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Université de Fribourg

Functional similarity and dissimilarity facilitate alien plant invasiveness along biotic and abiotic gradients in an arid protected area

El-Barougy, Reham F. ; Elgamal, Ibrahim ; Rohr, Rudolf P. ; Probert, Anna F. ; Khedr, Abdel-Hamid A. ; Bacher, Sven

In: Biological Invasions, 2020, vol. 22, no. 6, p. 1997–2016

Two contradictory hypotheses have been put forth to forecast alien invasiveness: being either functionally similar, or dissimilar, to resident natives along environmental gradients. The ‘try-harder’ hypothesis predicts that alien plants will be functionally dissimilar to natives and should thus exhibit exaggerated trait values when compared to natives in respect to resource extraction or...

Université de Fribourg

Do invasive alien plants differ from non-invasives in dominance and nitrogen uptake in response to variation of abiotic and biotic environments under global anthropogenic change?

Liu, Yuan-Yuan ; Sun, Yan ; Müller-Schärer, Heinz ; Yan, Rong ; Zhou, Zhi-Xiang ; Wang, Yong-Jian ; Yu, Fei-Hai

In: Science of The Total Environment, 2019, vol. 672, p. 634–642

Plant invasion is the outcome of complicated interactions of both biotic and abiotic environments (i.e. eutrophication and human-induced propagules) under global anthropogenic change. Here, we want to know why some alien clonal plant species become invasive and others do not in the introduced range with variations of both abiotic and biotic environments under global anthropogenic change.We...

Consortium of Swiss Academic Libraries

Formalization and the Objects of Logic

Brun, Georg

In: Erkenntnis, 2008, vol. 69, no. 1, p. 1-30