Roland Jansson

Contact Information

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Senior lecturer


Works at:

Ecology and Environmental Sciences


Umeå universitet
SE-901 87 Umeå

Visiting Address:

Uminova Science Park, plan 3, Tvistevägen 48, Umeå


+46 90 786 95 73


roland.jansson@umu.seEmail 1

roland.jansson@emg.umu.seEmail 2


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My primary research interest is to understand why there are more species in some places than others, going from small-scale differences in diversity in riparian zones to why biodiversity is higher close to the equator than close to the poles in most clades. In many cases the absence of species is as important as their presence: Many patterns are driven by failure of species to colonize a specific place, or a result of historical factors (the dynamics of speciation and extinction in the past).

The role of climatic and geographic factors for diversification

I use phylogenies, models of past climates and data on species geographic distributions to understand how speciation and extinction dynamics has varied among regions depending on the history of climatic variability.

Evolutionary consequences of climate change 

Climate change has been a recurrent feature of Earth’s entire history, and has selected for certain traits, such as high vagility, and filtered out other traits, such as high specialisation and small geographic ranges. I’m interested in how various biological phenomena have been affected by climate change in the past. 

Riparian vegetation along streams and rivers

At the ecosystem level, I mostly work with riparian zones along stream and rivers, and the importance of landscape ecological processes for riparian plant species composition in riparian. I also study how riverine ecosystems have been exploited by for example hydropower, and how ecosystems respond to different measures of restoration and mitigation. 


I’m course co-ordinator for an advanced level course in ecosystem management (15 ECTS-credits), examiner for candidate theses in biology, and teach plant ecology on various courses. 


Editor for the ecology section of Encyclopedia of Life Sciences (Wiley)

My profile at Google Scholar Citations.

My profile at ResearchGate.

My publication profile in ResearcherID.




Year sorteringsordning


Fuentes-Hurtado, Marcelo
Hof, Anouschka R.
Jansson, Roland

Paleodistribution modeling suggests glacial refugia in Scandinavia and out-of-Tibet range expansion of the Arctic fox
Ecology and Evolution, 6(1): 170-180



Hof, Anouschka R
Jansson, Roland
Nilsson, Christer

Future of biodiversity in the Barents Region



Kuglerová, Lenka
Jansson, Roland
Sponseller, Ryan; et al.

Local and regional processes determine plant species richness in a river-network metacommunity
Ecology, 96(2): 381-391



Dietrich, Anna L.
Nilsson, Christer
Jansson, Roland

Restoration effects on germination and survival of plants in the riparian zone: a phytometer study
Plant Ecology, 216(3): 465-477



Jansson, Roland
Nilsson, Christer
Keskitalo, E Carina H; et al.

Future changes in the supply of goods and services from natural ecosystems: prospects for the European north
Ecology & society, 20(3)



Dietrich, Anna
Lind, Lovisa
Nilsson, Christer; et al.

The Use of Phytometers for Evaluating Restoration Effects on Riparian Soil Fertility
Journal of Environmental Quality, 43(6): 1916-1925



Dynesius, Mats
Jansson, Roland

Persistence of within-species lineages: a neglected control of speciation rates
Evolution, 68(4): 923-934



Catford, Jane A.
Jansson, Roland

Drowned, buried and carried away: effects of plant traits on the distribution of native and alien species in riparian ecosystems
New Phytologist, 204(1): 19-36



Kuglerova, Lenka
Jansson, Roland
Ågren, Anneli; et al.

Groundwater discharge creates hotspots of riparian plant species richness in a boreal forest stream network
Ecology, 95(3): 715-725



Kuglerová, Lenka
Ågren, Anneli
Jansson, Roland; et al.

Towards optimizing riparian buffer zones: Ecological and biogeochemical implications for forest management
Forest Ecology and Management, 334: 74-84



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