A5058154911- Forest Ecology and Biodiversity Studies
- Lichen and fungal ecology
- Mycorrhizal Fungi and Plant Interactions
- Forest Management and Policy
- Fish Ecology and Management Studies
- Peatlands and Wetlands Ecology
- Greenhouse Technology and Climate Control
- Wildlife Ecology and Conservation
- Postharvest Quality and Shelf Life Management
- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- Animal and Plant Science Education
- Plant Diversity and Evolution
- Conservation, Biodiversity, and Resource Management
- Forest Insect Ecology and Management
- Marine and fisheries research
- Tree-ring climate responses
- Fish Biology and Ecology Studies
- Botanical Studies and Applications
- Fire effects on ecosystems
- Agricultural Practices and Plant Genetics
- Forest ecology and management
- Light effects on plants
- Rangeland and Wildlife Management
- Species Distribution and Climate Change
Swedish University of Agricultural Sciences
2018-2024
University of Eastern Finland
2014-2017
University of Oulu
2008
In forests, the amount and diversity of structural features with high value for biodiversity, such as large trees dead wood, are affected by productivity, stand age, forest management. For efficient conservation it is essential to understand combined effects these drivers. We used data from Swedish National Forest Inventory study management wood production on structures biodiversity: tree species richness, living trees, volume, specific types. changed relationship between productivity or...
Abstract Habitat loss is considered a major threat for biodiversity. However, the scales on which its effects occur are still insufficiently understood, namely, amount of available habitat important species richness both local and landscape scales? We studied landscape‐scale local‐scale density deadwood‐dependent lichens in Swedish boreal forests. Creation retention deadwood common practices to benefit forest biodiversity, recognizing relevant scale critical them be successful. surveyed 90...
Abstract Managing forests for timber yields reduces the amounts of old trees and deadwood, which has profound effects on species that are dependent them. Retention forestry, where some permanently left unharvested clear‐cut sites, may enable formation deadwood in managed forests, but it is unresolved how well these practices facilitate occurrence especially long term. We studied capacity tree retention to support diversity epiphytic lichens, a key group among threatened forest species....
Abstract In many managed landscapes, low‐productivity land comprises most of the remaining relatively untouched areas, and is often over‐represented within protected areas. The relationship between productivity conservational value a site poorly known; however, it has been hypothesized that biodiversity increases with due to higher resource abundance or heterogeneity, species communities are nested subset from more productive land. We tested these hypotheses for dead‐wood‐dependent beetles...
Harvesting stumps and logging residues for energy production may have negative impacts on forest species, especially those associated with dead wood. We assessed the potential impact of biofuel harvest epiphytic lichens by studying lichen assemblages downed fine woody debris (FWD) Scots pine (Pinus sylvestris L.) in clear-cut, mature managed, old-growth stands eastern Finland. also examined tree retention level prescribed burning these assemblages. A total 102 species (including 13...
Abstract Context Landscape habitat amount is known to increase biodiversity, while the effects of fragmentation are still debated. It has been suggested that negative may occur with a time lag, which could explain inconsistent results. However, there so far no empirical support for this idea. Objectives We evaluated whether and at landscape scale affect species density deadwood-dwelling lichens, these lag. Methods surveyed lichens in woodland key habitats two regions northern Sweden,...
Abstract Land set aside for preservation of biodiversity often has low productivity. As generally increases with productivity, due to higher or more diverse availability resources, this implies that some the may be left unprotected. Due a lack knowledge on species diversity and conservation value low‐productivity habitats, consequences biased allocation land set‐asides are unknown. We examined boreal forests (potential tree growth <1 m 3 ha −1 year ) by comparing assemblages tree‐...
Abstract Questions (i) What is the impact of legacy structures on lichen assemblage development up to two decades post‐fire? (ii) How does that vary among ecological groups? (iii) Are charcoal‐inhabiting assemblages regionally distinct? Location Hemiboreal pine forests, Estonia, and middle‐boreal eastern Finland. Methods We performed standard surveys (4 hr effort per 2 ha plot; all substrates 0–2 m from forest floor) measured structure in 18 burned sites (nine Finland nine Estonia). The...
Artificial creation of dead wood in managed forests can be used to mitigate the negative effects forestry on biodiversity. For this successful, it is essential understand conservation value that created has comparison naturally occurring wood, and, furthermore, where landscape addition most beneficial, i.e. how composition influences species occurrence wood. We examined these questions by surveying epixylic lichens artificially high stumps Scots pine (Pinus sylvestris) 3–17 years old...
Intensive forestry has led to changes in the structure and function of boreal forests endangerment forest-dwelling species.Different management methods, such as retention forestry, have been developed counter negative biodiversity impacts, although forest use intensified at same time: for example, stumps logging residues are commonly harvested biofuel.This thesis examines potential impacts biofuel harvest, prescribed burning on epiphytic lichen assemblages pine-dominated forests.In addition,...
Prescribed burning can be used to restore forest ecosystems degraded by anthropogenic pressures. However, some species such as epiphytic lichens may vulnerable fire. We studied the effects of fire on living and dead Pinus sylvestris (Scots pine) surveying up two meters trunks 21 years after experimental replicated prescribed burnings in pine-dominated boreal forests Finland. investigated three types stands that had faced different levels severity: 1) unburned semi-natural mature (i.e.,...
The COVID-19 pandemic that started in 2020 forced a rapid change university teaching, with large numbers of courses switching to distance learning very little time for preparation. Courses involving many practical elements and field excursions required particular care if students were fulfil planned outcomes. Here, we present our experiences teaching botany 2021. Using range methods tools introduce the subject, promote self-learning reflection give regular feedback, able produce course...
SummaryFrench tarragon (Artemisia dracunculus var. sativa) has been vegetatively propagated for centuries, but variability in the vegetative lines not studied. Three of French (A – C) were studied their overwintering capacity at limit survival, essential oil content and composition, genetic variability. Line B had lowest Winter survival rate, highest biomass yield, oils. The oils line higher proportions cis- trans-ocimenes, contained less estragole herniarin than A C. When diversity was...
Emulation of natural disturbances is often regarded as a key measure to make forestry biodiversity-oriented. Consequently, extraction logging residues assumed have little negative effect in comparison dead wood mainly formed at disturbances. This consistent with the evolutionary species pool hypothesis, which suggests that most are adapted naturally abundant habitats. We tested this hypothesis for dead-wood-dependent macrofungi, lichens, and beetles boreal forest landscape central Sweden,...
ypes of low-productive forests (stands on thin, rocky soils and mires; the main categories forest in Fennoscandia), two types productive (older managed stands unmanaged set aside for conservation purposes). We found a total 90 beetle species, 13 which were red-listed. Species richness was generally higher types: both species number red-listed highest set-asides lowest mires. positively correlated with volume diversity dead wood, but appeared to be better predictor forests. The composition...