Mobility Promotes and Jeopardizes Biodiversity in Rock-Paper-Scissors Games

author: Tobias Reichenbach, Statistical and Biological Physics, University of Munich
published: Nov. 26, 2007,   recorded: October 2007,   views: 213

Slides

Related Open Educational Resources

Related content

Report a problem or upload files

If you have found a problem with this lecture or would like to send us extra material, articles, exercises, etc., please use our ticket system to describe your request and upload the data.
Enter your e-mail into the 'Cc' field, and we will keep you updated with your request's status.
Lecture popularity: You need to login to cast your vote.
  Bibliography

Description

Counterintuitive to a naive understanding of Darwinian evolution, where among two interacting species one is expected to be fitter than the other and therefore outcompetes it, a surprising biodiversity exists within the earth's ecosystems. Rock-paper-scissors games, where three strategies cyclically dominate each other, have emerged as a fruitful metaphor for the explanation of biodiversity. In this talk we discuss populations spatially coevolving with local cyclic dominance, and show that they are capable of preserving coexistence of all subpopulations, and in this way ensuring biodiversity. We find that the individuals' mobility competes with the locality of interactions (cyclic dominance) such that biodiversity gets lost above a certain mobility threshold. Below this critical value, all subpopulations coexist forming fascinating moving patterns composed of entangled spirals, which we describe analytically.

See Also:

Download slides icon Download slides: eccs07_reichenbach_mpj_01.pdf (1.4┬áMB)


Help icon Streaming Video Help

Link this page

Would you like to put a link to this lecture on your homepage?
Go ahead! Copy the HTML snippet !

Write your own review or comment:

make sure you have javascript enabled or clear this field: