A5102865554- Geology and Paleoclimatology Research
- Freshwater macroinvertebrate diversity and ecology
- Species Distribution and Climate Change
- Research in Social Sciences
- Heavy metals in environment
- Soil and Water Nutrient Dynamics
- Fish Ecology and Management Studies
- Aquatic Invertebrate Ecology and Behavior
- Groundwater and Isotope Geochemistry
- Peatlands and Wetlands Ecology
- Aquatic Ecosystems and Phytoplankton Dynamics
- Isotope Analysis in Ecology
- Forest Ecology and Biodiversity Studies
- Geochemistry and Geologic Mapping
- Environmental Toxicology and Ecotoxicology
- Diverse Academic Research Areas
- Fire effects on ecosystems
- Toxic Organic Pollutants Impact
- Geological formations and processes
- Ecology and Vegetation Dynamics Studies
- Environmental DNA in Biodiversity Studies
- Hydrology and Watershed Management Studies
- Phosphorus and nutrient management
- Mine drainage and remediation techniques
- Mercury impact and mitigation studies
University of Jyväskylä
2018-2021
Finnish Environment Institute
2018-2020
University of Oulu
1985-2020
Swedish University of Agricultural Sciences
1997
University of Helsinki
1983-1987
ABSTRACT The Anthropocene presents formidable threats to freshwater ecosystems. Lakes are especially vulnerable and important at the same time. They cover only a small area worldwide but harbour high levels of biodiversity contribute disproportionately ecosystem services. differ with respect their general type (e.g. land‐locked, drainage, floodplain large lakes) position in landscape highland versus lowland lakes), which dynamics these systems. should be generally viewed as ‘meta‐systems’,...
Abstract Ecological drift can override the effects of deterministic niche selection on small populations and drive assembly some ecological communities. We tested this hypothesis with a unique data set sampled identically in 200 streams two regions (tropical Brazil boreal Finland) that differ macroinvertebrate community size by fivefold. Null models allowed us to estimate magnitude which β‐diversity deviates from expectation under random process while taking differences richness relative...
Abstract Aim Biological diversity typically varies between climatically different regions, and regions closer to the equator often support higher numbers of taxa than those poles. However, these trends have been assessed for a few organism groups, existing studies rarely based on extensive identical surveys in climatic regions. Location We conducted standardized wadeable streams boreal (western Finland) subtropical (south‐eastern Brazil) region, sampling insects identically from 100 each...
Previous studies have found mixed results regarding the relationship between beta diversity and latitude. In addition, by influencing local environmental heterogeneity, land use may modify spatial taxonomic functional variability among communities causing biotic differentiation or homogenization. We tested 1) whether diversities streams within watersheds differ subtropical boreal regions 2) is related to in both regions. sampled aquatic insects 100 (Brazil) (Finland) across a wide gradient...
Valid reconstruction of long-term forest fire histories from individual peat cores usually fails, for a number reasons, even though visible charcoal horizons in are indisputable evidence local or in-situ fires. Both the dating and reliability records can be improved by means ‘basin-based approach’, which gradual lateral growth is studied carefully numerous dated basal samples. Applying this principle, frequency fires an esker landscape southern Finland was elucidated over past 7000 years....
Abstract Ecological drift can override the effects of deterministic niche selection on small populations and drive assembly communities. We tested hypothesis that smaller local communities are more dissimilar among each other because ecological than larger communities, which mainly structured by selection. used a unique, comprehensive dataset insect sampled identically in total 200 streams climatically different regions (Brazil Finland) differ community size fivefold. Null models allowed us...