Biological Invasions

, Volume 11, Issue 10, pp 2329–2339

Four mutually incompatible Argentine ant supercolonies in Japan: inferring invasion history of introduced Argentine ants from their social structure

  • Eiriki Sunamura
  • Satoko Hatsumi
  • Satoshi Karino
  • Koji Nishisue
  • Mamoru Terayama
  • Osamu Kitade
  • Sadahiro Tatsuki
Original Paper

Abstract

In recent years, highly invasive ant species successively invaded warm regions of Asia. In Japan, the Argentine ant, Linepithema humile, has become established in several coastal regions. This species forms unusual social organizations called supercolonies consisting of numerous mutually non-aggressive nests. We studied the behavioral relationships, similarity of cuticular hydrocarbon profiles (nestmate recognition cue), and genetic relationships among the introduced Argentine ant populations of Japan. The Japanese populations were divided into four behaviorally, chemically, and genetically distinct supercolonies, which may have derived from independent source populations. The result represents the recent trend of increasing invasions of invasive ants to Asia. The discontinuous distribution of one supercolony throughout most of the Japanese range suggests rapid expansion of the supercolony via human-mediated jump dispersal. Meanwhile, localization of the other three supercolonies in Kobe Port provides the first evidence for multiple invasions of distinct supercolonies into a base for international trade.

Keywords

Asia Biological invasion Invasion history Japan Linepithema humile Supercolony 

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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Eiriki Sunamura
    • 1
  • Satoko Hatsumi
    • 2
  • Satoshi Karino
    • 2
  • Koji Nishisue
    • 1
  • Mamoru Terayama
    • 1
  • Osamu Kitade
    • 2
  • Sadahiro Tatsuki
    • 1
  1. 1.Graduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan
  2. 2.College of ScienceIbaraki UniversityMitoJapan

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