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Université de Fribourg

Ranking alien species based on their risks of causing environmental impacts : A global assessment of alien ungulates

Volery, Lara ; Jatavallabhula, Divija ; Scillitani, Laura ; Bertolino, Sandro ; Bacher, Sven

In: Global Change Biology, 2021, vol. 27, no. 5, p. 1003-1016

For an efficient allocation of the limited resources to alien species management, the most damaging species should be prioritized. Comparing alien species based on their impacts is not straightforward, as the same species can cause different types and magnitudes of impacts when introduced to different contexts, making it difficult to summarize its overall impact. The Environmental Impact...

Université de Fribourg

Understanding uncertainty in the Impact Classification for Alien Taxa (ICAT) assessments

Probert, Anna F. ; Volery, Lara ; Kumschick, Sabrina ; Vimercati, Giovanni ; Bacher, Sven

In: NeoBiota, 2020, vol. 62, p. 387–405

The Environmental Impact Classification for Alien Taxa (EICAT) and the Socio- Economic Impact Classification of Alien Taxa (SEICAT) have been proposed to provide unified methods for classifying alien species according to their magnitude of impacts. EICAT and SEICAT (herein “ICAT” when refered together) were designed to facilitate the comparison between taxa and invasion contexts by using a...

Université de Fribourg

MAcroecological Framework for Invasive Aliens (MAFIA): disentangling large-scale context dependence in biological invasions

Pyšek, Petr ; Bacher, Sven ; Kühn, Ingolf ; Novoa, Ana ; Catford, Jane A. ; Hulme, Philip E. ; Pergl, Jan ; Richardson, David M. ; Wilson, John R. U. ; Blackburn, Tim M.

In: NeoBiota, 2020, vol. 62, p. 407–461

Macroecology is the study of patterns, and the processes that determine those patterns, in the distribution and abundance of organisms at large scales, whether they be spatial (from hundreds of kilometres to global), temporal (from decades to centuries), and organismal (numbers of species or higher taxa). In the context of invasion ecology, macroecological studies include, for example,...

Université de Fribourg

Application of the Socio-Economic Impact Classification for Alien Taxa (SEICAT) to a global assessment of alien bird impacts

Evans, Thomas ; Blackburn, Tim M. ; Jeschke, Jonathan M. ; Probert, Anna F. ; Bacher, Sven

In: NeoBiota, 2020, vol. 62, p. 123–142

We use a recently proposed framework, the Socio-Economic Impact Classification for Alien Taxa (SEICAT) to undertake the first global assessment of the impacts of alien birds on human well-being. A review of the published literature and online resources was undertaken to collate information on the reported socio-economic impacts of 415 bird species with self-sustaining alien populations...

Université de Fribourg

Projecting the continental accumulation of alien species through to 2050

Seebens, Hanno ; Bacher, Sven ; Blackburn, Tim M. ; Capinha, César ; Dawson, Wayne ; Dullinger, Stefan ; Genovesi, Piero ; Hulme, Philip E. ; Kleunen, Mark ; Kühn, Ingolf ; Jeschke, Jonathan M. ; Lenzner, Bernd ; Liebhold, Andrew M. ; Pattison, Zarah ; Pergl, Jan ; Pyšek, Petr ; Winter, Marten ; Essl, Franz

In: Global Change Biology, 2020, p. gcb.15333

Biological invasions have steadily increased over recent centuries. However, we still lack a clear expectation about future trends in alien species numbers. In particular, we do not know whether alien species will continue to accumulate in regional floras and faunas, or whether the pace of accumulation will decrease due to the depletion of native source pools. Here, we apply a new model to...

Université de Fribourg

InvasiBES: Understanding and managing the impacts of Invasive alien species on Biodiversity and Ecosystem Services

Gallardo, Belinda ; Bacher, Sven ; Bradley, Bethany ; Comín, Francisco A. ; Gallien, Laure ; Jeschke, Jonathan M. ; Sorte, Cascade J. B. ; Vilà, Montserrat

In: NeoBiota, 2019, vol. 50, p. 109–122

Invasive Alien Species (IAS) are amongst the most significant drivers of species extinction and ecosystem degradation, causing negative impacts on ecosystem services and human well-being. InvasiBES, a project funded by BiodivERsA-Belmont Forum for 2019–2021, will use data and models across scales, habitats and species to understand and anticipate the multi-faceted impacts of IAS and to...

Université de Fribourg

Cross-fertilizing weed science and plant invasion science to improve efficient management: A European challenge

Müller-Schärer, Heinz ; Sun, Yan ; Chauvel, Bruno ; Karrer, Gerhard ; Kazinczi, Gabriella ; Kudsk, P. ; Lansink Oud, A. G. J. M. ; Schaffner, Urs ; Skjoth, C. A. ; Smith, M. ; Vurro, M. ; de Weger, L. A. ; Lommen, Suzanne T. E.

In: Basic and Applied Ecology, 2018, vol. 33, p. 1–13

Both weed science and plant invasion science deal with noxious plants. Yet, they have historically developed as two distinct research areas in Europe, with different target species, approaches and management aims, as well as with diverging institutions and researchers involved. We argue that the strengths of these two disciplines can be highly complementary in implementing management...

Université de Fribourg

Which taxa are alien? Criteria, applications, and uncertainties

Essl, Franz ; Bacher, Sven ; Genovesi, Piero ; Hulme, Philip E. ; Jeschke, Jonathan M. ; Katsanevakis, Stelios ; Kowarik, Ingo ; Kühn, Ingolf ; Pyšek, Petr ; Rabitsch, Wolfgang ; Schindler, Stefan ; Kleunen, Mark van ; Vilà, Montserrat ; Wilson, John R. U. ; Richardson, David M.

In: BioScience, 2018, vol. 68, no. 7, p. 496–509

Human activities such as the transport of species to new regions and modifications of the environment are increasingly reshaping the distribution of biota. Accordingly, developing robust, repeatable, and consistent definitions of alien species that serve scientific and policy purposes has become of prime importance. We provide a set of classification criteria that are widely applicable across...