Growth rate change driven by external perturbation in the azuki bean weevil

Takao Fukano, Yukio Pegio Gunji

Research output: Contribution to journalArticle


In laboratory experiments we obtain that the apparent growth rate of the population becomes larger than one under the normal condition, triggered by the external perturbation as the removal of individuals. The changed growth rate is stable for a while. We also propose a simple model of population dynamics allowing both matching and mis-matching the trend of the external perturbation, and show that the growth rate of the model population is changeable and stable to some extent.

Original languageEnglish
Pages (from-to)723-729
Number of pages7
JournalChaos, solitons and fractals
Issue number4
Publication statusPublished - 2003 Aug 1


ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematics(all)
  • Physics and Astronomy(all)
  • Applied Mathematics

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