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- Title
Reinterpreting space, time lags, and functional responses in ecological models.
- Authors
Keeling, M J; Wilson, H B; Pacala, S W
- Abstract
Natural enemy-victim interactions are of major applied importance and of fundamental interest to ecologists. A key question is what stabilizes these interactions, allowing the long-term coexistence of the two species. Three main theoretical explanations have been proposed: behavioral responses, time-dependent factors such as delayed density dependence, and spatial heterogeneity. Here, using the powerful moment-closure technique, we show a fundamental equivalence between these three elements. Limited movement by organisms is a ubiquitous feature of ecological systems, allowing spatial structure to develop; we show that the effects of this can be naturally described in terms of time lags or within-generation functional responses.
- Publication
Science (New York, N.Y.), 2000, Vol 290, Issue 5497, p1758
- ISSN
0036-8075
- Publication type
Journal Article
- DOI
10.1126/science.290.5497.1758