On the optimal duration of memory of losing a conflict - a mathematical model approach

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Abstract

In male broad-horned flour beetles, Gnatocerus cornutus, losers of conflicts avoid fighting at subsequent encounters. The loser effect lasts for 4 days. It is considered that the memory of losing remains for 4 days. The duration of the memory is expected to affect the fitness, and the duration, 4 days, is expected to be optimal.We consider the fitness of a mutant in an homogeneous population to obtain the optimal duration. Here we carry out simulations using an individual-based model. The results suggest that the trade-off of getting mating chances and avoiding damage can cause the optimal duration of the memory, and that the decay in time of the female population is an important factor.

Original languageEnglish
Pages (from-to)270-281
Number of pages12
JournalJournal of Biological Dynamics
Volume4
Issue number3
DOIs
Publication statusPublished - May 2010

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Keywords

  • Duration of memory
  • Evolutionary stable strategy
  • Gnatocerus cornutus
  • Individual-based model
  • Loser effect

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology

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