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.
2013
Editors
Helmer BelboAbstract
Skilled, motivated and well-informed contractors today form the backbone of a professional, cost-effective, and environmentally friendly forest sector in the Nordic countries. This understanding forms the playground for policy makers, forestry certification bodies, forestry education, business standards and research in forest operations. The aim of this workshop is to provide a special forum for researchers, practitioners and other interested parties to get together in exchanging information, experiences and outlooks in the field of contractor forestry. The fundamental goal and our prime hope is that events like this will bring the Nordic-Baltic forest sector further in improving local and global competitiveness. These proceedings are a collection of abstracts that represent a range of issues being faced, and the status of research within the field of contractor forestry in participating countries. Contractor forestry is a term that includes both operating skills and business management acumen of forestry contractors, but also the formulation of the special environment in which they operate, not least the conditions set and information passed on by landowners, forest management companies, other supply chain actors, and the markets themselves. As such, it represents the whole spectrum of ‘service provision’ in the forestry sector – both the process of placing the work tasks on the market, successfully winning the contract, and carrying out the work in both an economically and environmentally sustainable way that promotes the long-term existence of professional contracting outfits. Not only is the Nordic forestry sector fully dependent on contractor forestry, but the region plays an important role in determining international trends in forest operations and the world closely watches developments and emulates many of them, as the CTL method continues to expand into new markets. This places special impetus on the importance of the research work being done in this field. We wish to thank the OSCAR coordinating committee for their constructive input, as well as all those who participated or contributed to making the seminar a success. We also would like to thank the Nordic Forest Research Cooperation Committee (SNS) for the financial support of the OSCAR2 network, and the Forestry Extension Institute at Honne who provided an exceptionally suitable environment and hosting for the workshop participants.
Authors
Sabine Rosner Jan Svetlik Kjell Andreassen Isabella Børja Lise Dalsgaard R Evans B Karlsson Mari Mette Tollefsrud Svein SolbergAbstract
No abstract has been registered
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No abstract has been registered
Abstract
Three methods for extracting DNA were tested on otoliths, scales, fins, and gill tissue from European whitefish [Coregonus lavaratus (L.)]. The aim was to find time-efficient and affordable ways to simultaneously extract DNA suitable for conservation genetic studies from a large number of samples and different tissues. A rapid low-cost method led to 97 % success of microsatellite amplification in otoliths and 100 % in scales. High amplification success was achieved with fin (97 %) and gill (99 %) tissue using a salt lysis-based protocol. A commercial extraction kit delivered good results with all tissues. The findings are useful for conservation genetic studies using both contemporary and archived samples.
Authors
Ivano Brunner Isabella Børja Lise Dalsgaard Gaby Deckmyn Alf Ekblad Douglas L. Godbold Irene Guerra Avalos Martin Lukac Karsten Kalbitz Kaie Kriiska Ivika Ostonen Andrea Schnepf Primož Simončič Elena VanguelovaAbstract
No abstract has been registered
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No abstract has been registered
Authors
Isabella Børja Douglas Lawrence Godbold Michael Bambrick Lise Dalsgaard Jan Svetlik Nina Elisabeth NagyAbstract
No abstract has been registered
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Authors
Trond Rafoss Jarle Skahjem John Atle Johansen Ståle Johannessen Sekhar Udaya Nagothu Inger Sundheim Fløistad Arild SlettenAbstract
No abstract has been registered
Abstract
Local climate conditions have a major influence on the biological decomposition of wood. To examine the influence of different temperature regimes on wood decay caused by the brown rot fungus Postia placenta in wood with differing natural durability, sapwood (sW) and heartwood (hW) of Scots pine, inoculated mini-blocks were incubated for up to 10 weeks at temperatures conducive or above optimal to wood decay. We profiled mass loss (ML) and wood composition, and accompanying changes in wood colonization and transcript level regulation of fungal candidate genes. The suppressive effect of suboptimal temperature on wood decay caused by P. placenta appeared more pronounced in Scots pine hW with increased durability than in sW with low decay resistance. The differences between sW and hW were particularly pronounced for cultures incubated at 30°C: unlike sW, hW showed no ML, poor substrate colonization and marker gene transcript level profiles indicating a starvation situation. As brown rot fungi show considerable species-specific variation in temperature optima and ability to mineralize components that contribute to wood durability, interactions between these factors will continue to shape the fungal communities associated to wood in service.