A5075598413- Invertebrate Taxonomy and Ecology
- Aquatic Invertebrate Ecology and Behavior
- Ecology and Vegetation Dynamics Studies
- Peatlands and Wetlands Ecology
- Species Distribution and Climate Change
- Soil Carbon and Nitrogen Dynamics
- Plant and animal studies
- Collembola Taxonomy and Ecology Studies
- Rangeland and Wildlife Management
- Marine and environmental studies
- Fire effects on ecosystems
- Ecology and biodiversity studies
- Pharmaceutical and Antibiotic Environmental Impacts
- Animal Ecology and Behavior Studies
- Study of Mite Species
- Fish Ecology and Management Studies
- Avian ecology and behavior
- Food Waste Reduction and Sustainability
- Tree Root and Stability Studies
- Pesticide and Herbicide Environmental Studies
- Engineering and Environmental Studies
- Agriculture, Soil, Plant Science
- Analytical chemistry methods development
- Mining and Gasification Technologies
- Hydrocarbon exploration and reservoir analysis
Estonian University of Life Sciences
2006-2024
Tallinn University of Technology
2008-2019
Friedrich Schiller University Jena
2010-2013
Schiller International University
2012
Soil life supports the functioning and biodiversity of terrestrial ecosystems. Springtails (Collembola) are among most abundant soil arthropods regulating fertility flow energy through above- belowground food webs. However, global distribution springtail diversity density, how these relate to fluxes remains unknown. Here, using a dataset representing 2470 sites, we estimate total biomass at 27.5 megatons carbon, which is threefold higher than wild vertebrates, record peak densities up 2...
The diversity–stability hypothesis states that current losses of biodiversity can impair the ability an ecosystem to dampen effect environmental perturbations on its functioning. Using data from a long-term and comprehensive experiment, we quantified temporal stability 42 variables characterizing twelve ecological functions in managed grassland plots varying plant species richness. We demonstrate diversity increases i) across trophic levels (producer, consumer), ii) at both system...
Synthesis The interplay between bottom‐up and top‐down effects is certainly a general manifestation of any changes in both species abundances diversity. Summary variables, such as numbers, diversity indices or lumped provide too limited information about highly complex ecosystems. In contrast, by analyses ecological communities comprising hundreds are inevitably only snapshot‐like lack generality explaining processes within communities. Our synthesis, based on matrices functional groups all...
Springtails (Collembola) inhabit soils from the Arctic to Antarctic and comprise an estimated ~32% of all terrestrial arthropods on Earth. Here, we present a global, spatially-explicit database springtail communities that includes 249,912 occurrences 44,999 samples 2,990 sites. These data are mainly raw sample-level records at species level collected predominantly private archives authors were quality-controlled taxonomically-standardised. Despite covering continents, most come European...
Wader populations have been declining worldwide, providing a fundamental question as to which environmental factors limit population growth. Many studies focused on the effects of habitat change wader result climate change, agricultural intensification or abandonment arable land. However, there are few investigating relationship between distribution/abundance and prey abundance. This study breeding abundance, characteristics abundance different types coastal floodplain grasslands. The was...
The major sources of heavy metal pollution in Estonia are oil shale industry and combustion.There is an utmost need to monitorsoil with metals this region.Earthworms good accumulators can be used as bioindicators.Endogeic species Aporrectodea caliginosa rosea well anecic Lumbricus terrestris bioindicators for Zn(II) Cu(II) ions soils contaminated by waste or fly ash because the high level accumulation these their tissues.Electrochemical methods were determination earthworms amount sample...
Soil life supports the functioning and biodiversity of terrestrial ecosystems 1, 2 . Springtails (Collembola) are among most abundant soil animals regulating fertility flow energy through above- belowground food webs 3–5 However, global distribution springtail diversity density, how these relate to fluxes remains unknown. Here, using a dataset collected from 2,470 sites, we estimate total biomass at 29 Mt carbon (threefold higher than wild vertebrates 6 ) record peak densities up million...
This study was conducted to compare how the nutrients and organic matter content in household kitchen wastes sewage sludge transform 120-days vermicomposting experiment. The concentrations of nitrogen, phosphorous potassium increased during dry composts decreased value pH case for vermicompost it remained almost unchanged. amounts half initial masses, but remarkably both sawdust mixtures as a result vermicomposting. Vermicompost made from contained 3.3% total 0.7% 5.8% potassium. In...
Soil has stored organic carbon in the form of humus for thousands years. One main problems near future is agricultural land degradation due to excessively intensive farming. The aric and semi-arid lands Kenya constitues about 80% (467,200 sq.km) total mass. Thus, arid semiarid hosts 35% Kenyas population (13 million people). objective project was explore feasibility restoring vegetation desertified areas by implementing individual, isolated moisture reservoirs each plant, filled with a...
Sewage sludge compost can be a source of nutrients for plants and contamination by pharmaceutical products. In this study the presence some widely used pharmaceuticals in sewage its –namely ciprofloxacin C17H18FN3O3, ofloxacin C18H20FN3O4, norfloxacin C16H18FN3O3, sulfadimethoxine C12H14N4O4S sulfamethoxazole C10H11N3O3S – was shown. several samples their concentrations exceeded relevant trigger values manure. The highest ciprofloxacin, ready commercialization sufficiently threshold...
Abstract The aim of the paper is to give an overview about distribution endogeic species Octalasion cyaneum (Savigny, 1826) in Estonia. First time, this was found 1980s Tallinn Botanical Garden (Northern-Estonia). new results show that O. slowly expanding into Estonian territory and becoming more abundant.
Urban brownfields are ecologically valuable ecosystems that have been and under various anthropogenic influences. Because subject to rapid development in urban areas, their biological communities, including soil mesofauna, overlooked seldom researched, even though they could provide insight into the ecological functioning of these areas. This exploratory study describes community characteristics oribatid mite fauna 12 Tallinn, Estonia, analyzes potential mites as bioindicators brownfield...
Semi-coke is classified as an environmentally harmful residue of oil shale industry due to its toxic components: several organic and inorganic compounds -oil products, asphaltenes, phenols, PAHs, sulphuric compounds.The aim the present work was compare abundances species compositions soil invertebrate assemblages (Collembola, Lumbricidae, Araneae, Myriapoda, Coleoptera) in artificial substrate from vegetated bare sites semi-coke heaps Estonian industry.Invertebrate communities were studied...
Abstract Even though airfields, which are often anthropologically modified natural areas, continuously influenced by human activities, their soils still dynamic ecosystems containing various habitats for microscopic groups of organisms ignored. In this exploratory study, the microarthropod fauna, Collembola (Hexapoda) and oribatid mites (Acari: Oribatida), diatom (Bacillariophyta) flora were identified in three Estonian both runway sides snow-melting sites investigated. The communities these...
The increased global demand for energy has led to the opening of large mining areas worldwide. largest commercially exploited oil shale deposit in world (total amount resources 7x109 tons) is located North-East Estonia. Mining essential provide industries but can result a destruction pre-mining and post-mining ecosystem. Restoring ecosystems one most important aspects contemporary environmental conservation. Naturally, vegetation soil develop slowly quarry areas, so far, reclamation been...