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Applied Entomology and Zoology - Invasion by the Argentine ant Linepithema humile (Mayr) (Hymenoptera: Formicidae) causes the collapse of global ecosystems. Attempts to exterminate this invasive... 相似文献
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Nishisue K Sunamura E Tanaka Y Sakamoto H Suzuki S Fukumoto T Terayama M Tatsuki S 《Journal of economic entomology》2010,103(5):1784-1789
Previous short-term experiments showed that trail following behavior of the Argentine ant, Linepithema humile (Mayr) (Hymenoptera: Formicidae), can be disrupted by a high concentration of synthetic trail pheromone component (Z)-9-hexadecenal. In this study, a long-term field trial was conducted in 100-m2 plots of house gardens in an urban area of Japan to see whether the control effect on Argentine ants can be obtained by permeating synthetic trail pheromone from dispensers. The dispensers were placed in the experimental plots during the ant's active season (April-November) for 2 yr with monthly renewal. To estimate Argentine ant population density, foraging activity of Argentine ants in the study plots was monitored by monthly bait surveys. Throughout the study period, Argentine ant foraging activity was suppressed in the presence of the dispensers, presumably via trail forming inhibition. In contrast, the level of foraging activity was not different between treatment and no-treatment plots when the dispensers were temporarily removed, suggesting that treatment with pheromone dispensers did not suppress Argentine ant density in the treatment plots. Population decline may be expected with larger-scale treatment that covers a significant portion of the ant colony or with improvement in the potency of the disruptant. 相似文献
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Eiriki Sunamura Satoko Hatsumi Satoshi Karino Koji Nishisue Mamoru Terayama Osamu Kitade Sadahiro Tatsuki 《Biological invasions》2009,11(10):2329-2339
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. 相似文献
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