Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2025
Forfattere
Carey Donald Gunnhild Jaastad Marianne Flågeng Sylvain Alain Yves Merel Josef Rasinger Marc Berntssen Ikram BelghitSammendrag
Insect farming is gaining increasing attention because of the ability of insects to upscale a variety of waste and by-product biomass efficiently into proteins and lipids. In the European Union and in Norway, the use of insects is permitted in formulated pig, poultry, and fish feeds and more recently for human consumption. However, the European Food Safety Authority has highlighted the lack of data regarding the safety of processing pesticide-contaminated biomass by insects into feed or food products. Secondly, the presence of insecticide residues in plant biomass might negatively affect the growth or survival of the insects themselves. This study aimed to evaluate the fate of the insecticide pirimiphos-methyl (PM) in black soldier fly (Hermetia illucens, BSF) and yellow mealworm (Tenebrio molitor, YMW) larvae composting. PM is a dominant pesticide found in relevant insect biomasses. Newly hatched larvae were fed on a standard poultry feed substrate spiked with pirimiphos-methyl at different concentrations: 10, 20, and 40 mg/kg (wet base), under optimal breeding conditions. Poultry feed substrate spiked with methanol served as control group. When the feeding media were spiked with 20 and 40 mg/kg of PM, the survival of both BSF and YMW larvae decreased. Mean larvae mass for both species was reduced with increasing concentrations of PM. PM and 7 compounds were identified in a metabolites/transformation product screen that was aided by in silico predictions. One compound, dihydroxy-PM was uniquely detected in larvae. Neither insect species appears to accumulate PM metabolites, and 90% of PM was metabolised. Results indicate that these insects can be reared on PM-contaminated biomass without risk of PM accumulation.
Forfattere
Marisa Di Sabatino Richard Randle-Boggis Ronald Reagon Ravi Kumar Harry Malhi Gabriele Lobaccaro Helge Bonesmo Ashok Sharma Steve Völler Gaute StokkanSammendrag
Agrivoltaics, also known as solar sharing or agri-PV, represents a pioneering con- cept that seeks to optimise land use by combining agriculture with photovoltaics on the same land area. While research and development on this topic have increased significantly, few studies address the issue in the Continental Subarctic Climate zone. In this paper, we report on the modelling and installation of a 48 kWp agrivoltaic system at the Skjetlein High School in Trondheim (Norway, lat. 63.34), which is currently the highest latitude system in the World, and we present the initial results of the impacts of the system on Timothy grass biomass. This work takes the first steps towards realising agrivoltaic opportunities for a broad area of Norwegian agriculture.
Sammendrag
Assessing forest vulnerability to disturbances at a high spatial resolution and for regional and national scales has become attainable with the combination of remote sensing-derived high-resolution forest maps and mechanistic risk models. This study demonstrated large-scale and high-resolution modelling of wind damage vulnerability in Norway. The hybrid mechanistic wind damage model, ForestGALES, was adapted to map the critical wind speeds (CWS) of damage across Norway using a national forest attribute map at a 16 m × 16 m spatial resolution. Parametrization of the model for the Norwegian context was done using the literature and the National Forest Inventory data. This new parametrization of the model for Norwegian forests yielded estimates of CWS significantly different from the default parametrization. Both parametrizations fell short of providing acceptable discrimination of the damaged area following the storm of November 19, 2021 in the central southern region of Norway when using unadjusted CWS. After adjusting the CWS and the storm wind speeds by a constant factor, the Norwegian parametrization provided acceptable discrimination and was thus defined as suitable to use in future studies, despite the lack of field- and laboratory experiments to directly derive parameters for Norwegian forests. The windstorm event used for model validation in this study highlighted the challenges of predicting wind damage to forests in landscapes with complex topography. Future studies should focus on further developing ForestGALES and new datasets describing extreme wind climates to better represent the wind and tree interactions in complex topography, and predict the level of risk in order to develop local climate-smart forest management strategies.
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Forfattere
Isabell EischeidSammendrag
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Isabell EischeidSammendrag
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Forfattere
Isabell EischeidSammendrag
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Forfattere
Jorunn BørveSammendrag
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