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Université de Fribourg

Seasonal species interactions minimize the impact of species turnover on the likelihood of community persistence

Saavedra, Serguei ; Rohr, Rudolf Philippe ; Fortuna, Miguel ; Selva, Nuria ; Bascompte, Jordi

In: Ecology, 2015, p. -

Many of the observed species interactions embedded in ecological communities are not permanent, but are characterized by temporal changes that are observed along with abiotic and biotic variations. While work has been done describing and quantifying these changes, little is known about their consequences for species coexistence. Here, we investigate the extent to which changes of species...

Université de Fribourg

Determinants of plant establishment success in a multispecies introduction experiment with native and alien species

Kempel, Anne ; Chrobock, Thomas ; Fischer, Markus ; Rohr, Rudolf Philippe ; Kleunen, Mark van

In: Proceedings of the National Academy of Sciences, 2013, vol. 110, no. 31, p. 12727–12732

Determinants of plant establishment and invasion are a key issue in ecology and evolution. Although establishment success varies substantially among species, the importance of species traits and extrinsic factors as determinants of establishment in existing communities has remained difficult to prove in observational studies because they can be confounded and mask each other. Therefore, we...