Marianne Pasanen-Mortensen

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Marianne Pasanen-Mortensen



Zoologiska institutionen: Ekologi
+46 8 16 40 34
+46 8 15 95 22
Visiting address:
Svante Arrheniusväg 18 B
D 515
Postal address:
Stockholm University
Zoologiska institutionen: Ekologi
106 91 Stockholm

Research interests

My research interest generally lie in understanding how population abundance is driven by predation, competition, and resource availability. I am interested in trophic interactions and species interactions, particularly in predator interactions, predator-prey interactions and predator-mediated prey interactions. Land use and climate are important drivers of resource availability, and as these are changing at a global scale, macroecological studies are of importance to understand how this changes ecosystem compositions. I explore direct and indirect interactions at various spatial and temporal scales, making use of network models to understand complex systems. My research focus a lot on mammal predators, such as red fox, Lynx and small mustelids, but also other vertebrates capture my attention. In my current research project "Cascading effects of land use and climate change in farmland communities" I seek to understand what drives predation on ground nesting birds. The project is implemented at my host Tomas Pärt at SLU.

We are looking for a motivated masterstudents for degree projects starting this spring, see below. Welcome to send me an e-mail about yourself if you are interested in any of these or in another project related to my research area.

Master degree project - small mustelids:
There are relatively few studies about small mustelids, maybe because small mustelids can be difficult to survey. However DNA techiques has opened up new oppurtunities. We are looking for a student with interest in molecular ecology (e.g. that has taken the course Molecular Ecology) that will be a part of developing the use of hair traps and DNA analysis to survey weasels and stoats. The masterstudent will use the results from the suvey to study interactions with other species, e.g. predation on northern wheatear nests. Field study in Uppsala (i.e. it can take a lot of time to commute depending on where you live).

Please contact me and explain your interests in research if you are interested in a traineeship. This is mainly related to field work.



Marianne Pasanen-Mortensen, Bodil Elmhagen, Harto Lindén, Roger Bergström, Märtha Wallgren, Ype van der Velde, Sara A. O. Cousins. 2017. The changing contribution of top-down and bottom-up limitation of mesopredators during 220 years of land use and climate change. Journal of Animal Ecology 86: 566-576.

Marianne Pasanen-Mortensen, Bodil Elmhagen. 2015. Land cover effects on mesopredator abundance in the presence and absence of apex predators. Acta Oecologica 67: 40-48.

Bodil Elmhagen, Georgia Destouni, Anders Angerbjörn, Sara Borgström, Emily Boyd, Sara A. O. Cousins, Love Dalen, Johan Ehrlén, Matti Ermold, Peter A. Hambäck, Johanna Hedlund, Kristoffer Hylander, Fernando Jaramillo, Vendela K. Lagerholm, Steve W. Lyon, Helen Moor, Björn Nykvist, Marianne Pasanen-Mortensen, Jan Plue, Carmen Prieto, Ype van der Velde, Regina Lindborg. 2015. Interacting effects of change in climate, human population, land use, and water use on biodiversity and ecosystem services. Ecology & society 20.

Hussein Khalil, Marianne Pasanen Mortensen, Bodil Elmhagen. 2014. The relationship between wolverine and larger predators, lynx and wolf, in a historical ecosystem context. Oecologia 175: 625-637.

Marianne Pasanen-Mortensen, Markku Pyykonen, Bodil Elmhagen. 2013. Where lynx prevail, foxes will fail - limitation of a mesopredator in Eurasia. Global Ecology and Biogeography 22: 868-877.

Other academic

Marianne Pasanen Mortensen. 2014. Anthropogenic impact on predator guilds and ecosystem processes - Apex predator extinctions, land use and climate change. Doctoral thesis. Department of Zoology, Stockholm University.

Marianne Haage, Marianne Pasanen-Mortensen, Vadim Sidorovich, Anders Angerbjörn, Bodil Elmhagen. American mink in north-eastern Europe – abundances, population trends and dynamics in relation to the red fox and otter.

Other (popular science, discussion, etc.)

Bodil Elmhagen, Marianne Pasanen-Mortensen. 2014. Världens lodjursarter. In Lodjuret, pp. 9-29. Atlantis, Stockholm.