The economics of nestmate killing in avian brood parasites: a provisions trade-off

  title={The economics of nestmate killing in avian brood parasites: a provisions trade-off},
  author={Rosalyn S Gloag and Diego Tom{\'a}s Tuero and Vanina Dafne Fiorini and Juan Carlos Reboreda and Alex Kacelnik},
  journal={Behavioral Ecology},
Some brood parasites kill all their host’s offspring shortly after hatching, whereas others are tolerant and are reared in mixed host–parasite broods. This difference may arise because nestling parasites face a "provisions trade-off," whereby the presence of host nestlings can increase or decrease a parasite’s food intake depending on whether host young cause parents to supply more extra food than they consume. We model this trade-off and show that the optimal nestmate number from a parasite’s… 

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