Egg adoption can explain joint egg-laying in common eiders

@article{Robertson1998EggAC,
  title={Egg adoption can explain joint egg-laying in common eiders},
  author={Gregory J. Robertson},
  journal={Behavioral Ecology and Sociobiology},
  year={1998},
  volume={43},
  pages={289-296}
}
Hypotheses regarding the evolution and maintenance of intraspecific nest parasitism were tested with data collected during a 3-year study of common eiders (Somateria mollissima) breeding near Churchill, Manitoba. The nest parasitism rate was highest (42.4% of nests) during the year with the highest nest density and the best environmental conditions, and lowest (20.2% of nests) in the year with the lowest nest density and the poorest environmental conditions. Over the nesting season, parasitic… CONTINUE READING

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