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Université de Fribourg

A vision for global monitoring of biological invasions

Pyšek, Petr ; Jeschke, Jonathan M. ; Blackburn, Tim M. ; Bacher, Sven ; Capinha, César ; Costello, Mark J. ; Fernández, Miguel ; Gregory, Richard D. ; Hobern, Donald ; Hui, Cang ; Jetz, Walter ; Kumschick, Sabrina ; McGrannachan, Chris ; Pergl, Jan ; Roy, Helen E. ; Scalera, Riccardo ; Squires, Zoe E. ; R.U.Wilson, John ; Winter, Marten ; Genovesi, Piero ; McGeoch, Melodie A.

In: Biological Conservation, 2017, vol. 213, no. Part B, p. 295–308

Managing biological invasions relies on good global coverage of species distributions. Accurate information on alien species distributions, obtained from international policy and cross-border co-operation, is required to evaluate trans-boundary and trading partnership risks. However, a standardized approach for systematically monitoring alien species and tracking biological invasions is still...

Université de Fribourg

Preventive application of an entomopathogenic fungus in cover crops for wireworm control

Rogge, Sina Alexandra ; Mayerhofer, Johanna ; Enkerli, Jürg ; Bacher, Sven ; Grabenweger, Giselher

In: BioControl, 2017, vol. 62, no. 5, p. 613–623

Efficacy of the Metarhizium brunneum Petch (Hypocreales: Clavicipitaceae) strain ART2825 for control of wireworms (Agriotes obscurus (L.), Coleoptera: Elateridae) was examined in a semi-field pot experiment. Pots were treated in late summer during sowing of spring oat as a cover crop. Survival of wireworms was assessed four weeks after their release in October 2013, and 30 weeks after release in...

Université de Fribourg

Socio-economic impact classification of alien taxa (SEICAT)

Bacher, Sven ; Blackburn, Tim M. ; Essl, Franz ; Genovesi, Piero ; Heikkilä, Jaakko ; Jeschke, Jonathan M. ; Jones, Glyn ; Keller, Reuben ; Kenis, Marc ; Kueffer, Christoph ; Martinou, Angeliki F. ; Nentwig, Wolfgang ; Pergl, Jan ; Pyšek, Petr ; Rabitsch, Wolfgang ; Richardson, David M. ; Roy, Helen E. ; Saul, Wolf-Christian ; Scalera, Riccardo ; Vilà, Montserrat ; Wilson, John R. U. ; Kumschick, Sabrina

In: Methods in Ecology and Evolution, 2017, p. -

Many alien taxa are known to cause socio-economic impacts by affecting the different constituents of human well-being (security; material and non-material assets; health; social, spiritual and cultural relations; freedom of choice and action). Attempts to quantify socio-economic impacts in monetary terms are unlikely to provide a useful basis for evaluating and comparing impacts of alien taxa...

Université de Fribourg

A simple in vitro method to study interactions between soil insects, entomopathogenic fungi, and plant extracts

Eckard, Sonja ; Bacher, Sven ; Enkerli, Jürg ; Grabenweger, Giselher

In: Entomologia Experimentalis et Applicata, 2017, vol. 163, no. 3, p. 315–327

A combined application of a biological control agent, such as an entomopathogenic fungus (EPF), with other means of pest control may lead to enhanced or more reliable efficacy of the biocontrol agent. Ideally, the combined components would interact synergistically, yielding significantly higher mortality of the target pest. The mode of such interactions is often unclear and particularly...

Université de Fribourg

Scientific and normative foundations for the valuation of alien-species impacts: thirteen core principles

Essl, Franz ; Hulme, Philip E. ; Jeschke, Jonathan M. ; Keller, Reuben ; Pyšek, Petr ; Richardson, David M. ; Saul, Wolf-Christian ; Bacher, Sven ; Dullinger, Stefan ; Estévez, Rodrigo A. ; Kueffer, Christoph ; Roy, Helen E. ; Seebens, Hanno ; Rabitsch, Wolfgang

In: BioScience, 2017, vol. 67, no. 2, p. 166–178

Biological invasions cause many impacts that differ widely in how they are perceived. We argue that many conflicts in the valuation of the impacts of alien species are attributable to differences in the framing of the issue and implicit assumptions—such conflicts are often not acknowledged. We present 13 principles that can help guide valuation and therefore inform the management of alien...