Nest Parasitism in Goldeneyes Bucephala clangula: Some Evolutionary Aspects

  title={Nest Parasitism in Goldeneyes Bucephala clangula: Some Evolutionary Aspects},
  author={Malte Andersson},
  journal={The American Naturalist},
  pages={1 - 16}
  • M. Andersson
  • Published 1 July 1982
  • Biology
  • The American Naturalist
Intraspecific nest parasitism, in which parasitic females lay eggs in the nests of host females of the same species, occurs in many birds and certain insects. Most known cases concern waterfowl (Anatidae). We examined host responses to experimental parasitism, adding eggs to nests of laying goldeneye ducks. Three different hypotheses on host responses yield mutually exclusive predictions. (1) The host is a determinate layer; her own clutch is unaffected by the number of parasitic eggs. (2) The… 
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