Accession Number:

AD0779875

Title:

Diffusion-Induced Instability in Model Ecosystems: Another Possible Explanation of Patchiness.

Descriptive Note:

Technical rept.,

Corporate Author:

JOHNS HOPKINS UNIV BALTIMORE MD CHESAPEAKE BAY INST

Personal Author(s):

Report Date:

1974-05-01

Pagination or Media Count:

23.0

Abstract:

As a diffusion process in an ecosystem tends to give rise to a uniform density of population in space, it may be expected that diffusion plays a general role of increasing the stability in a system of mixed populations and resources. However, diffusion may also induce an instability to a system which is basically stable without diffusion. Thus a system of two interacting and diffusing populations both being co-existent in a spatially uniform distribution, hence with no patterns, may exhibit an interaction-diffusion instability. The instability results in a form of biological waves in space and time, thus leading to a patchiness. Author

Subject Categories:

  • Biology
  • Ecology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE