A Search for Emergent Competitive Phenomena: The Dynamics of Multispecies Drosophila Systems
1975
Richmond, Rollin C. | Gilpin, Michael E. | Salas, Santiago Perez | Ayala, Francisco J.
Theoretical analyses of multispecies competition suggest that the stable coexistence of three competition species may occur even when all the pairwise combinations of the same species do not result in stable equilibria. In an attempt to discover such an emergent property of multispecies competition, we constructed laboratory populations consisting of one, two, and three species of Drosophila in all possible combinations. Two series of experiments at 19° and 22°C were conducted. We found no evidence of emergent behavior; the outcome of competition in three—species populations could be adequately predicted from a knowledge of the pairwise interactions among the species.
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