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Teaching at the University of
Jyväskylä: OPLAA!-project (in Finnish)
Department of Biological and Environmental Science, P.O. Box 35 (YAC),
FIN-40014 University of Jyväskylä, Finland
Tel: +358-14-260 2303 | Fax:
+358-14-260 2321 | Email:
completed my MSc degree in 1986 and PhD degree in 1993, both in Ecology and
Environmental Management at the University of Jyväskylä. My PhD thesis
consisted of microcosm experiments on the role of earthworms in nutrient
cycling of boreal coniferous forest soils. After that I focused on the
effects of different kind of harmful substances on soil animals (especially
earthworms, enchytraeids and collembolans). Later on, I also made
experiments to study the importance of other kinds of disturbances to soil
decomposer community. One basic aim of my studies has been to link different
levels of biological hierarchies; i.e. to explain phenomena taking place at
the community and ecosystem levels with responses at the lower ones. At the
moment I am working as senior lecturer in Biology at the Department of
Biological and Environmental Science, University of Jyväskylä. I give
courses on general and invertebrate biology, ecology and ecotoxicology. My
research still consists mainly of laboratory and field experiments in soil
animal ecology and ecotoxicology.
Life-history, biochemical, morphological and genetic
responses of earthworms and enchytraeids to harmful substances
(especially heavy metals); including the role of exposure history of
Responses of decomposer communities to soil
contamination: changes in community structure and function.
in forest regeneration: responses of soil decomposer community to different
forest regeneration practices.
Effects of different forestry practices on soil
decomposer community (1996-).
ultimate goal of this project is to find out the causal relationships
between changed environmental conditions due to forestry practices
(different harvesting methods and site preparation) and changes in soil
decomposer community. Background aim is also to produce knowledge for
forestry decision makers about ecological consequences of different
forestry options. Forest stand scale experiment has been performed with
many other researches from several universities and research institutions.
Biological and economic parameters have been measured from the very same
experimental one-hectare study plots. In small scale experiments the
effects of slash addition, exclusion of mycorrhizal connections
(trenching) and exposure of mineral soil (sod cutting) on soil decomposers
have been studied in otherwise untouched forest stand. From 2005 onwards,
impacts of stump removal on decomposer community is under focus. Collaborators in
this project are Dr. Anne Siira-Pietikäinen, and microbiologist Dr. Hannu
Fritze in Finnish Forest Research Institute.
strategies and genetic variation in oligochaete worms differently exposed
to heavy metals (2000- ).
this project the survival strategies of decomposer animal species with
little genetic variation due to their asexual or parthenogenetic life mode
are studied. An asexual enchytraeid worm Cognettia sphagnetorum and
a parthenogenetic earthworm Dendrobaena octaedra are used as model
organisms. Populations with
different heavy metal exposure history have been taken for measurements
and experiments. Life-history characteristics, behaviour, ecological
performance and genetic differences between the populations are under the
focus. This study is conducted with close cooperation with Dr. Emily
Use of earthworms in soil quality assessment: responses
of different species to heavy metal exposure (2002- ).
The aim of this
research is to find out how long-term heavy metal exposure affects
biological, ecological and physiological characteristics of earthworms,
and further, how this affects soil decomposition activity and fertility.
Populations under study are taken from the areas contaminated with heavy
metals from human activity (e.g. metal smelters). In these cases,
earthworms have been exposed simultaneously to several metals. After field
surveys, populations from species with different biology, ecology, and
exposure history are taken for laboratory experiments. Especially
observations at individual and population levels are connected to
ecosystem level. We also aim to estimate the usefulness of earthworms for
assessing the condition of the environment and the risk caused by heavy
metals by combining field surveys, laboratory exposure tests, and
biomarker measurements. Biomarkers measured are e.g. metallothioneins,
cytochrome P4501A monooxygenase enzyme induction and glutathione-S-transferase
activity. Ph.D. student in this project is Tuomas Lukkari. Collaborator in
ecotoxicological experimentation is Dr. Jack Faber from the
Forestry and Nature Research, Alterra, Wageningen, The Netherlands, and
in chemical analyses Dr. Ari Väisänen, from the Department of Chemistry,
University of Jyväskylä.
