Spatial Enhancement of Population Uncertainty in Model Ecosystems(General)
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概要
- 論文の詳細を見る
The extinction process in model ecosystems is studied on two-dimensional lattice. Simulations are carried out by two different methods: lattice model (LM) and mean-field simulation (MFS). In the former case interaction occurs between adjacent lattice points, whereas in the latter case interaction globally occurs between any pair of lattice points. Computer simulation reveals the occurrence of fluctuation enhancement which means that there are a variety of paths to the extinction. It is found that the enhancement for LM is stronger, compared to MFS. The critical behavior of extinct species may play an important role for the enhancement.
- 社団法人日本物理学会の論文
- 2004-01-15
著者
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Tainaka Kei-ichi
Department Of Systems Engineering Shizuoka University
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Itoh Yu
Department Of Molecular Biology Osaka Medical Center For Cancer And Cardiovascular Diseases
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Itoh Yu
Department Of Systems Engineering Shizuoka University
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Tainaka Kei-ichi
Department Of Mathematical Science Ibaraki University
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