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Future ant invasions in France

Published online by Cambridge University Press:  02 January 2014

CLEO BERTELSMEIER  and
FRANCK COURCHAMP
CLEO BERTELSMEIER*
Affiliation:
Ecologie, Systématique en Evolution, UMR CNRS 8079, Universitaire Paris Sud, Orsay Cedex 91405, France
FRANCK COURCHAMP
Affiliation:
Ecologie, Systématique en Evolution, UMR CNRS 8079, Universitaire Paris Sud, Orsay Cedex 91405, France
*
*Correspondence: Dr Cleo Bertelsmeier Tel: +33 01 69 15 56 93 Fax: +33 01 69 15 56 96 e-mail: cleo.bertelsmeier@u-psud.fr, cleo.bertelsmeier@gmail.com
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Summary

Ants are among the worst invasive species, and can have tremendous negative impacts on native biodiversity, agriculture, estates, property and human health. Invasive ants are extremely difficult to control, and thus early detection is essential to prevent ant invasions, in particular through surveillance efforts at ports of entry. This paper assesses the potential distribution of 14 of the worst invasive ant species in France, under current and future climatic conditions. Consensus species distribution models, using five different modelling techniques, three global climate models and two CO2 emission scenarios, indicated that France presented suitable areas for 10/14 species, including five listed on the Invasive Species Specialist Group's selection of the world's 100 worst invasive species. Among these 10 species, eight were predicted to increase their potential range with climate change. Areas with the highest concentration of potential invaders were mainly located along the coastline, especially in the south-west of France, but all departments appeared to be climatically suitable for at least two invasive species. A ranking of climatic suitability per species for 17 major airports and 14 maritime ports indicated that the ports of entry with the highest suitability were located in Biarritz, Toulon and Nice, and the species with the greatest potential distribution in France were Lasius neglectus and Linepithema humile, followed by Solenopsis richteri, Pheidole megacephala and Wasmannia auropunctata.

Keywords

biological invasionsclimate changeinvasive antsFrancespecies distribution models
Type
THEMATIC SECTION: Spatial Simulation Models in Planning for Resilience
Information
Environmental Conservation , Volume 41 , Issue 2 , June 2014 , pp. 217 - 228
Copyright
Copyright © Foundation for Environmental Conservation 2014 

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