Veijo Jormalainen

Professor, Ecology and Evolutionary Biology (Department of Biology)
Head of Department (Department of Biology)
+358 29 450 4158
+358 40 721 2682

Natura yliopistonmäki
Office: 335

Areas of expertise
marine biology; plant-herbivore -interactions; behavioral ecology of crustacean mesograzers; community ecology; evolutionary ecology


Human influence on ecosystems is growing with an ever-accelerating speed.
The most important applied aim of ecological research is to understand
biological mechanisms behind and derive predictions on consequences for
biodiversity and ecosystem function. Human influences such as eutrophication
and warming percolate through the network of biotic interactions. Therefore,
knowledge on the structure and function of communities is crucially important.

Natural populations respond to environmental change by either going extinct
locally or adapting locally. Therefore, research on distributional changes need
to be complemented by knowledge on evolutionary potential of the populations,
such as amount of genetic variation, genetic structure, nature of selection and
determinants of gene flow. From this perspective evolutionary ecology manifests
as the principal research field in providing understanding and predictive
potential for global change.

My research focuses on ecology and evolution of intra- and interspecific
interactions in the littoral communities of the Baltic Sea. The Baltic Sea is
an exciting research environment; it is unique owing to the brackish water
nature, archipelagoes and the naturally fragmented littoral zone, and there is
a human population of nearly 90 million living on the catchment and generating an
enormous environmental impact. The unique features reflect to both the
community composition and genetic variation of the species. Although the
monitoring of human impacts has a long history in the Baltic Sea, very little
research on evolutionary potential and evolutionary responses to global changes
has been conducted. There clearly is a both a need and a niche for research
providing understanding on consequences of environmental change in the Baltic
Sea and for planning science based conservation and management actions.


Learning occurs when there is motivation. Therefore the
foremost job of a teacher is to inspire and motivate, spark the desire for
knowledge. On top of that comes the deep and up-to-date knowledge that is the
most valuable property of a university teacher.

Subjective experience boosts digestion of new information,
which highlights the importance of teaching methodologies. In biology,
supportive methods are readily available: field excursions and courses with
hands-on demonstrations, laboratory exercises, research project visits,
computer simulations and personal data collection and analysis.

Lectures are an invaluable method in providing structure,
context and state-of-the-art review for new knowledge. However, they are
insufficient alone. In my own lecturing, I try to include elements supporting
personal learning, e.g. discussion, teamwork and seminars on specific issues
presented by students.

Learning and novel insights are built on facts and past
experience. It is therefore essential to provide the history of ideas,
formulation of hypotheses and their testing and development towards the
conventional wisdom, pointing out gaps and discrepancies. It is pointless to
invent the wheel repeatedly.

Recent courses given:

   Community ecology

   Aquatic ecology

   Ecology and evolution plant-herbivore -interactions

   Macrophyte ecology

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Geographic variation in fitness-related traits of the bladderwrack Fucus vesiculosus along the Baltic Sea-North Sea salinity gradient (2019)
Ecology and Evolution
Barboza F.R., Kotta J., Weinberger F., Jormalainen V., Kraufvelin P., Molis M., Schubert H., Pavia H., Nylund G.M., Kautsky L., Schagerström E., Rickert E., Saha M., Fredriksen S., Martin G., Torn K., Ruuskanen A., Wahl M.
A1 Journal article – refereed)

Integrating experimental and distribution data to predict future species patterns (2019)
Scientific Reports
Kotta J, Vanhatalo J, Janes H, Orav-Kotta H, Rugiu L, Jormalainen V, Bobsien I, Viitasalo M, Virtanen E, Sandman AN, Isaeus M, Leidenberger S, Jonsson PR, Johannesson K
A1 Journal article – refereed)

Living on the edge: Gamete release and subsequent fertilisation in Fucus vesiculosus (Phaeophyceae) are weakened by climate change–forced hyposaline conditions (2019)
Rothäusler Eva, Uebermuth Carolin, Haavisto Fiia, Jormalainen Veijo
A1 Journal article – refereed)

