A5014871788- Animal Ecology and Behavior Studies
- Ecology and Vegetation Dynamics Studies
- Wildlife Ecology and Conservation
- Viral Infections and Vectors
- Aquatic Ecosystems and Phytoplankton Dynamics
- Soil and Water Nutrient Dynamics
- Fire effects on ecosystems
- Botany and Plant Ecology Studies
- Peatlands and Wetlands Ecology
- Ecology and biodiversity studies
- Freshwater macroinvertebrate diversity and ecology
- Species Distribution and Climate Change
- Vector-Borne Animal Diseases
- Vector-borne infectious diseases
- Coastal wetland ecosystem dynamics
- Zoonotic diseases and public health
- Avian ecology and behavior
- Wildlife-Road Interactions and Conservation
- Constructed Wetlands for Wastewater Treatment
- Lichen and fungal ecology
- Land Use and Ecosystem Services
- Forest Ecology and Biodiversity Studies
- Animal Disease Management and Epidemiology
- Toxic Organic Pollutants Impact
- Fish Ecology and Management Studies
Swedish University of Agricultural Sciences
2016-2025
University of Helsinki
2022-2025
Luleå University of Technology
2002-2012
International Institute for Applied Systems Analysis
2006-2008
Suggestions of collapse in small herbivore cycles since the 1980s have raised concerns about loss essential ecosystem functions. Whether such phenomena are general and result from extrinsic environmental changes or intrinsic process stochasticity is currently unknown. Using a large compilation time series vole abundances, we demonstrate consistent cycle amplitude dampening associated with reduction winter population growth, although regulatory processes responsible for cyclicity not been...
Abstract Aim We studied global variation in beta diversity patterns of lake macrophytes using regional data from across the world. Specifically, we examined (1) how aquatic is partitioned between species turnover and nestedness within each study region, (2) which environmental characteristics structure these components. Location Global. Methods used presence–absence for 21 regions distributed around calculated pairwise‐site multiple‐site among lakes region Sørensen dissimilarity index it...
Lead poisoning of animals due to ingestion fragments from lead-based ammunition in carcasses and offal shot wildlife is acknowledged globally raises great concerns about potential behavioral effects leading increased mortality risks. levels blood were correlated with progress the moose hunting season. Based on analyses tracking data, we found that even sublethal lead concentrations (25 ppb, wet weight), can likely negatively affect movement behavior (flight height rate) free-ranging...
Unlike in land plants, photosynthesis many aquatic plants relies on bicarbonate addition to carbon dioxide (CO2) compensate for the low diffusivity and potential depletion of CO2 water. Concentrations vary greatly with catchment geology. In this study, we investigate whether there is a link between these concentrations frequency freshwater possessing use trait. We show, globally, that plant species trait increases concentration. Regionally, however, reduced at sites where concentration...
Anaplasma phagocytophilum is currently regarded as a single species. However, molecular studies indicate that it can be subdivided into ecotypes, each with distinct but overlapping transmission cycle. Here, we evaluate the interactions between and within clusters of haplotypes bacterium isolated from vertebrates ticks, using phylogenetic network-based methods. The presence A. DNA was determined in ticks vertebrate tissue samples. A fragment groEl gene amplified sequenced qPCR-positive...
Aquatic vegetation has important ecological and regulatory functions should be monitored in order to detect ecosystem changes. Field data collection is often costly time-consuming; remote sensing with unmanned aircraft systems (UASs) provides aerial images sub-decimetre resolution offers a potential source for mapping. In manual mapping approach, UAS true-colour 5-cm-resolution pixels allowed the identification of non-submerged aquatic at species level. However, labour-intensive, while...
The "dilution effect" implies that where species vary in susceptibility to infection by a pathogen, higher diversity often leads lower prevalence hosts. For directly transmitted pathogens, non-host may "dilute" (1) and indirectly (2). Competitors predators alter host behavior reduce pathogen transmission or (2) density. In well-studied system, we tested the dilution of zoonotic Puumala hantavirus (PUUV) bank voles (Myodes glareolus) two competitors predator. Our study was based on long-term...
Population fluctuations are widespread across the animal kingdom, especially in order Rodentia, which includes many globally important reservoir species for zoonotic pathogens. The implications of these spillover remain poorly understood. Here, we report a global empirical analysis data describing linkages between habitat use, population and status rodents. Our quantitative synthesis is based on collated from papers databases. We show that magnitude combined with species' synanthropy degree...
Reports of fading vole and lemming population cycles persisting low populations in some parts the Arctic have raised concerns about spread these fundamental changes to tundra food web dynamics. By compiling 24 unique time series fluctuations across circumpolar region, we show that virtually all displayed alternating periods cyclic/non-cyclic over past four decades. Cyclic patterns were detected 55% ( n = 649 years pooled sites) with a median periodicity 3.7 years, non-cyclic not more...
1 In northern Scandinavia there are indications of a long-term decline in the abundance three dominant vole species, Clethrionomys glareolus , rufocanus and Microtus agrestis since 1970s. One explanation proposes that intensified clear-cutting has created even-aged homogeneous forest stands with poor overall conditions for survival reproduction voles. 2 We investigated relationship between age structural habitat factors its implications species richness small mammals. particular, we assessed...
Abstract Questions Do high‐resolution (sub‐decimetre) aerial images taken with unmanned aircraft systems (UASs) allow a human interpreter to recognize aquatic plant species? Can UAS be used (1) produce vegetation maps at the species level; and (2) estimate abundance? Location One river two lake test sites in northern Sweden, middle boreal sub‐zone. Methods At one site we evaluated accuracy which can identified on printouts of (scale 1:800, resolution 5.6 cm). As assessment units homogeneous...
Summary Restoration of river hydromorphology often has limited detected effects on biota. One frequently discussed reason is that the restored length insufficient to allow populations develop and give room for geomorphological processes occur. We investigated ten pairs sections which one was a large project involving long, intensively section represented smaller restoration effort. The effect quantified by comparing each an upstream non‐restored section. sampled following response variables:...
Ecosystem engineers can increase biodiversity by creating novel habitat supporting species that would otherwise be absent. Their more routine activities further influence the biota occupying engineered habitats. Beavers are well-known for transforming ecosystems through dam building and therefore increasingly being used restoration, adaptation to climate extremes in long-term rewilding. Abandoned beaver ponds (BP) develop into meadows or forested wetlands differ fundamentally from other...
We studied community–environment relationships of lake macrophytes at two metacommunity scales using data from 16 regions across the world. More specifically, we examined (a) whether macrophyte communities respond similar to key local environmental factors, major climate variables and spatial locations in each (i.e., within-region approach) (b) how well can explained variability multiple metacommunities be accounted for by elevation range, extent, latitude, longitude, age oldest within...
Anthropogenic changes to land use drive concomitant in biodiversity, including that of the soil microbiota. However, it is not clear how increasing intensity human disturbance reflected microbial communities. To address this issue, we used amplicon sequencing quantify microbiota (bacteria and fungi) forests (n = 312) experiencing four different uses, national parks (set aside for nature conservation), managed (for forestry purposes), suburban (on border an urban area) (fully within a town or...
Abstract ‘Staggering disease’ is a neurological disease entity considered threat to European domestic cats ( Felis catus ) for almost five decades. However, its aetiology has remained obscure. Rustrela virus (RusV), relative of rubella virus, recently been shown be associated with encephalitis in broad range mammalian hosts. Here, we report the detection RusV RNA and antigen by metagenomic sequencing, RT-qPCR, in-situ hybridization immunohistochemistry brain tissues 27 out 29 non-suppurative...