Community ecology; Biodiversity; Assembly rules; Food-web ecology; Ecological networks; Reciprocal transplant experiments; Pitcher plants; Sown wildflower strips; Community stability
Zander Axel, Bersier Louis-Felix, Gray Sarah M. (2017), Effects of temperature variability on community structure in a natural microbial food web, in GLOBAL CHANGE BIOLOGY
, 23(1), 56-67.
Rohr Rudolf P, Naisbit Russell E, Mazza Christian, Bersier Louis-Félix (2016), Matching-centrality decomposition and the forecasting of new links in networks., in Proceedings. Biological sciences
, 283(1824), 20152702.
Parain Elodie C, Gravel Dominique, Rohr Rudolf P, Bersier Louis-Félix, Gray Sarah M (2016), Mismatch in microbial food webs: predators but not prey perform better in their local biotic and abiotic conditions., in Ecology and evolution
, 6(14), 4885-97.
Rohr Rudolf P., Saavedra Serguei, Peralta Guadalupe, Frost Carol M., Bersier Louis-Felix, Bascompte Jordi, Tylianakis Jason M. (2016), Persist or Produce: A Community Trade-Off Tuned by Species Evenness, in AMERICAN NATURALIST
, 188(4), 411-422.
Dougoud Michael, Vinckenbosch Laura, Rohr Rudolf P., Bersier Louis-Félix, Mazza Christian (2016), The feasibility of equilibria in large ecosystems: a primary but neglected concept in the complexity-stability debate
, Cornell University Library, Ithaca, NY.
Arditi Roger, Bersier Louis-Felix, Rohr Rudolf P. (2016), The perfect mixing paradox and the logistic equation: Verhulst vs. Lotka, in ECOSPHERE
, 7(11), e01599.
Zander Axel, Gravel Dominique, Bersier Louis-Felix, Gray Sarah M. (2016), Top predators affect the composition of naive protist communities, but only in their early-successional stage, in OECOLOGIA
, 180(2), 519-528.
Blandenier Gilles, Bruggisser Odile T., Bersier Louis-Felix (2014), Do spiders respond to global change? A study on the phenology of ballooning spiders in Switzerland, in ECOSCIENCE
, 21(1), 79-95.
Sandau Nadine, Rohr Rudolf P., Naisbit Russell E., Fabian Yvonne, Bruggisser Odile T., Kehrli Patrik, Aebi Alexandre, Bersier Louis-Felix (2014), Including community composition in biodiversity-productivity models, in METHODS IN ECOLOGY AND EVOLUTION
, 5(8), 815-823.
Fabian Yvonne, Sandau Nadine, Bruggisser Odile T., Aebi Alexandre, Kehrli Patrik, Rohr Rudolf P., Naisbit Russell E., Bersier Louis-Felix (2014), Plant diversity in a nutshell: testing for small-scale effects on trap nesting wild bees and wasps, in ECOSPHERE
, 5(2), article 18.
Sokhn Nayla, Baltensperger Richard, Bersier Louis-Félix, Ultes-Nitsche Ulrich, Hennebert Jean (2014), Structure Comparison of Binary and Weighted Niche-Overlap Graphs, in Contucci Pierluigi (ed.), Springer, Berlin, 119-127.
Sokhn Nayla, Baltensperger Richard, Bersier Louis-Félix, Hennebert Jean, Ultes-Nitsche Ulrich (2013), Identification of chordless cycles in ecological networks, in Glass Kristin (ed.), Springer, Cham, 316-324.
Sokhn Nayla, Baltensperger Richard, Bersier Louis-Félix, Ultes-Nitsche Ulrich, Hennebert Jean (2013), Structural Network Properties of Niche-Overlap Graphs, in Chbeir Richard (ed.), IEEE Computer Society, New York, NY, 478-482.
Fabian Yvonne, Sandau Nadine, Bruggisser Odile T, Aebi Alex, Kehrli Patrik, Rohr Rudolf P, Naisbit Russell E, Bersier Louis-Félix (2013), The importance of landscape and spatial structure for hymenopteran-based food webs in an agro-ecosystem., in The Journal of animal ecology
, 82(6), 1203-14.
