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Interactions of "Sarracenia purpurea" and its inquilines : comparing Europe and North America

Zander, Axel ; Bersier, Louis-Félix (Dir.)

Thèse de doctorat : Université de Fribourg, 2016 ; no. 1984.

Sarracenia purpurea is a carnivorous pitcher plant from North America and a model system for aquatic communities. After the pitchers fill up with rainwater, a food web forms in these detritus-fueled ecosystems ranging from bacteria to insect larvae, including the top predator Wyeomyia smithii. Two weeks after opening this food webs consists only of a handful of small and fast dispersing species...

Understanding the structure of interactions and the dynamics of spider populations in agricultural ecosystems

Bruggisser, Odile ; Bersier, Louis-Félix (Dir.)

Thèse de doctorat : Université de Fribourg, 2010 ; Nr. 1671.

Dynamics and phenology of ballooning spiders in an agricultural landscape of Western Switzerland

Blandenier, Gilles ; Bersier, Louis-Félix (Dir.)

Thèse de doctorat : Université de Fribourg, 2014 ; no 1840.

Insect and mollusc communities in wildflower strips : effects of plant diversity and surrounding landscape in an agro-ecosystem

Fabian, Yvonne ; Bersier, Louis-Félix (Dir.)

Thèse de doctorat : Université de Fribourg, 2013 ; no. 1780.

Agricultural land covers approximately 38% of the world's land area, so its contribution to biodiversity is critical for successful conservation in the future. Managed in the right way, agriculture can contribute to the conservation of high-diversity systems, which may provide important ecosystem services such as pollination and biological control. The identification of environmental factors that...