Abstract
Several species of fire ants, well known for their painful stings, have spread from their native ranges and have become invasive pests, notably Solenopsis geminata, Solenopsis invicta, and Solenopsis richteri. Here, I report the first known exotic spread of another fire ant, Solenopsis nr. saevissima, a South American species now established on the French West Indian island of Guadeloupe. In 2008, I first found this shiny yellow fire ant at Plage de Viard beach on Guadeloupe. Genetic analyses indicated that this species was close to the yellow–brown variant of S. saevissima known only from Western Amazonia, but not an exact match. I returned to Guadeloupe in 2011 and found S. nr. saevissima at Plage de Viard plus five additional sites along a >20 km stretch on the east coast of Basse-Terre, from the Jarry commercial shipping port in the north to Plage Roseau in the south. It seems most likely that S. nr. saevissima arrived in Guadeloupe from South America in a commercial shipment unloaded at the port in Jarry. It is unclear whether this species will develop into a major new problem. Solenopsis nr. saevissima may simply replace another pernicious fire ant, S. geminata, which apparently arrived in Guadeloupe from South America several 100 years ago.
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Acknowledgments
I thank M. Wetterer for comments on this manuscript; L. Davis for identification; D. Shoemaker for genetic analyses; P. McCormack and G. Alpert for the photos; W. O’Brien for GIS help; D.P. Wojcik and S.D. Porter for compiling their valuable FORMIS bibliography; R. Pasos and W. Howerton of the FAU library for processing so many interlibrary loans; and the Fulbright Foundation, the National Science Foundation (DES-0515648), and Florida Atlantic University for financial support.
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Wetterer, J.K. A South American fire ant, Solenopsis nr. saevissima, in Guadeloupe, French West Indies. Biol Invasions 16, 755–758 (2014). https://doi.org/10.1007/s10530-013-0534-8
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DOI: https://doi.org/10.1007/s10530-013-0534-8