Autonomous change of behavior for environmental context: An intermittent search model with misunderstanding search pattern

Hisashi Murakami*, Yukio Pegio Gunji

*この研究の対応する著者

研究成果: Article査読

抄録

Although foraging patterns have long been predicted to autonomously adapt to environmental conditions, empirical evidence has been found in recent years. This evidence suggests that the search strategy of animals is open to change so that animals can flexibly respond to their environment. In this study, we began with a simple computational model that possesses the principal features of an intermittent strategy, ie, careful local searches separated by longer steps, as a mechanism for relocation, where an agent in the model follows a rule to switch between two phases, but it could misunderstand this rule, ie, the agent follows an ambiguous switching rule. Thanks to this ambiguity, the agent's foraging strategy can continuously change. First, we demonstrate that our model can exhibit an autonomous change of strategy from Brownian‐type to Lévy type depending on the prey density, and we investigate the distribution of time intervals for switching between the phases. Moreover, we show that the model can display higher search efficiency than a correlated random walk.

本文言語English
ページ(範囲)7013-7021
ページ数9
ジャーナルMathematical Methods in the Applied Sciences
40
18
DOI
出版ステータスPublished - 2017 12

ASJC Scopus subject areas

  • 数学 (全般)
  • 工学(全般)

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