999)
- Sentinels are typically satiated individuals, not sacrificing foraging
- Elevated sentinel positions are safer than foraging positions
- Sentinel duty is opportunistic and self-serving
- Kin selection reinforces alarm honesty