J. & Huhta, V. 1986: Capacity of various organic residues to support
adeguate earthworm biomass for vermicomposting. – Biology and Fertility
of Soils 2: 23-27.
J. & Huhta, V. 1987: Comparison of composts produced from identical
wastes by "vermistabilization" and conventional composting. -
Pedobiologia 30: 137-144.
M.B., Haimi, J. & Huhta, V. 1988: Two earthworm taxa (Oligochaeta,
Lumbricidae) new to Finland. - Memoranda Soc. Fauna Flora Fennica 64:
Setälä, H. & Haimi, J. 1988: Leaching of N and C from birch leaf
litter and raw humus with special emphasis on the influence of soil
fauna. - Soil Biology & Biochemistry 20: 875-878.
H., Haimi, J. & Huhta, V. 1988: A microcosm study on the
respiration and weight loss in birch litter and raw humus as influenced
by soil fauna. - Biology and Fertility of Soils 5: 282-287.
J. 1990: Growth and reproduction of the compost-living earthworms
Eisenia andrei and E. fetida. - Rev. Ecol. Biol. Sol 27:
J. & Huhta, V. 1990: Effects of earthworms on decomposition
processes in raw humus forest soil: A microcosm study. - Biology and
Fertility of Soils 10: 178-183.
J., Palm, H., Hakala, H., Haimi, J., Huhta, V. & Salminen, J.
1990: Polychlorinated phenols and their metabolites in soil and
earthworms of sawmill environment.- Chemosphere 20 (6): 609-623.
J. & Boucelham, M. 1991: Influence of a litter feeding earthworm,
Lumbricus rubellus, on soil processes in a simulated coniferous
forest floor. - Pedobiologia 35: 247-256.
Knuutinen, J., Haimi, J., Salminen, J. & Huhta, V. 1991:
Methylation products of chlorophenols, catechols and hydroquinones in
soil and earthworms of sawmill environments. - Chemosphere 23 (3):
J. & Einbork, M. 1992: Effects of endogeic earthworms on soil
processes and plant growth in coniferous forest soil. - Biology and
Fertility of Soils 13: 6-10.
J., Huhta, V. & Boucelham, M. 1992: Growth increase of birch
seedlings under the influence of earthworms - a laboratory study. - Soil
Biology & Biochemistry 24: 1525-1528.
J., Salminen, J. Huhta, V., Knuutinen, J. & Palm, H. 1992:
Bioaccumulation of organochlorine compounds in earthworms. - Soil
Biology & Biochemistry 24: 1699-1703.
J., Salminen, J., Huhta, V., Knuutinen, J. & Palm H. 1993:
Chloroanisoles in soils and earthworms. - The Science of the Total
Environment, Supplement 1993: 439-448.
J. 1995: Effect of introduced earthworm Aporrectodea velox on
nutrient dynamics of forest soil. - Acta Zool. Fennica 196: 67-70.
J., Haimi, J., Sironen, A. & Ahtiainen, J. 1995: Effects of PCP
and biotic interactions on nematodes and decomposition processes in
humus soil. - Ecotoxicology and Environmental Safety 31: 250-257.
J. & Siira-Pietikäinen A. 1996: Decomposer animal communities in
forest soil along heavy metal pollution gradient. - Fresenius' Journal
of Analytical Chemistry 354: 672-675.
J. & Haimi, J. 1996: Effects of pentachlorophenol in forest soil:
A microcosm experiment for testing ecosystem responses to anthropogenic
stress. – Biology and Fertility of Soils 23: 182-188.
J., Eriksson, I. & Haimi, J. 1996: Effects of terbuthylazine on
soil fauna and decomposition processes. - Ecotoxicology and
Environmental Safety 34: 184-189.
J. & Haimi, J. 1997: Effects of pentachlorophenol on soil
organisms and decomposition in forest soil. - Journal of Applied Ecology
J., Setälä, H. & Haimi, J. 1997: Regulation of decomposer
community structure and decomposition in herbicide stressed humus soil.
