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Disturbance, Patch Formation, and Community Structure
Simon A. Levin and R. T. Paine
Proceedings of the National Academy of Sciences of the United States of America
Vol. 71, No. 7 (Jul., 1974), pp. 2744-2747
Published by: National Academy of Sciences
Stable URL: http://www.jstor.org/stable/63642
Page Count: 4
You can always find the topics here!Topics: Species, Modeling, Community structure, Plant ecology, Mussels, Ecosystems, Spatial models, Frequency distribution, Species extinction, Perceptual localization
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A model is developed to relate community structure to level of environmental disturbance in systems in which the effects of disturbance are localized in space and time. In general these disturbances create a pattern of spatio-temporal heterogeneity by renewing a limiting resource, thereby permitting utilization by species that are not dominant competitors. The proposed model predicts the frequency distribution of these renewed areas, with regard to size and age (colonization stage). The model thus allows one to relate overall system pattern to the local biology within these areas, to compare various areas with different levels of disturbance, and to predict the effects of new disturbance.
Proceedings of the National Academy of Sciences of the United States of America © 1974 National Academy of Sciences