Projects per year
Personal profile
Research interests
I investigate soil carbon and nitrogen cycling in tundra ecosystems and boreal
and subarctic forests with special emphasis on soil decomposer microorganisms
that are responsible for litter and soil organic matter decomposition. Recently
the focus has been in studying effects of global change on northern ecosystems
at different levels of grazing intensity, and how plant and soil responses
interact to form ecosystem carbon balance that links back to global climate.
Other field of science
- Ecology, evolutionary biology
- Plant biology, microbiology, virology
Field of science
- Environmental sciences
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Projects
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HISTECO: Historical sites as a novel tool for predicting long-term boreal and subarctic ecosystem change (HISTECO)
Stark, S., Manninen, O., Myrsky, E. & Turunen, M.
01.09.2019 → 31.08.2023
Project: Co-funded project
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Below-ground colors of Arctic vegetation greening: How shifts in soil microbial life strategies influence soil carbon stocks
01.01.2019 → 31.12.2021
Project: Co-funded project
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Sustainable bioeconomy on reindeer pastures
Stark, S., Landauer, M., Forbes, B., Turunen, M. & Rasmus, S.
13.02.2018 → 31.12.2019
Project: Co-funded project
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Historical legacies in the northern tundra ecosystem
01.01.2017 → 30.06.2019
Project: Co-funded project
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Interactive effects of grazing and global change on ecosystem carbon stocks in subarctic ecosystems
Stark, S. & Ylänne, H.
01.01.2013 → 31.12.2015
Project: Co-funded project
Research output
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Ice-on-snow and compacted and absent snowpack exert contrasting effects on soil carbon cycling in a northern boreal forest
Stark, S., Martz, F., Ovaskainen, A., Vuosku, J., Männistö, M. K. & Rautio, P., 29 Aug 2020, In : Soil Biology and Biochemistry. 150, 107983.Research output: Contribution to journal › Article › Scientific › peer-review
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Päätulokset, johtopäätökset ja toimenpide-ehdotukset eri osaraporteista
Kumpula, J., Pekkarinen, A-J., Tahvonen, O., Stark, S., Turunen, M., Rasmus, S., Saarikoski, H., Landauer, M., Jokinen, M. & Oinonen, K., 2020, Kestävä biotalous porolaitumilla -hankkeen osaraportit, johtopäätökset ja toimenpide-ehdotukset. Kumpula, J. & Siitari, S. (eds.). Helsinki: Luonnonvarakeskus, p. 86-98 (Luonnonvara- ja biotalouden tutkimus; No. 29, Vol. 2020).Research output: Chapter in Book/Report/Conference proceeding › Chapter › Professional
Open Access -
Porolaidunten ekologinen tila ja hiilitase
Stark, S., Turunen, M., Rasmus, S. & Kumpula, J., 2020, Kestävä biotalous porolaitumilla -hankkeen osaraportit, johtopäätökset ja toimenpide-ehdotukset. Kumpula, J. & Siitari, S. (eds.). Helsinki: Luonnonvarakeskus, p. 35-41 (Luonnonvara- ja biotalouden tutkimus; No. 29, Vol. 2020).Research output: Chapter in Book/Report/Conference proceeding › Chapter › Professional
Open Access -
Removal of grazers alters the response of tundra soil carbon to warming and enhanced nitrogen availability
Ylänne, H., Kaarlejärvi, E., Väisänen, M., Männistö, M. K., Ahonen, S. H. K., Olofsson, J. & Stark, S., 3 Feb 2020, In : Ecological Monographs. 90, 1, e01396.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access -
Stomping in silence: Conceptualizing trampling effects on soils in polar tundra
Tuomi, M., Väisänen, M., Ylänne, H., Brearley, F. Q., Barrio, I. C., Bråthen, K. A., Eischeid, I., Forbes, B. C., Jónsdóttir, I. S., Kolstad, A. L., Macek, P., Petit Bon, M., Speed, J. D. M., Stark, S., Svavarsdóttir, K., Thórsson, J. & Bueno, C. G., 24 Nov 2020, In : Functional Ecology.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access
Activities
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Belowground biodiversity as a link between Arctic ecosystem change and carbon sequestration
Sari Stark (Speaker)
26 Oct 2020Activity: Presentation › Conference presentation
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Travel to Science: How do scientists look at our landscape?
Sari Stark (Speaker)
10 Oct 2020Activity: Presentation › Public or invited talk
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Swedish Research Council, arviopaneelin jäsenyys
Sari Stark (Reviewer)
15 Jun 2020 → 16 Sep 2020Activity: Evaluation, assessment or examination › Evaluation of funding applications
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Wildfire impact on permafrost: changes in microbial community and soil decomposition
Sari Stark (Examiner)
1 Feb 2020 → 2 Apr 2020Activity: Evaluation, assessment or examination › Pre-examination of dissertation, acting as opponent to a doctoral student, member of dissertaton committee
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Opettaminen kurssilla "Workshop on carbon sinks in arctic and boreal soils – impacts of global warming and landuse changes", Doctoral Degree Programme in Biology, University of Oulu, Department of Ecology and Genetics
Sari Stark (Invited speaker)
9 Dec 2019 → 10 Dec 2019Activity: Presentation › Conference presentation