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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

Improving the Environmental Impact Classification for Alien Taxa (EICAT): a summary of revisions to the framework and guidelines

Volery, Lara ; Blackburn, Tim M. ; Bertolino, Sandro ; Evans, Thomas ; Genovesi, Piero ; Kumschick, Sabrina ; Roy, Helen E. ; Smith, Kevin G. ; Bacher, Sven

In: NeoBiota, 2020, vol. 62, p. 547–567

The Environmental Impact Classification for Alien Taxa (EICAT) classifies the impacts caused by alien species in their introduced range in standardised terms across taxa and recipient environments. Impacts are classified into one of five levels of severity, from Minimal Concern to Massive, via one of 12 impact mechanisms. Here, we explain revisions based on an IUCN-wide consultation process...

Université de Fribourg

The importance of assessing positive and beneficial impacts of alien species

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

In: NeoBiota, 2020, vol. 62, p. 525–545

Extensive literature is available on the diversity and magnitude of impacts that alien species cause on recipient systems. Alien species may decrease or increase attributes of ecosystems (e.g. total biomass or species diversity), thus causing negative and positive environmental impacts. Alien species may also negatively or positively impact attributes linked to local human communities (e.g....

Université de Fribourg

Frameworks used in invasion science: progress and prospects

Wilson, John R.U. ; Bacher, Sven ; Daehler, Curtis C. ; Groom, Quentin J. ; Kumschick, Sabrina ; Lockwood, Julie L. ; Robinson, Tamara B. ; Zengeya, Tsungai A. ; Richardson, David M.

In: NeoBiota, 2020, vol. 62, p. 1–30

Our understanding and management of biological invasions relies on our ability to classify and conceptualise the phenomenon. This need has stimulated the development of a plethora of frameworks, ranging in nature from conceptual to applied. However, most of these frameworks have not been widely tested and their general applicability is unknown. In order to critically evaluate frameworks in...

Université de Fribourg

Appropriate uses of EICAT protocol, data and classifications

Kumschick, Sabrina ; Bacher, Sven ; Bertolino, Sandro ; Blackburn, Tim M. ; Evans, Thomas ; Roy, Helen E. ; Smith, Kevin

In: NeoBiota, 2020, vol. 62, p. 193–212

The Environmental Impact Classification for Alien Taxa (EICAT) can be used to classify alien taxa according to the magnitude and type of their environmental impacts. The EICAT protocol, classifications of alien taxa using the protocol (EICAT classification) and the data underpinning classifications (EICAT data) are increasingly used by scientists and practitioners such as governments, NGOs...