Aposematism and crypsis in a rodent: antipredator defence of the Norwegian lemming

@article{Andersson2014AposematismAC,
  title={Aposematism and crypsis in a rodent: antipredator defence of the Norwegian lemming},
  author={Malte Andersson},
  journal={Behavioral Ecology and Sociobiology},
  year={2014},
  volume={69},
  pages={571-581}
}
  • M. Andersson
  • Published 4 February 2015
  • Environmental Science
  • Behavioral Ecology and Sociobiology
Aposematism is unusual in herbivorous mammals, and exceptions help clarify its ecology and evolution. The Norwegian lemming differs from other rodents in colouration and behaviour. One hypothesis is that its black, yellow and white colours, loud calls and ferocious defence reduce predation by conspicuous aposematism. Another hypothesis is that the colouration is cryptic. These alternatives are tested in a detectability experiment comparing lemmings and sympatric grey-sided voles. All 18…