Asymmetrical effect of migration on a prey-predator model

Koshi Kitamura, Kyohei Kashiwagi, Kei ichi Tainaka, Taro Hayashi, Jin Yoshimura, Takahisa Kawai, Tsuyoshi Kajiwara

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


We present a lattice model, where prey and predator randomly walk with different rates. Computer simulations explain the asymmetrical effect: predators more frequently migrate than preys. Moreover, we find that the aggregation of species is promoted by diffusion process.

Original languageEnglish
Pages (from-to)213-217
Number of pages5
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Issue number3
Publication statusPublished - Sept 11 2006


  • Clumping degree
  • Exclude volume effect
  • Lattice Lotka-Volterra model
  • Prey-predator system
  • Random walk

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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