- 一般社団法人 日本生物物理学会
- 生物物理 (ISSN:05824052)
- vol.18, no.3, pp.130-136, 1978-05-25 (Released:2009-05-25)
It has been observed that plankton displays spatial heterogeneity (patchiness) even though its environment appears homogeneous. As a model mechanism to explain this phenomenon, an interaction model is proposed which is in a prey-predator relationship. The model considered here is a generalized Lotka-Volterra system with diffusion. The results show that perturbations caused by fluctuations give rise to patchiness after long time: it depends on certain biological factors.A mathematical tool is the theory of bifurcation for partial differential equations.