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.
2020
Forfattere
Bianca CavicchiSammendrag
This study investigates the governance of bioenergy systems (BESs) and how it influences the bioenergy policy process and local sustainable development. The study compares the BES in Emilia Romagna and Hedmark. At first, bioenergy was expected to mitigate climate change and to tackle the crisis of the primary sectors and related industries. However, bioenergy policies were not equipped to address cross‐sectoral and multilevel issues. Therefore, they failed to secure the local, sustainable development. Critical weaknesses lie in BES governance. Actors' discourses, rules, and power issues form a complex structure that influences the bioenergy policy process and its outcomes. The study relies on systems thinking and system dynamics, and the pathways approach. It uses the system archetypes to investigate the bioenergy policy feedback dynamics and how to leverage local, sustainable development. Results show that power relations and social opposition are critical to a policy change that best secures local, sustainable development.
Forfattere
Stefano Puliti Johannes Breidenbach Johannes Schumacher Marius Hauglin Torgeir Ferdinand KlingenbergSammendrag
Det er ikke registrert sammendrag
Forfattere
Siri Vatsø Haugum Liv Guri Velle Pål Thorvaldsen Alexander Vågenes Casper Tai Christiansen Vigdis VandvikSammendrag
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Sammendrag
Understanding the factors that determine species’ resistance to environmental change is of utmost importance for biodiversity conservation. Here we investigated how the abundances of marshland species are determined by niche properties and functional traits. We re-surveyed 150 vegetation plots that were first surveyed in 1973 in order to explore species abundance changes over time. We found that the mean water level in the habitats of most studied species decreased significantly from 1973 to 2012. Nine of 17 target species were identified as abundance decreasing species and the other eight as abundance increasing species. The comparisons of seven plant characteristics (niche position water level, plant height, and five leaf traits) showed that the decreasing species had a significantly higher value of optimum water level and marginally significantly lower leaf N contents and specific leaf area (SLA) than those in increasing species. The stepwise regression analysis showed that optimum water level and leaf N were the best predictors of abundance changes of marsh plant species, as well as that the effect of optimum water level was stronger than that of leaf N. Our findings demonstrated that niche properties may be important for forecasting changes in wetland plant communities over time.
Forfattere
Anette SundbyeSammendrag
Det er ikke registrert sammendrag
Forfattere
Anette SundbyeSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Natasha Sant´Anna IwanickiSammendrag
Biological control of pests is a growing market in the world. It is expected that the use entomopathogenic fungi to control pests will take an important share of this market. Most fungal products in the world are based on aerial conidia produced by solid fermentation using cereal grains. An alternative for aerial conidia is the use of blastospores, yeast-like hydrophilic cells that can be produced in large amounts by liquid fermentation in a short time (<4 days), in a small space and with low hand labor compared to the solid fermentation method. Therefore, the main objectives of the present studies were first to optimize a liquid culture medium for low cost production of Metarhizium blastopores; second: to assess the bioactivity of air-dried blastospores against the cattle-tick Rhipicephalus microplus and the corn-leafhopper Dalbulus maidis; third: to develop an air-dried and spray-dried Metarhizium blastospore formulation with bioactivity against the corn-leafhopper D. maidis; fourth: to improve the shelf-life of the best air-dried and spray-dried formulations stored in refrigerated (± 4°C) and in ambient conditions (28°C) using oxygen and moistures absorbrs or vacuum and fifth: to use comparative genome-wide transcriptome analyses to determine changes in gene expression between the filamentous and blastospore growth phases in vitro to characterize physiological changes and metabolic signatures associated with M. anisopliae and M. rileyi dimorphism. We showed that blastospore production of Metarhizium is isolate- and species-dependent.Glucose-enriched cultures inoculated with pre-cultures improved yields reaching optimal growth for Metarhizium robertsii ESALQ1426 (5.9 × 108 blastospores/mL) within 2 d. We argue that both osmotic pressure, induced by high glucose titers, and isolate selection are critical to produce high yields of blastospores. [...]
Forfattere
Juan Hu Yuanyuan Yao Yalin Yang Chenchen Gao Fengli Zhang Rui Xia Chao Ran Zhen Zhang Jihong Liu Clarke Zhigang ZhouSammendrag
Probiotics confer a health benefit on the host and could be used as a good alternative to antibiotics. Probiotics are strain‐specific when exerting their function, so it is necessary to identify them to strain level. In recent years, intra‐species molecular typing and identification methods have developed rapidly, which commonly are used for typing the main pathogenic bacteria and rare for studies on probiotic typing, whilst it is imperative. This article describes molecular typing methods including AFLP, RAPD, PFGE, ribotyping, MLST, rep‐PCR and whole‐genome sequencing to identity some aquatic probiotics approved by the Ministry of Agriculture of China, which are Bifidobacterium, Enterococcus, Lactobacillus, Pediococcus, Aspergillus, Bacillus, Rhodopseudomonas palustris and Streptococcus thermophilus. In addition, the principles, applications, advantages and disadvantages of these typing methods are also discussed.