Fabian Yvonne, Sandau Nadine, Bruggisser Odile T, Kehrli Patrik, Aebi Alexandre, Rohr Rudolf P, Naisbit Russell E, Bersier Louis-Félix (2012), Diversity protects plant communities against generalist molluscan herbivores., in Ecology and evolution
, 2(10), 2460-73.
Mouquet Nicolas, Devictor Vincent, Meynard Christine N, Munoz Francois, Bersier Louis-Félix, Chave Jérôme, Couteron Pierre, Dalecky Ambroise, Fontaine Colin, Gravel Dominique, Hardy Olivier J, Jabot Franck, Lavergne Sébastien, Leibold Mathew, Mouillot David, Münkemüller Tamara, Pavoine Sandrine, Prinzing Andreas, Rodrigues Ana S L, Rohr Rudolf P, Thébault Elisa, Thuiller Wilfried (2012), Ecophylogenetics: advances and perspectives., in Biological reviews of the Cambridge Philosophical Society
, 87(4), 769-85.
Rohr Rudolf P., Naisbit Russell E., Mazza Christian, Bersier Louis-Félix, Statistical approaches for inferring and predicting food-web architecture, in Moore John C. (ed.), Cambridge University Press, Cambridge, UK.
Rossberg Axel G., Caskenette Amanda L., Bersier Louis-Félix, Structural instability of food webs and food-web models and its implications for management, in Moore John C. (ed.), Cambridge University Press, Cambridge, UK.
Sandau Nadine, Fabian Yvonne, Bruggisser Odile T., Rohr Rudolf P., Naisbit Russell E., Kehrli Patrik, Aebi Alexandre, Bersier Louis-Félix, The relative contributions of species richness and species composition to ecosystem functioning, in Oikos
Understanding how communities are organized in time and in space is a crucial need for science and society given the current biodiversity crisis and global changes. The study of the dynamics of ecological networks has been investigated for many years by ecologists; incorporation of the spatial aspect for communities - the metacommunity approach - is much more recent. Importantly, theoretical research on both themes abounds, while empirical and experimental studies are much scarcer, especially concerning the dynamics of ecological networks. The present project is aimed at testing current theories on metacommunities and dynamical stability of communities in two systems. The first is a large-scale metacommunity of 12 experimental wildflower strips in agroecosystems; the second consists of small-scale food-webs found in the pitcher plant Sarracenia purpurea. Notably, the latter system allows exploration of question of “local adaptation” at the food-web level, a key aspect to understand the evolution of communities subjected to anthropogenic changes.In an earlier project, we installed 12 experimental wildflower strips in an agricultural landscape where plant species richness was manipulated. We have applied an extensive sampling protocol from automn 2007 to 2009, involving plants, arthropods and vertebrates, and several studies on specific systems are close to completion (e.g., on host-parasitoid or plant-pollinator webs). The first part of the present proposal will build on this data. The 12 local food-webs will be assembled and they will be analysed with respect to the local environment, the neighbouring landscape and their spatial dependence. We will test different hypotheses about food-webs organized at the local and at the landscape level. The second part of the project involves the study of food-webs in the water-filled leaves of S. purpurea, which was introduced in Switzerland about 100 y ago. This system allows replicated experiments to be performed on whole communities. We will tackle two main themes. The first concerns reciprocal transplant experiments to study local adaptation at the food-web level. The second will explore the dynamics of these systems under natural and experimental conditions. The experiment will consist of manipulating the presence of different functional groups, notably the so-called fast (bacterial) and slow (algal) channels, which have been hypothesized to account for much of the stability property of food-webs.The present project is interdisciplinary, as the skills of ecologists, taxonomists, molecular biologists and mathematicians are needed. It should yield results of great scientific value, but it will also be important for applied conservation. The project on wildflower strips has already provided published accounts of the ecological value of wildflower strips. The results of the “meta food-web” research will give further insights for better practices to improve the global functioning of ecological compensation areas. The Sarracenia part of the project should provide cutting-edge results for community dynamics and metacommunity theory, with the local adaptation experiment being of great interest for our understanding of potential effects of climate change on natural systems.