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Stability in a One-Predator-Three-Prey Community

May (1973) showed that complex model communities tend to be less stable than simple model communities, but noted that complex real communities do appear to be stable. Therefore research should seek to elucidate what kinds of complexities are stabilizing. Five model predator-prey communities, developed from the literature and based on the fisher-porcupine-snowshoe hare-deer carrion predator-prey community in Upper Peninsula Michigan, show stability in both one-predator-one-prey and one-predator-three-prey forms. In addition, most of the one-predator-three-prey communities are more stable than one-predator-one-prey communities. One major reason for this stability of the more complex communities is believed to be lack of competition between the prey. Lack of competition between prey is believed to be reasonably widespread in predator-prey communities.