A5020608558- Ecology and Vegetation Dynamics Studies
- Fire effects on ecosystems
- Peatlands and Wetlands Ecology
- Botany and Plant Ecology Studies
- Plant Water Relations and Carbon Dynamics
- Species Distribution and Climate Change
- Land Use and Ecosystem Services
- Environmental Conservation and Management
- Plant Ecology and Soil Science
- Tree-ring climate responses
- Indigenous Studies and Ecology
- Rangeland and Wildlife Management
- Offshore Engineering and Technologies
- Historical and Archaeological Studies
- Plant and animal studies
- Maritime and Coastal Archaeology
- Geological Modeling and Analysis
- Sustainable Agricultural Systems Analysis
- Climate change and permafrost
- Agriculture Sustainability and Environmental Impact
- Forest Management and Policy
- Seed Germination and Physiology
- Agricultural Systems and Practices
- Marine and Offshore Engineering Studies
- Rangeland Management and Livestock Ecology
Møreforsking (Norway)
2017-2024
NILU
2011-2015
University of Bergen
2011-2014
Google (United States)
2014
Ruralis - Institute for Rural and Regional Research
2005
Norwegian University of Science and Technology
2005
Abstract Recent studies from mountainous areas of small spatial extent (<2500 km 2 ) suggest that fine‐grained thermal variability over tens or hundreds metres exceeds much the climate warming expected for coming decades. Such in temperature provides buffering to mitigate climate‐change impacts. Is this local restricted topographically complex terrains? To answer this, we here study across a 2500‐km wide latitudinal gradient N orthern E urope encompassing large array topographic...
Abstract Questions The coastal heathlands of northwest Europe are classified as highly endangered and a habitat high conservation importance throughout their geographic range. Previous research into heathland vegetation dynamics has typically been carried out within single sites or regions, hence little is known about the variability land‐use effects successional along biogeographic gradients. We test hypothesis that bioclimatic gradient key factor shaping post‐fire regeneration in C alluna...
Abstract Aim Previous research on how climatic niches vary across species ranges has focused a limited number of species, mostly invasive, and not, to date, been very conclusive. Here we assess the degree niche conservatism between distant populations native alpine plant that have separated for thousands years. Location European A lps F ennoscandia. Methods Of studied pool 888 terrestrial vascular occurring in both ennoscandia, used two complementary approaches test quantify climatic‐niche...
Sustainable nature management and ecosystem conservation depends critically on scientifically sound stakeholder-relevant analytical frameworks for monitoring assessing ecological condition. Several general are currently being developed internationally, including the Essential Biodiversity Variables (EBV), UN's SEEA EEA Ecosystem Condition Typology (ECT). However, there has so far been few attempts to develop empirical implementations of these frameworks, or assess their applicability...
Millennia of human land-use have resulted in the widespread occurrence what been coined ‘domesticated ecosystems’. The anthropogenic imprints on diversity, composition, structure and functioning such systems are well documented. However, evolutionary consequences activities these ecosystems enigmatic. Calluna vulgaris (L.) is a keystone species coastal heathlands northwest Europe, an ancient semi-natural landscape considerable conservation interest. Like many from naturally fire-prone...
Biotic homogenization due to replacement of native biodiversity by widespread generalist species has been demonstrated in a number ecosystems and taxonomic groups worldwide, causing growing conservation concern. Human disturbance is key driver biotic homogenization, suggesting potential challenges seminatural ecosystems, where anthropogenic disturbances such as grazing burning are necessary for maintaining ecological dynamics functioning. We test whether prescribed results the coastal...
Abstract Questions: How does Calluna vulgaris regenerate after burning wet and dry heaths of different age? Location: Central Norway. Methods: Patches dominated old young heath were burned. The mean temperatures reached in the categories measured. Cover, frequency, height number seedlings studied plots. Results: varied from 680 to 740°C, highest that had not been burned for at least 50 years. Regeneration was evident year burning, but only seeds. Even with a short interval lacked vegetative...
