Université de Fribourg

Quantifying invasion risk: the relationship between establishment probability and founding population size

Duncan, Richard P. ; Blackburn, Tim M. ; Rossinelli, Silvia ; Bacher, Sven

In: Methods in Ecology and Evolution, 2014, vol. 5, no. 11, p. 1255–1263

1. Invasive species usually start out as small colonizing populations that are prone to extinction through demographic stochasticity and Allee effects, leading to a positive relationship between establishment probability and founding population size. However, establishment success also depends on the environment to which species are introduced: for a given species, some locations will be more...

Université de Fribourg

A proposed unified framework for biological invasions

Blackburn, Tim M. ; Pyšek, Petr ; Bacher, Sven ; Carlton, James T. ; Duncan, Richard P. ; Jarošík, Vojtěch ; Wilson, John R.U. ; Richardson, David M.

In: Trends in Ecology & Evolution, 2011, vol. 26, no. 7, p. 333-339

There has been a dramatic growth in research on biological invasions over the past 20 years, but a mature understanding of the field has been hampered because invasion biologists concerned with different taxa and different environments have largely adopted different model frameworks for the invasion process, resulting in a confusing range of concepts, terms and definitions. In this review, we...