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predator-mediated coexistenceräubervermittelte Koexistenz (ger.)

  • The stable occurrence of competitors of differents species in a community which is due to the influence of a predator species.  

    Most models of predator-mediated coexistence have been limited to closed systems at equilibrium. Reports of these studies have indicated that while predation can result in coexistence of otherwise unstable prey assemblages, the result is limited to a small subset of the parameter space, and is thus not very likely to occur.

    Caswell, H. (1976). A model of predator-mediated coexistence. Bulletin of the Ecological Society of America 57, 8.


    predator-mediated coexistence does not necessarily imply that the predator has a preference for the dominant competitor.

    Hastings, A. (1978). Spatial heterogeneity and the stability of predator-prey systems: predator-mediated coexistence. Theor. Popul. Biol. 14, 380-395: 389.


    it is customary, when looking for predator-mediated coexistence, to refer to the problem as one of predator- generated stability

    Caswell, H. (1978). Predator-mediated coexistence: A nonequilibrium model. Amer. Nat. 112, 127-154: 129.