Reproductive investment under fluctuating predation risk: Microtine rodents and small mustelids

@article{Korpimaki2005ReproductiveIU,
  title={Reproductive investment under fluctuating predation risk: Microtine rodents and small mustelids},
  author={Erkki Korpimaki and Kai Norrdahl and Jari Valkama},
  journal={Evolutionary Ecology},
  year={2005},
  volume={8},
  pages={357-368}
}
We studied the reproductive investment of microtine rodents (bank vole (Clethrionomys glareolus),Microtus epiroticus andMicrotus agrestis) in western Finland under predation risk from small mustelids. During 1984–1992, the yearly mean litter size of overwintered bank voles was smaller at high least weasel and stoat densities than at low densities (close to 3 versus 4–5). In addition, the annual mean litter size of young bank voles was negatively correlated to the least weasel density. In youngM… CONTINUE READING

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