Conspecific Food Competition Explains Variability in Colony Size : a Test in Magellanic Penguins

@inproceedings{ForeroConspecificFC,
  title={Conspecific Food Competition Explains Variability in Colony Size : a Test in Magellanic Penguins},
  author={Manuela G. Forero and Jos{\'e} Luis Tella and Keith A Hobson and Marcelo Bertellotti and G. Blanco}
}
Food availability has been proposed as one of the main factors regulating population sizes in birds. Seabirds have provided evidence for the hypothesis that food depletion due to intraspecific competition explains variability in colony size. However, the predictions derived from this hypothesis have not been fully tested due mainly to the difficulties in measuring food availability in marine environments. We measured stable isotopes of nitrogen (d15N) and carbon (d13C) in the blood of… CONTINUE READING
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