Alarm calling in yellow-bellied marmots: II. The importance of direct fitness

@article{Blumstein1997AlarmCI,
  title={Alarm calling in yellow-bellied marmots: II. The importance of direct fitness},
  author={Daniel T. Blumstein and Jeff Steinmetz and Kenneth B. Armitage and Joseph Christopher Daniel},
  journal={Animal Behaviour},
  year={1997},
  volume={53},
  pages={173-184}
}
Alarm calling in sciurid rodents is often explained by inclusive fitness benefits that callers accrue. Inclusive fitness arguments imply that indirect fitness plays an important role in the evolution and maintenance of alarm calling. A more parsimonious hypothesis is that animals alarm call to increase their direct fitness by warning their offspring. Group-living animals are related to each other social group member by a coefficient of relatedness, r, that theoretically ranges from 0–1.0. The… CONTINUE READING

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