- Applied Soil Ecology 6: 265-274.
J. & Haimi, J. 1998: Responses of the soil decomposer community
and decomposition processes to the combined stress of pentachlorophenol
and acid precipitation. - Applied Soil Ecology 9: 475-481.
Martikainen, E., Haimi, J. & Ahtiainen, J. 1998: Effects of
dimethoate and benomyl on soil organisms and soil processes - a
microcosm study - Applied Soil Ecology 9: 381-387.
J. & Paavola, S. 1998: Responses of two earthworm populations with
different exposure histories to chlorophenolic contamination. -
Environmental Toxicology and Chemistry 17: 1114-1117.
P., Haimi, J., Hovi, M. & Rätti, O. 1998: Properties of food
loads delivered to nestlings in the pied flycatcher: effects of clutch
size manipulation, year, and sex. - Oecologia 115: 579-585.
J. & Haimi, J. 1999: Horizontal distribution of copper, nickel
and enchytraeid worms in polluted soil. - Environmental Pollution 104:
J., Fritze, H. & Moilanen, P. 2000: Responses of soil decomposer
animals to wood-ash fertilization and burning in a coniferous forest
stand. - Forest Ecology and Management 129: 53-61.
J. 2000: Decomposer animals and bioremediation of soils. -
Environmental Pollution 107: 233-238.
H., Perkiömäki, J., Saarela, U., Katainen R., Tikka, P., Yrjälä K.,
Karp, M, Haimi, J. & Romantschuk, M. 2000: Effect of Cd-containing
wood ash on the microflora of coniferous forest humus. – FEMS
Microbiology Ecology 32: 43-51.
H., Haimi, J. & Siira-Pietikäinen, A. 2000: Sensitivity of soil
processes in northern forest soils: are stand management practices a
threat? – Forest Ecology and Management 133: 5-11.
Siira-Pietikäinen, A., Pietikäinen, J., Fritze, H. & Haimi, J.
2001: Short-term responses of soil decomposer communities to forest
management: clear felling versus alternative harvesting methods. -
Canadian Journal of Forest Research. 31: 88-99.
J. & Haimi, J. 2001: The asexual enchytraeid worm Cognettia
sphagnetorum (Oligochaeta) has increased Cu resistance in polluted
soil. - Environmental Pollution 113: 221-224.
Liiri, M., Setälä H., Haimi, J.,
Pennanen T. & Fritze, H. 2001: Influence of Cognettia
sphagnetorum (Enchytraeidae) on birch growth and microbial activity,
composition and biomass in soil with or without wood ash. – Biology and
Fertility of Soils 34: 185-195.
Siira-Pietikäinen, A., Haimi, J., Kanninen, A., Pietikäinen, J. &
Fritze, H. 2001: Responses of decomposer community to root-isolation and
addition of slash. Soil Biology & Biochemistry 33: 1993-2004.
J. & Haimi, J. 2001: Life history and spatial distribution of the
enchytraeid worm Cognettia sphagnetorum (Oligochaeta) in
metal-polluted soil: below-ground sink-source population dynamics? -
Environmental Toxicology and Chemistry 20: 1993-1999.
Setälä H., Haimi, J., Pennanen T. & Fritze,
H. 2002: Relationship between soil microarthropod species diversity and
plant growth does not change when the system is disturbed. – Oikos 96:
J. & Mätäsniemi, L. 2002: Soil decomposer animal community in
heavy-metal contaminated coniferous forest. - European Journal of Soil
Biology 38: 131-136.
Setälä H., Haimi, J., Pennanen T. & Fritze,
H. 2002: Soil processes are not influenced by the functional complexity
of soil decomposer food webs under disturbance. - Soil Biology &
Biochemistry 34: 1009-1020.
J., Liiri, M. & Haimi, J. 2002: Responses of microbial activity
and decomposer organisms to contamination in microcosms containing
coniferous forest soil. - Ecotoxicology and Environmental Safety 53:
Haimi, J. & Setälä, H. 2002: Community composition of soil
microarthropods of acid forest soils as affected by wood ash
application. - Pedobiologia 46: 108-124.
