Chaotic dynamics in food web systems
نویسندگان
چکیده
It is a long-standing debate among ecologists whether chaotic dynamics are likely to occur in food web systems. Simple mathematical models predict frequent chaotic dynamics for food webs of relatively low complexity suggesting that the long-term dynamics of natural populations could be essentially unpredictable. This result is at odds with observations from the field where chaos appears to be rare. In this contribution I review the evidence for chaotic dynamics from mathematical food web models of varying complexity. I argue that mathematical models which allow for the specific structural properties of natural food webs are more likely to predict realistic patterns of chaos and stability in field and experimental food webs.
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Gregor F. Fussmann* and Gerd Heber Department of Ecology and Evolutionary Biology, Cornell University, Corson Hall, Ithaca, NY, 14853, U.S.A. Cornell Theory Center, Cornell University, Rhodes Hall, Ithaca, NY, 14853, U.S.A. *Correspondence and present address: Institute for Biochemistry and Biology, University of Potsdam, Maulbeerallee 2, D-14469 Potsdam, Germany. E-mail: [email protected]...
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