The Alpine region is subject to exacerbated climate changes. Besides, alpine inland waters have long been under intense human exploitation, leading to disturbances in nutrient loadings, global or local pollutions, fishing activities and hydrological regulation for hydropower. Lakes in and around the Alps have been evolving in a context of continuous and intensifying environmental changes over the last 150 years, to which they are responding through non-linear and somewhat unpredictable trajectories.
Our team studies how lakes in and around the Alps have been responding to environmental changes. Our focus is on both biogeochemistry and ecology, covering different space and time perspectives.
We combine paleo-ecological reconstructions from sediment archives, high- and low frequency monitoring data, laboratory experiments and modeling to mechanistically unravel alpines lakes vulnerability and responses in a context of global changes.
I graduated in Cell and Molecular Biology from the Ecole Nationale Supérieure de Lyon and in Numerical Ecology at the university Lyon 1 in 2001. I then did my PhD at the Alpine Centre for Research on Lake Food webs (CARRTEL, French National Institute for Agronomical Research, France), where I started to work on carbon fluxes in lake food webs using stable isotope methods. in 2004, I moved to the University of Victoria, BC (Canada) for a post-doc in A. Mazumder’s team to further my knowledge on food webs and trophic biomarkers. I got a junior research position at the UMR CARRTEL in 2006 and, from 2007, developed a large research program on Climate Change impacts on large, human-impacted lakes (IPER-RETRO) using paleo-ecological methods combined to statistical modelling. As a senior researcher, I extended my research to high-altitude lakes, adding high-frequency automated monitoring to my paleo- and field sampling toolbox. In January 2017, I got appointed Associate Professor in the University of Lausanne to build a research group at the Institute of Earth Surface Dynamics.
NEW Masset T, Frossard V, Perga ME, Cottin N, Piot C, Cachera S, Naffrechoux E (2019) Trophic position and individual feeding habits as drivers of differential PCB bioaccumulation in fish populations. Science of The Total Environment, 674, 472-481.
Four, B., Thomas, M., Danger, M., Angeli, N., Perga M.E., Banas, D (2019). Using stable isotope approach to quantity pond dam impacts on isotopic niches and assimilation of resources by invertebrates in temporary streams: a case study. Hydrobiologia https://link.springer.com/article/10.1007%2Fs10750-019-3920-0
Majdi, N., Hette-Tronquart, N. … ME Perga (in press) There’s no harm in having too much: A comprehensive toolbox of methods in trophic ecology. Food Webs.
Taranu, Z. , Carpenter, S., Frossard, V., Jenny, JP, Thomas, Z., Vermaire, J. and ME Perga (in press) Can we detect ecosystem critical transitions and signals of changing resilience from paleo-ecological records? Ecosphere (in press)
Thomas C. ,Frossard V.,Perga M-E, Tofield-Pasche N, Hofmann H. ,Dubois N., Belkina N. ,Zobkova M. , Robert S.,Lyautey E. (In press) Lateral variations and vertical structure of the microbial methane cycle in the sediment of Lake Onego (Russia). INLAND WATERS doi.org/10.1080/20442041.2018.1500227
Perga M-E, Bruel R, Rodriguez L, Guénand Y, Bouffard D (2018) Storm impacts on alpine lakes: Antecedent weather conditions matter more than the event intensity. Global Change Biology, 24, 5004-5016.
Parasitic versus nutritional regulation of natural fish populations. Frantz, A. Perga M.E., Guillard,J. 2018 (in press) Ecology and Evolution. DOI: 10.1002/ece3.4391
Large and deep perialpine lakes: a paleolimnological perspective for the advance of ecosystem science Tolotti, M., Dubois, N., Milan, M. , Perga ME et al. Hydrobiologia (2018). https://doi.org/10.1007/s10750-018-3677-x