シライシ　マサシ   SHIRAISHI MASASHI   白石　允梓    所属   明治大学研究・知財戦略機構・農場  研究・知財戦略機構    職種   特任准教授
言語種別	英語
発行・発表の年月	2019/03
形態種別	学術雑誌
査読	査読あり
標題	Diverse stochasticity leads a colony of ants to optimal foraging.
執筆形態	共著(筆頭者)
掲載誌名	Journal of theoretical biology
掲載区分	国外
巻・号・頁	465,pp.7-16
著者・共著者	Shiraishi Masashi, Takeuchi Rito, Nakagawa Hiroyuki, Nishimura Shin I, Awazu Akinori, Nishimori Hiraku
概要	A mathematical model of garden ants (Lasius japonicus) is introduced herein to investigate the relationship between the distribution of the degree of stochasticity in following pheromone trails and the group foraging efficiency. Numerical simulations of the model indicate that depending on the systematic change of the feeding environment, the optimal distribution of stochasticity shifts from a mixture of almost deterministic and mildly stochastic ants to a contrasted mixture of almost deterministic ants and highly stochastic ants. In addition, the interaction between the stochasticity and the pheromone path regulates the dynamics of the foraging efficiency optimization. Stochasticity could strengthen the collective efficiency when the variance in the sensitivity to pheromone for ants is introduced in the model.
DOI	10.1016/j.jtbi.2019.01.002
ISSN	1095-8541
PMID	30629963