Simultaneous positive and negative density-dependent dispersal in a colonial bird species.

@article{Kim2009SimultaneousPA,
  title={Simultaneous positive and negative density-dependent dispersal in a colonial bird species.},
  author={Sin‐Yeon Kim and Roxana Torres and Hugh Drummond},
  journal={Ecology},
  year={2009},
  volume={90 1},
  pages={
          230-9
        }
}
Contradictory patterns of density-dependent animal dispersal can potentially be reconciled by integrating the conspecific attraction hypothesis with the traditional competition hypothesis. We propose a hypothesis that predicts a U-shaped relationship between density and both natal and breeding dispersal distance. Using 10 years of observations on a breeding colony of the Blue-footed Booby (Sula nebouxii), the hypothesis was confirmed by documenting simultaneous positive and negative density… 

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