|| 要旨トップ | 本企画の概要 |||日本生態学会第65回全国大会 (2018年3月、札幌) 講演要旨
シンポジウム S17-3 （Presentation in Symposium）
The red imported fire ant (Solenopsis invicta), a highly invasive ant species native to South America, has been introduced into numerous places around the world recently including Japan. An earlier study indicated that virtually all recent invasive populations of S. invicta have resulted from independent introductions originating in the US where this ant is also invasive (Note that data for the invasion in Japan wasn’t included in this study as this study was published before the finding of S. invicta in Japan). Such an invasion pattern apparently follows a bridgehead invasion scenario where a particular invasive population (the US in this case), instead of native range, serves as the major source for all subsequent incursions. This paper attempts to discuss how interplays with various factors contribute to success of this ant under the bridgehead invasion scenario, and also to highlight what we can learn, especially from a management perspective, from this case study. Progress and future directions in research on this topic will be featured in this paper as well.