The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Evolutionary effects of different dispersal modes on the origin of polymorphic crypsis in predator-prey systems

På svenska

Author

  • Jennie Holmér

Summary, in English

Scenario: Using adaptive dynamic theory, expose a monomorphic prey population to two habitat types and a visual predator. Questions: What circumstances can lead to the evolution of polymorphic crypsis? How is the outcome affected by the dispersal pattern of the prey and predator, by the amount of predation, and by the trade-off strength between the habitats? Mathematical method: I modelled three different dispersal modes: passive dispersal for the prey and a stationary predator; passive dispersal for the prey and habitat choice for the predator; and habitat choice for the prey and no dispersal for the predator. Conclusions: The different dispersal models produce only minor differences in outcomes. Dispersal rate also seems to have relatively little influence on the evolutionary outcome, with low dispersal rate slightly favouring evolutionary divergence. Other factors (such as the amount of predation and strength of trade-off between the habitats) appear to be more crucial.

Publishing year

2011

Language

English

Pages

765-778

Publication/Series

Evolutionary Ecology Research

Volume

13

Issue

8

Document type

Journal article

Publisher

Evolutionary Ecology Ltd

Topic

  • Earth and Related Environmental Sciences

Keywords

  • adaptive dynamics
  • dispersal
  • habitat choice
  • heterogeneous environment
  • polymorphic crypsis

Status

Published

ISBN/ISSN/Other

  • ISSN: 1522-0613