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Robert Richter, Uwe E. Berger, Stefan Dullinger, Franz Essl, Michael Leitner, Matthew Smith and Gero Vogl Spread of invasive ragweed: climate change, management and how to reduce allergy costs Journal of Applied Ecology 50

Article first published online: 27 AUG 2013 | DOI: 10.1111/1365-2664.12156

Our study illustrates that management of invasive alien species has an economic benefit beside natural conservation. We provide guidance for the future management using the example of ragweed in Austria and Bavaria and show that although the species has expanded its range and abundance substantially in recent years, a well-designed and ambitious management programme still may yield substantial benefits. This is true for current climatic conditions as well as for future climate change scenarios, albeit management costs increase with a warming climate. However, possible gains are increasing in parallel. Given the scale of impacts on human health, and the substantial gains accrued from management, our results suggest that it is wise to halt further spread of ragweed.

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