Siira-Pietikäinen, A., Haimi, J. & Siitonen, J. 2003:
of soil macroarthropod community to clear felling and alternative forest
regeneration methods. - Forest Ecology and Management 172: 339-353.
Haimi, J. & Siira-Pietikäinen, A. 2003: Activity and
role of the enchytraeid worm Cognettia sphagnetorum (Vejd.) (Oligochaeta:
Enchytraeidae) in organic and mineral forest soil. – Pedobiologia 47:
Siira-Pietikäinen, A., Haimi, J. & Fritze, H. 2003: Organisms,
decomposition, and growth of pine seedlings in boreal forest soil
affected by sod cutting and trenching. – Biology and Fertility of Soils.
Rantalainen, M.-L., Haimi, J. & Setälä, H. 2004: Testing the
usefulness of habitat corridors in mitigating the negative effects of
fragmentation: soil faunal community as a model system. – Applied Soil
Ecology 25: 267-274.
Rantalainen, M.-L., Fritze, H., Haimi, J., Kiikkilä, O., Pennanen,
T. & Setälä, H. 2004: Do enchytraeid worms and habitat corridors
facilitate the colonisation of habitat patches by soil microbes? –
Biology and Fertility of Soils 39: 200-208.
Lukkari, T., Taavitsainen,
M., Väisänen, A. & Haimi, J. 2004: Effects of heavy metals on
earthworms along contamination gradients in organic rich soils. -
Ecotoxicology and Environmental Safety. 59: 340-348.
Lukkari, T., Taavitsainen, M., Soimasuo, M., Oikari, A. & Haimi, J.
2004: Biomarker responses of the earthworm Aporrectodea tuberculata
to copper and zinc exposure: differences between populations with and
without earlier metal exposure. – Environmental Pollution 129: 377-386.
Rantalainen, M.-L., Kontiola, L., Haimi, J., Fritze, H., & Setälä,
H. 2004: Influence of resource quality on the composition of soil
decomposer community in fragmented and continuous habitat. – Soil
Biology and Biochemistry 36: 1983-1996.
Rantalainen, M.-L., Fritze, H., Haimi, J., Pennanen, T. & Setälä,
H. 2005: Colonisation of newly established habitats by soil decomposer
organisms: the effect of habitat corridors in relation to colonisation
distance and habitat size. – Applied Soil Ecology 28: 67-77.
Lukkari, T. & Haimi, J. 2005: Avoidance of Cu and Zn contaminated
soil by three ecologically different earthworm species. - Ecotoxicology
and Environmental Safety 62: 35-41.
Lukkari, T., Aatsinki, M., Väisänen, A. & Haimi, J. 2005:
Toxicity of Cu and Zn assessed with three different earthworm tests. –
Applied Soil Ecology, in press.
Haimi, J., Laamanen, J., Penttinen, R., Räty, M., Koponen, S.,
Kellomäki, S. & Niemelä, P. 2005:
Impacts of elevated CO2 and temperature on the soil fauna of
boreal forests. -
Applied Soil Ecology, in press.
Lukkari, T., Teno, S., Väisänen, A. & Haimi, J. 2005: Effects of
earthworms on decomposition and metal availability in contaminated soil:
Microcosm studies of populations with different exposure histories. –
Soil Biology and Biochemistry, in press.
Haimi, J., Knott, K.E., Selonen, S. & Laurikainen, M. 2005: Has
long-term metal exposure induced changes in life history traits and
genetic diversity of the enchytraeid worm Cognettia sphagnetorum
(Vejd.)?. – Environmental Pollution, in press.
Date of birth: March 24, 1960.
Place of birth: Kuusankoski, Finland.
Marital status: Married to Pirkko-Liisa Haimi, two children (daughter
Elina 1993, son Antti 1996).
Ph.D. in Biology (Ecology and Environmental
Management), University of Jyväskylä, 1993.
