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Sven Bacher
University of Fribourg < Faculty of Science < Department of Biology < Ecology & Evolution unit <Bacher group <

Group leader


University of Fribourg
Department of Biology
Unit of Ecology & Evolution
Chemin du Musée 10
CH-1700 Fribourg


+41 (0)26 300 88 22

+41 (0)26 300 96 98

Google Citations

Researcher ID

Current research

I am an applied ecologist with a strong interest in biological control, invasion biology and nature conservation. The central question of my research is when are populations regulated and what are the conditions under which populations escape such regulation. These questions are not only relevant for advancing our understanding of many ecological processes, but also have a huge application potential.  

My group uses a wide array of systems and methods to answer these questions. The majority of our work is done on herbivorous insects and the organisms they interact with (plants, predators, parasitoids), but we also work on invasive mammals and even on plant pathogenic fungi. More details on specific projects can be found on our research webpage

Curriculum vitae

2007-present Group leader, University of Fribourg (CH)
Group leader, University of Bern (CH)
Habilitation, University of Bern (CH)
1996 - 2003
Postdoc, University of Bern (CH)
PhD, Swiss Federal Institute of Technology (ETH) Zurich
MSc, University of Kiel (D)
Project entomologist, CABI Delémont (CH)

Topics for Bachelor-/Master theses

Representative recent publications (full list with pdfs)

Blackburn TM, Essl F, Evans T, Hulme PE, Jeschke JE, Kühn I, Kumschick S, Markova Z, Mrugala A, Nentwig W, Pergl J, Pysek P, Rabitsch W, Ricciardi A, Richardson DM, Sendek A, Vila M, Wilson JRU, Winter M, Genovesi P & Bacher S (2014) A Unified Classification of Alien Species Based on the Magnitude of their Environmental Impacts. PLoS Biology 12(5): e1001850. doi:10.1371/journal.pbio.1001850

Jeschke JE, Bacher S, Blackburn TM, Dick JTA, Essl F, Evans T, Gaertner M, Hulme PE, Kühn I, Mrugala A, Pergl J, Pysek P, Rabitsch W, Ricciardi A, Richardson DM, Sendek A, Vila M, Winter M & Kumschick S (2014) Defining the impact of non-native species. Conservation Biology, online early. doi: 10.1111/cobi.12299

Bacon SJ, Aebi A, Calanca P, Bacher S (2014) Quarantine arthropod invasions in Europe: the role of climate, hosts and propagule pressure. Diversity & Distributions, 20, 84-94. doi: 10.1111/ddi.12149

Access the recommendation on F1000Prime

Bacon SJ, Bacher S, Aebi A (2012) Gaps in border controls are related to quarantine alien insect invasions in Europe. PLoSOne 7(10), e47689 . doi: 10.1371/journal.pone.0047689

Leung B, Roura-Pascual N, Bacher S, Heikkilä J, Brotons L, Burgman MA, Dehnen-Schmutz K, Essl F, Hulme PE, Richardson DM, Sol D, Vilà M (2012) TEASIng apart alien species risk assessments: a framework for best practices. Ecology Letters 15, 1475-1493. doi: 10.1111/ele.12003

Kumschick S, Bacher S, Blackburn T (2012) What determines the impact of alien birds and mammals in Europe? Biological Invasions, online early. doi: 10.1007/s10530-012-0326-6 

Pluess T, Cannon R, Jarošík V, Pergl J, Pyšek P, Bacher S, (2012) When are eradication campaigns successful? A test of common assumptions. Biological Invasions, 14:1365–1378 doi: 10.1007/s10530-011-0160-2

Bacher S (2012) Still not enough taxonomists. Trends in Ecology and Evolution, 27: 65-66. doi: 10.1016/j.tree.2011.11.003

Blackburn TM, Pyšek P, Bacher S, Carlton JT, Duncan RP, Jarošík V, Wilson JRU and Richardson DM (2011) A proposed unified framework for biological invasions. Trends in Ecology and Evolution 26: 333–339. doi: 10.1016/j.tree.2011.03.023.

Nentwig W., Bacher S., Brandl R. (2011) Ökologie kompakt, 3. Auflage. Elsevier.

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