Affiner les résultats

Collection spécifique

Langue

Université de Fribourg

Biodiversity effects on grape quality depend on variety and management intensity

Steiner, Magdalena ; Grace, James B. ; Bacher, Sven

In: Journal of Applied Ecology, 2021, p. 1-13

1. Interactions between plants can be beneficial, detrimental or neutral. In agricultural systems, competition between crop and spontaneous vegetation is a major concern. We evaluated the relative support for three non-exclusive ecological hypotheses about interactions between crop and spontaneous plants based on competition, complementarity or facilitation. 2. The study was conducted in...

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

Selective extinction against redundant species buffers functional diversity

Pimiento, Catalina ; Bacon, Christine D. ; Silvestro, Daniele ; Hendy, Austin ; Jaramillo, Carlos ; Zizka, Alexander ; Meyer, Xavier ; Antonelli, Alexandre

In: Proceedings of the Royal Society B: Biological Sciences, 2020, vol. 287, no. 2020-1931, p. 20201162

The extinction of species can destabilize ecological processes. A way to assess the ecological consequences of species loss is by examining changes in functional diversity. The preservation of functional diversity depends on the range of ecological roles performed by species, or functional richness, and the number of species per role, or functional redundancy. However, current knowledge is...

Université de Fribourg

Scientists’ warning on invasive alien species

Pyšek, Petr ; Hulme, Philip E. ; Simberloff, Dan ; Bacher, Sven ; Blackburn, Tim M. ; Carlton, James T. ; Dawson, Wayne ; Essl, Franz ; Foxcroft, Llewellyn C. ; Genovesi, Piero ; Jeschke, Jonathan M. ; Kühn, Ingolf ; Liebhold, Andrew M. ; Mandrak, Nicholas E. ; Meyerson, Laura A. ; Pauchard, Aníbal ; Pergl, Jan ; Roy, Helen E. ; Seebens, Hanno ; Kleunen, Mark ; Vilà, Montserrat ; Wingfield, Michael J. ; Richardson, David M.

In: Biological Reviews, 2020, p. brv.12627

Biological invasions are a global consequence of an increasingly connected world and the rise in human population size. The numbers of invasive alien species – the subset of alien species that spread widely in areas where they are not native, affecting the environment or human livelihoods – are increasing. Synergies with other global changes are exacerbating current invasions and...

Université de Fribourg

Richness, phylogenetic diversity, and abundance all have positive effects on invader performance in an arid ecosystem

El‐Barougy, Reham ; Mac, Ivor, J. Scott ; Arnillas, Carlos A. ; Nada, Reham M. ; Khedr, Abdel‐Hamid A. ; Cadotte, Marc W.

In: Ecosphere, 2020, vol. 11, no. 2, p. -

In search of generalities in biological invasions, it is sometimes forgotten that invader success can be a function of both the diversity of the invaded community and the relatedness of the invader relative to community residents. Both qualities are likely to be especially important in stressful ecosystems, and identifying the species and community attributes that influence biological ...