The Guianese population of the fire ant Solenopsis saevissima is unicolonial  

作　　者：Alain Lenoir Severine Devers Axel Touchard Alain Dejean 

机构地区：[1]lRBI, Institut de Recherche sur la Biologie de I'lnsecte, UMR CNRS 7261, Universite Francois Rabelais, 37200 Tours [2]CNRS, Ecologie des Forets de Guyane (UMR CNRS 8172), Campus agronomique, BP 316, 97379 Kourou cedex [3]Universite de Toulouse, UPS, INP, Ecolab, 118 route de Narbonne, 31062 Toulouse and CNRS, Ecolab (UMR-CNRS 5245), 31062 Toulouse, France

出　　处：《Insect Science》2016年第5期739-745,共7页昆虫科学（英文版）

摘　　要：In this study, conducted in French Guiana, a part of the native range of the fire ant Solenopsis saevissima, we compared the cuticular hydrocarbon profiles of media workers with previous results based on intraspecific aggressiveness tests. We noted a strong congruence between the two studies permitting us to delimit 2 supercolonies extending over large distances （up to 54 kin）, a phenomenon known as unicoloniality. Solenopsis geminata workers, taken as an out-group for cluster analyses, have a very different cuticular hydrocarbon profile. Because S. saevissima has been reported outside its native range, our conclusion is that this species has the potential to become invasive because unicoloniality （i.e., the main attribute for ants to become invasive） was shown at least for the Guianese population.In this study, conducted in French Guiana, a part of the native range of the fire ant Solenopsis saevissima, we compared the cuticular hydrocarbon profiles of media workers with previous results based on intraspecific aggressiveness tests. We noted a strong congruence between the two studies permitting us to delimit 2 supercolonies extending over large distances （up to 54 kin）, a phenomenon known as unicoloniality. Solenopsis geminata workers, taken as an out-group for cluster analyses, have a very different cuticular hydrocarbon profile. Because S. saevissima has been reported outside its native range, our conclusion is that this species has the potential to become invasive because unicoloniality （i.e., the main attribute for ants to become invasive） was shown at least for the Guianese population.

关 键 词：biological invasions cuticular hydrocarbons fire ants UNICOLONIALITY 

分 类 号：Q[生物学]