Université de Fribourg

Invasive alien predator causes rapid declines of native European ladybirds

Roy, Helen E. ; Adriaens, Tim ; Isaac, Nick J. B. ; Kenis, Marc ; Onkelinx, Thierry ; Martin, Gilles San ; Brown, Peter M. J. ; Hautier, Louis ; Poland, Remy ; Roy, David B. ; Comont, Richard ; Eschen, René ; Frost, Robert ; Zindel, Renate ; Vlaenderen, Johan Van ; Nedvěd, Oldrich ; Ravn, Hans Peter ; Grégoire, Jean Claude ; Biseau, Jean Christophe de ; Maes, Dirk

In: Diversity and Distributions, 2012, p. -

Aim Invasive alien species (IAS) are recognized as major drivers of biodiversity loss, but few causal relationships between IAS and species declines have been documented. In this study, we compare the distribution (Belgium and Britain) and abundance (Belgium, Britain and Switzerland) of formerly common and widespread native ladybirds before and after the arrival of Harmonia axyridis, a...

Université de Fribourg

Current and potential management strategies against Harmonia axyridis

Kenis, Marc ; Roy, Helen E. ; Zindel, Renate ; Majerus, Michael E. N.

In: BioControl, 2008, vol. 53, no. 1, p. 235-252

This paper reviews the current and potential methods to control the harlequin ladybird, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), an Asian predatory beetle invasive in Europe and the Americas where it has become a human nuisance, a grape and wine pest and a threat to native biodiversity. Current methods to manage this invasive species include: techniques to mechanically prevent...