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2018 Fiscal Year Final Research Report

Evolution of army ant syndrome: lessons from non-army ant doryline ants

Research Project

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Project/Area Number 16H05769
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Ecology/Environment
Research InstitutionKagawa University

Principal Investigator

Ito Fuminori  香川大学, 農学部, 教授 (50260683)

Co-Investigator(Kenkyū-buntansha) 江口 克之  首都大学東京, 理学研究科, 准教授 (30523419)
Project Period (FY) 2016-04-01 – 2019-03-31
Keywords集団行動 / 餌 / 周期性
Outline of Final Research Achievements

Colony composition, prey menu, reproductive cycle, caste differentiation and foraging behavior were investigated for non-army doryline ants in southeast Asia. Colony size varies from 20 in most species to more than 1000 workers in a few species of Cerapachys. At least seven species containe polygynous colonies. All species of Lioponera showed non-cyclic reproduction whereas other species showed cyclic reproduction. Prey specialization varies species to species: some Cerapachys species fed on various different kind of arthropod while Lioponera and some other genera accepted ant brood only.

Free Research Field

昆虫生態学

Academic Significance and Societal Importance of the Research Achievements

熱帯や亜熱帯に分布する軍隊アリの仲間は、コロニーサイズが巨大であることから捕食者として重要であるだけでなく、その洗練された集団採餌行動や巣の移動等、自律的な行動の機能やその機構を理解する上で重要なグループである。本研究では、軍隊アリに近縁な複数の属の行動や習性を、特にコロニー構成や採餌行動、繁殖の周期性に注目して、明らかにした。これらの比較から軍隊アリ的習性の進化を検討するが可能になった。

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Published: 2020-03-30  

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