M.Sc. in Biology (Ecology and Environmental Management), University of
Docent in Soil Ecology and Ecotoxicology, University of Joensuu, Finland,
Research assistant in Biology, University of Jyväskylä,
Researcher in Biology, University of Jyväskylä, 1985 and 1986
Junior/Senior Assistant and Assistant Professor in Biology (ecology and
environmental management), University of Jyväskylä, 1986-2001
Senior lecturer in Biology, University of Jyväskylä, 2001-present
Memberships in professional societies
International Society of Soil Science
Nordic Council for Ecology
Finnish Society for Environmental Sciences
Finnish Biological Society
Finnish Entomological Society
Finnish Lepidopterological Society
Janne Salminen (1996)
Esko Martikainen (1998)
Mira Liiri (2001, together with Heikki Setälä)
Anne Siira-Pietikäinen (2002)
Minna-Liisa Rantalainen (2004, together with Heikki Setälä)
Tuomas Lukkari (2004, together with Aimo Oikari)
Mika Räty (2004, together with Veikko Huhta)
Titta Kotilainen (in progress, together with Pedro Aphalo)
Referee in international journals
Soil Biology & Biochemistry, Oikos,
Pedobiology, Ecography, Environmetal Pollution.
Referee duties for research councils
The Netherlands Organisation for Scientific Research (NOW)
National Research Foundation (NRF) of South Africa.
Evaluations of Ph.D. theses
Visa Nuutinen (1997, opponent), University of Joensuu.
Matti Leppänen (1999, external reviewer), University of Joensuu.
Oili Kiikkilä (2002, external reviewer), University of Helsinki.
Organizer of congresses
XI International Colloquium on Soil Zoology,
Jyväskylä, Finland, 1992.
II International Workshop on Earthworm Ecotoxicology, Amsterdam, the
Invited speaker in international conferences and symposia
1998: Bioremediation of contaminated soil and
groundwater, 2. Environmental symposium of Maj and Tor Nessling
Foundation, Helsinki, Finland.
1998: The 8th Nordic Workshop, “Will soil animal ecology remain
1999: Conference on “Habitat Loss: Ecological, Evolutionary and Genetic
Consequences”, Helsinki, Finland.
most important research projects and funding
1990: Emil Aaltonen Foundation, for research in
1991: Ellen and Artturi Nyyssönen Foundation, for Ph.D. research in
1992-1995: Finnish Ministry of the Environment, grants for the research
“Harmful effects of chemicals in terrestrial environment”.
1993-1995: Finnish Ministry of Agriculture and Forestry, grants for
research in soil biodiversity.
1996-1998: Academy of Finland, project leader Prof. Jari Niemelä,
University of Helsinki, for the research “Biodiversity in forest
regeneration: decomposers and arthropods in the soil and litter”.
1997-1999: Academy of Finland, project team: Dr. Heikki Setälä
(responsible leader), Dr. Hannu Fritze and JH, for research “Functional
importance of biological diversity of soil decomposers to ecosystem’s
ability to resist disturbances”.
1998-2000: Academy of Finland, project team: Dr. Hannu Fritze (responsible
leader), Dr. Martin Romantschuk, Dr. Matti Karp, Dr. Kim Yrjälä and JH,
for the research “Microbial community of a coniferous humus under wood ash
with an increased Cd content”.
1999-2000: Maj and Tor Nessling Foundation, for the project “Effects of
forestry practices on soil decomposer community”.
2000-2002: Academy of Finland, project team: Dr. Heikki Setälä
(responsible leader), Dr. Hannu Fritze, Dr. Taina Pennanen and JH, for
research “Habitat fragmentation and performance of decomposer communities
– linking the mechanisms affecting diversity of soil decomposer organisms
to tree growth”.
2000-2005 for the research in the Centre of Excellence (leader Prof. Rauno
Alatalo) “Life-history and genetic variation in oligochaete worms
differently exposed to anthropogenic contaminants".
2002-2004: Maj and Tor Nessling Foundation, for the project “Use of
earthworms in soil quality assessment: responses of different species to
heavy metal exposure”
2005-: UPM-Kymmene forest company, "Impacts of stump removal on soil
decomposer community in coniferous forests"