We conducted a national survey on high-quality internet panel to study landscape preferences in Norway, using photos as stimuli. examined preference heterogeneity with respect socio-demographic characteristics and latent topics brought up by the respondents, ordinal logistic regression structural topic modelling (STM), machine learning-based analysis. found that pasture landscapes are most favoured (55%), while densely planted spruce forests least (8%). The contrast was particularly strong...
Abstract Questions: Does stand age influence the direction and rate of post‐fire successional dynamics in coastal Calluna heaths can old degraded heath vegetation be restored through reintroduction fire? Location: Coastal Tarva archipelago, central Norway. Methods: We investigated revegetation after experimental fires set young (8 years since last fire) (>50 grazed stands. A repeated measures design was used, with floristic data recorded permanent plots successions ( n =12) over a 7‐year...
Abstract Aim We assessed temporal trends in functional diversity of the deep‐sea demersal fish communities East Greenland to characterize ecological responses rising sea temperatures. Location The study region encompasses a shelf and slope area located offshore between 63°N 66°N, east Greenland. Methods A unique dataset abundance covering depth range 1500 m over 18 years was combined with trait which included mix quantitative categorial traits that characterized species' morphology, feeding...
The coastal heathlands of Northwest Europe are highly valued cultural landscapes, that critically endangered due to land use and climatic changes, such as increased frequency severity drought events. Our study is the first assess how germination early seedling growth Calluna vulgaris respond drought. In a factorial design field experiment, we exposed maternal plants three in-situ treatments (control, 60%, 90% roof coverage), across successional stages after fire (pioneer, building, mature),...
In recent years, severe and deadly wildland-urban interface (WUI) fires have resulted in an increased focus on this particular risk to humans property, especially Canada, USA, Australia, countries the Mediterranean area. Also, areas not previously accustomed wildfires, such as boreal Sweden, Norway, Arctic, WUI recently increasing concern. January 2014, most wooden town fire Norway since 1923 raged through Lærdalsøyri. Ten days later, a wildfire scattered populated community of Flatanger...
Effective evidence-based nature conservation and habitat management relies on developing refining our methodological toolbox for detecting critical ecological changes at an early stage. This requires not only optimizing the use integration of evidence from available data, but also methods dealing with imperfect knowledge data deficiencies. For policy relevance, are often synthesized into indicators, which assessed against reference levels limit values. Here we explore challenges...
In the last decade, several major dwarf‐shrub dieback events have occurred in northern European coastal heathlands. These occur after extended periods with sub‐zero temperatures under snow‐free conditions and clear skies, suggesting that heathlands low resistance to winter drought. As climate projections forecast increased drought frequency, intensity, duration, are likely experience more such diebacks future. There are, however, few empirical studies of impacts responses on plant...
Early stages of Calluna vulgaris regeneration after burning coastal heaths on Tarva, central Norway
Abstract Questions During the winter of 2014, an intense drought combined with sub‐zero temperatures resulted in a massive Calluna dieback Norwegian heathlands. We studied initial vegetation recovery under two management approaches: natural and prescribed burning. hypothesized that will be slower more drought‐affected sites, whereas burning facilitate post‐fire all sites by effectively removing dead damaged heath. Both succession north. Location heath seven spanning approx. 600‐km...
Abstract Aims A number of modelling frameworks exist to aid in the identification and exploration stable states assessment resilience from ecological datasets. However, because such models are complex implement there is a substantial barrier for application research. Here we develop flexible model based on Bayesian approximation “stability landscape”. We illustrate its usage tropical area where variation tree cover has been previously interpreted as alternative states. Methods The stability...
The coastal heathlands of North-west Europe are valuable cultural landscapes, created and maintained over millennia by a land-use regime involving burning grazing. These now critically threatened throughout their range change and, increasingly, climatic changes. impacts complex, as the heathland regions experiencing increased temperature precipitation, but also frequency severity extreme events, such drought. Previous studies reveal that established vegetation, including Calluna, vulnerable...