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.
2022
Forfattere
Pia C. Kristiansen Julie B. Myrås Thea T. Nørvåg Marit I. Kvernmoen Benedicte S. Nilssen Sebastian Eiter Wendy FjellstadSammendrag
Participation in Linderud neighbourhood and community garden in Oslo is mostly motivated by social aspects and by the desire to grow organic food.
Forfattere
Ghislain Tchoromi Tepa-Yotto Robert L. Meagher Jeannette K. Winsou Borghero T. A. Dahoueto Manuele Tamò May Sæthre Rodney N. NagoshiSammendrag
The fall armyworm, Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), has now become a pest of global concern. Originally known to be endemic to the Western Hemisphere, its first detection in Africa was followed by spectacular outbreaks and spread to almost all sub-Saharan countries. The rapid incursion of S. frugiperda on maize (Zea mays L.; Poaceae) fields in Africa highlighted a crucial need for a comprehensive assessment of integrated pest management strategies in most smallholder farms. However, these strategies cannot successfully function without efficient monitoring and surveillance efforts. These trapping studies were designed to provide an indication as to whether pheromone trap-lure combinations and simple changes in landscape and agricultural practices might mitigate fall armyworm infestations. Our data show that the commercially available Unitrap was the most effective design for fall armyworm captures among the traps tested. The inexpensive home-made 2 L jar trap was capable of consistently collecting fall armyworm during the first season of relatively moderate fall armyworm density. However, the number of fall armyworm captured by home-made trap were several fold lower than by the Unitrap under all conditions, and almost no fall armyworm was captured during the second season by home-made 2 L jar when fall armyworm density was low. Substantial differences were observed among the pheromone blends with respect to numbers of fall armyworm and non-targets captured. The 4-component blend attracted the most fall armyworm under all conditions. The 2-component blend was the most selective, with no non-target species found during the second season experiments.
Forfattere
Anne Catriona Mehlhoop Bram Van Moorter Christer Moe Rolandsen Dagmar Hagen Aksel Granhus Rune Eriksen Thor Harald Ringsby Erling Johan SolbergSammendrag
Like large carnivores, hunters both kill and scare ungulates, and thus might indirectly affect plant performance through trophic cascades. In this study, we hypothesized that intensive hunting and enduring fear of humans have caused moose and other forest ungulates to partly avoid areas near human infrastructure (perceived hunting risk), with positive cascading effects on recruitment of trees. Using data from the Norwegian forest inventory, we found decreasing browsing pressure and increasing tree recruitment in areas close to roads and houses, where ungulates are more likely to encounter humans. However, although browsing and recruitment were negatively related, reduced browsing was only responsible for a small proportion of the higher tree recruitment near human infrastructure. We suggest that the apparently weak cascading effect occurs because the recorded browsing pressure only partly reflects the long-term browsing intensity close to humans. Accordingly, tree recruitment was also related to the density of small trees 5–10 years earlier, which was higher close to human infrastructure. Hence, if small tree density is a product of the browsing pressure in the past, the cascading effect is probably stronger than our estimates suggest. Reduced browsing near roads and houses is most in line with risk avoidance driven by fear of humans (behaviorally mediated), and not because of excessive hunting and local reduction in ungulate density (density mediated).
Forfattere
Shelemia Nyamuryekung'e Andres F. Cibils Richard Estell Dawn VanLeeuwen Sheri Spiegal Caitriana M. Steele Alfredo L. Gonzalez Matthew M. McIntosh Qixu Gong Huiping CaoSammendrag
Det er ikke registrert sammendrag
Forfattere
Mette Goul Thomsen Anne-Kristin Løes Randi Seljåsen Tatiana Francischinelli Rittl Kari BysveenSammendrag
Det er ikke registrert sammendrag
Forfattere
Finn-Arne HaugenSammendrag
Det er ikke registrert sammendrag
Forfattere
Michel VerheulSammendrag
Det er ikke registrert sammendrag
Sammendrag
Gravplassmyndigheten i Larvik planlegger å utvide Kvelde Kirkegård i Larvik kommune. Utbyggingen vil føre til nedbygging av dyrka mark på gnr. 2090/bnr. 69, og jorda må derfor flyttes for å opparbeide nye jordbruksareal. Det er gjort vurdering av jordsmonnet på det dyrka arealet og foretatt en vurdering av hvor mye av jorda som egner seg til jordflytting. Jordsmonnsundersøkelser på området på Kvelde viste at det var siltige sandmasser i matjordlaget. I undergrunnsjorda var det små variasjoner av mengde sand og leire i jorden, men høyt siltinnhold i alle lag med unntak av en sandbanke med mellomsand. Arealet som skal jordflyttes er lite, men kan brukes til nydyrking for å utvide eksisterende jordbruksareal, eller for jordforbedring på grunnlendt jorde. Dette kan gi større sammenhengende jorder med stor driftsverdi.
Forfattere
Till SeehusenSammendrag
Det er ikke registrert sammendrag
Forfattere
Michel VerheulSammendrag
Det er ikke registrert sammendrag