Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
1997
Authors
Richard Frederic Wright Inger Aandahl Raastad Øyvind KasteAbstract
No abstract has been registered
Authors
Halvor SolheimAbstract
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Authors
Kåre Olav VennAbstract
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Authors
Naomi M. Saville Wenche E. Dramstad Gary L.A. Fry Sarah A. CorbetAbstract
This paper presents the results of a bumblebee mark-reobservation study conducted in a fragmented agricultural landscape, where bumblebee resources (forage, and probably also nest sites) exist mainly on scattered remnants of semi-natural habitat. The results show that reobservations of bumblebees marked while foraging were numerous and in general at short distances (less than 50 m) from where they were marked. In contrast, when bumblebees were marked at the nest, the numbers of reobservations were very low, even though monitoring of nest traffic showed the nest to be very active during reobservation walks. The results indicate that bumblebees do not necessarily forage close to their nest, and that caution is needed if foraging area and nest location are based solely on the observation of foragers
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No abstract has been registered
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Authors
Hans Fredrik Hoen Birger SolbergAbstract
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Authors
Inger Aandahl RaastadAbstract
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Authors
G.C. VanKooten A. Grainger E. Ley Gregg Marland Birger SolbergAbstract
Global climate change is about uncertainty related to ecological and economic processes, and political responses. It is about fairness and income distribution among nations, both now and in the future. It is a dynamic problem that involves national carbon transition functions, damage functions and discount rates. These issues form the basis of the current paper, which examines them from a conceptual point of view.