Water-borne defence induction of a rockweed in the wild (2019)
Functional Ecology
Haavisto Fiia, Jormalainen Veijo
A1 Journal article – refereed)

Forecast climate change conditions sustain growth and physiology but hamper reproduction in range-margin populations of a foundation rockweed species (2018)
Marine Environmental Research
Eva Rothäusler, Luca Rugiu, Veijo Jormalainen
A1 Journal article – refereed)

The Baltic Sea as a time machine for the future coastal ocean (2018)
Science Advances
Reusch TBH, Dierking J, Andersson HC, Bonsdorff E, Carstensen J, Casini M, Czajkowski M, Hasler B, Hinsby K, Hyytiäinen K, Johannesson K, Jomaa S, Jormalainen V, Kuosa H, Kurland S, Laikre L, MacKenzie BR, Margonski P, Melzner F, Oesterwind D, Ojaveer H, Refsgaard JC, Sandström A, Schwarz G, Tonderski K, Winder M, Zandersen M, Zandersen M
A2 Review article in a scientific journal)

The evolution of marine herbivores in response to algal secondary metabolites (2018) Chemical Ecology: The Ecological Impacts of Marine Natural Products Sotka Erik E, Jormalainen Veijo, Poore Alistair GB
A3 Book chapter)

Tolerance and potential for adaptation of a Baltic Sea rockweed under predicted climate change conditions (2018)
Marine Environmental Research
Luca Rugiu, Iita Manninen, Eva Rothäusler, Veijo Jormalainen
A1 Journal article – refereed)

Tolerance to climate change of the clonally reproducing endemic Baltic seaweed, Fucus radicans: is phenotypic plasticity enough? (2018)
Journal of Phycology
Luca Rugiu, Iita Manninen, Eva Rothäusler, Veijo Jormalainen
A1 Journal article – refereed)

Variations in tolerance to climate change in a key littoral herbivore (2018)
Marine Biology
Rugiu L., Manninen I., Sjöroos J., Jormalainen V.
A1 Journal article – refereed)

Defensive role of macroalgal phlorotannins: benefits and trade-offs under natural herbivory (2017)
Marine Ecology Progress Series
Haavisto F, Koivikko R, Jormalainen V
A1 Journal article – refereed)

Genetic variation of a foundation rockweed species affects associated communities (2017)
Jormalainen V, Danelli M, Gagnon K, Hillebrand H, Rothausler E, Salminen JP, Sjoroos J
A1 Journal article – refereed)

r- and K-strategies as extremes of the life-history continuum (2017) Biological Oceanography of the Baltic Sea Jormalainen V
A3 Book chapter)

Eutrophication and the challenge of changing biotic interactions (2016) Marine Macrophytes as Foundation Species Rothäusler E, Jormalainen V
A3 Book chapter)

Nutrient enrichment overwhelms top-down control in algal communities around cormorant colonies (2016)
Journal of Experimental Marine Biology and Ecology
Karine Gagnon, Joakim Sjöroos, Juho Yli-Rosti, Marjo Stark, Eva Rothäusler, Veijo Jormalainen
A1 Journal article – refereed)

The invasive mud crab enforces a major shift in a rocky littoral invertebrate community of the Baltic Sea (2016)
Biological Invasions
Veijo Jormalainen, Karine Gagnon, Joakim Sjöroos, Eva Rothäusler
A1 Journal article – refereed)

Abundance and dispersal trajectories of floating Fucus vesiculosus in the Northern Baltic Sea (2015)
Limnology and Oceanography
Eva Rothäusler, Hanna Corell, Veijo Jormalainen
A1 Journal article – refereed)

Cormorant-induced shifts in littoral communities (2015)
Marine Ecology Progress Series
Karine Gagnon, Juho Yli-Rosti, Veijo Jormalainen
A1 Journal article – refereed)

Last updated on 2019-18-09 at 02:24