Parental effort and reproductive skew in coalitions of brood rearing female common eiders

• Published in: The American Naturalist
• Main Authors: Ost, M., Clark, C.W., Kilpi, M., Ydenberg, R.C.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2007
• Subjects: antarctic petrel; behavior; body condition; care; costs; group-size; natural-selection; sexual conflict; somateria-mollissima; vigilance; Antarctic; Nash; Antarc*; Antarctic Petrel; Somateria mollissima
• Online Access: https://research.wur.nl/en/publications/parental-effort-and-reproductive-skew-in-coalitions-of-brood-rear; https://doi.org/10.1086/510213

Members of breeding groups face conflicts over parental effort when balancing antipredatory vigilance and feeding. Empirical evidence has shown disparate responses to manipulations of parental effort. We develop a model in which we determine the evolutionarily stable effort of partners given their b...