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.
2012
Forfattere
Tore SkrøppaSammendrag
Det er ikke registrert sammendrag
Forfattere
Ricardo HolgadoSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Kirsty McKinnonSammendrag
Det er ikke registrert sammendrag
Forfattere
Britt Henriksen Naturbruk NRKSammendrag
Liggeunderlag i fjøset, dyrevelferd, liggeunderlag og liggetid, melkeproduksjon, nakkebom. Del av undervisningsopplegg Vg3, Økologisk Landbruk
Forfattere
Jens Rohloff Eivind Uleberg Laura Jaakola Kajetan Trost Olavi Junttila Hely Häggman Inger MartinussenSammendrag
Individual bilberry plants from two Northern and two Southern clones were studied for climatic effects on production and quality in a controlled phytotrone experiment at 12 °C and 18 °C in a 2-year trial. At each temperature the following light conditions were tested: 1) 12 h natural light (short day); 2) 24 h natural light (long day) and 3) 24 h natural light (long day) plus red light. In order to ensure sufficient and comparable fruit set between treatments, flower pollination was executed outdoors. Berry yield, quality parameters such as total anthocyanins, total phenols and antioxidant capacity, and chemical composition (GC/MS-based metabolite profiling) were recorded in both years, while HPLC-based anthocyanin analysis was only carried out in the second year. All analyzed compounds showed significant year-to-year variation with the exception of antioxidant activity. The experiment was conducted under natural light conditions, and therefore light intensity and quality varied between the two growing seasons. The first experimental year there was no difference in yield between temperatures, however, the second experimental year the berry yield was significantly higher at 18 °C. Temperature treatments led to faster berry ripening in the Northern than in the Southern clones at 12 °C. Metabolite profiling also revealed higher levels of flavanols, hydroxycinnamic acids, quinic acid and carbohydrates at 12 °C. Clonal effects showed that the content of all anthocyanin derivatives, as well as levels of antioxidants, total phenolics, malic acid and sucrose were highest in the Northern clones, while Southern clones had higher levels of hydroxycinamic acids, epicatechin, quinic acid and myo-inositol. Northern clones were also more responsive to additional red light with highest levels of anthocyanins under long-day treatment.
Forfattere
Rose BergslidSammendrag
Den aller største utfordringen for norsk landbruk, og rekrutteringen til landbruket, er dårlig økonomi. Mange av utfordringene man har som kvinnelig bonde kan løses dersom økonomien gir rom for å leie inn hjelp. Det kommer fram i en fersk rapport som Møre og Romsdal Bondelag har fått utført av Bioforsk Økologisk om kvinner i landbruket: ”Toppleder i grønn kjeledress – dybdeintervju med 12 kvinner om landbruket i Møre og Romsdal”. På tross av ulik livssituasjon og alder går svarene fra de 12 damene stort sett i samme retning.
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Julia Schregel Alexander Kopatz Snorre Hagen Henrik Brøseth Martin Smith Steinar Wikan Ingvild Wartiainen Paul Eric Aspholm Jouni Aspi Jon Swenson O. Makarova Natalia Polikarpova Michael Schneider Per Knappskog Minna Ruokonen Ilpo Kojola Konstantin F. Tirronen Pjotr I. Danilov Hans Geir EikenSammendrag
Noninvasively collected genetic data can be used to analyse large-scale connectivity patterns among populations of large predators without disturbing them, which may contribute to unravel the species’ roles in natural ecosystems and their requirements for long-term survival. The demographic history of brown bears (Ursus arctos) in Northern Europe indicates several extinction and recolonization events, but little is known about present gene flow between populations of the east and west. We used 12 validated microsatellite markers to analyse 1580 hair and faecal samples collected during six consecutive years (2005–2010) in the Pasvik Valley at 70_N on the border of Norway, Finland and Russia. Our results showed an overall high correlation between the annual estimates of population size (Nc), density (D), effective size (Ne) and Ne ⁄Nc ratio. Furthermore, we observed a genetic heterogeneity of _0.8 and high Ne ⁄Nc ratios of _0.6, which suggests gene flow from the east. Thus, we expanded the population genetic study to include Karelia (Russia, Finland), Va¨sterbotten (Sweden) and Troms (Norway) (477 individuals in total) and detected four distinct genetic clusters with low migration rates among the regions. More specifically, we found that differentiation was relatively low from the Pasvik Valley towards the south and east, whereas, in contrast, moderately high pairwise FST values (0.91–0.12) were detected between the east and the west. Our results indicate ongoing limits to gene flow towards the west, and the existence of barriers to migration between eastern and western brown bear populations in Northern Europe.
Forfattere
Lars Sandved DalenSammendrag
En liten overhøvling: I DNs artikkel om Barkevik Bruk 14. juni dukker to feilstavede barkbiller opp. Uansett hva Øystein Sundes «Barkebille Boogie» lærte oss å si, staves ordet barkbille uten e i midten. Rett skal være rett, ikke minst når det gjelder profilerte lister.