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.
2014
Authors
Syed Waqas Hassan Mohammad Tahir Waheed Martin Müller Jihong Liu Clarke Zabta Khan Shimwari Andreas G. LösslAbstract
No abstract has been registered
Authors
Årolilja Svedal JørgensrudAbstract
Norwegian agriculture is undergoing rapid structural changes leading to larger farm units and fewer farms, altering the context of farming and the capacity to respond to change. At the same time, climate change is manifesting as seasonal changes, warmer temperatures, and increased precipitation. This study applied a combination of contextual vulnerability and double exposure frameworks to assess current adaptive capacity and vulnerability to the combined effects of climate change and structural change in a rural community in Western Norway. This study employed a triangulation of research methods, covering case study interviews, informal observations and secondary data analysis, to get insight into the process of adaptation and deepen the understanding of how adaptive responses feed back on vulnerability and future adaptive capacity. The objective of this study was to identify to what extent there is a disparity between structural changes in Norwegian farming and building climate adaptive capacity in agriculture. It is assumed that developed countries such as Norway have a high capacity to adapt to climate variability and change. However, this study found that farmers are vulnerable to changing climatic conditions because socioeconomic and political processes of change undermine climate adaptive capacity. Results further suggest that all farmer types, independent of scale, production type, values, and size, are to some degree vulnerable to a diminishing farming community due to the contagious nature of farm closures and lack of understanding among non-farmers. Moreover, this study found that the way in which farmers currently respond to other processes of change affect long-term adaptability of individual farm households and farming communities to future climate change. Policymakers should encourage a diversity of farm sizes rather than focusing on increasing production on a few large farms, particularly in the context of Western Norway where there are certain physical and social limits to the expansion of production that are determined by local contextual conditions such as topography, climate, and the culture of farming.
Authors
A. Lakshmanan V. Geethalakshmi R. Ilangovan Adam Paruch Anne-Grete Buseth Blankenberg Sekhar Udaya NagothuAbstract
No abstract has been registered
Abstract
No abstract has been registered
Abstract
The spring and the summer growth of an organic grass-clover sward were preserved as extensively and restrictedly fermented silages in laboratory silos.The aim was to develop and test the hypothesis that such crops contribute complementary energy and protein qualities that can be exploited in mixed rations. The summer growth, containing 76% red clover, contributed more, and more stable crude protein than the spring growth, which was dominated by grasses. Nevertheless, when preserved as silage, summer growth supplied less metabolizable protein and net energy lactation because of its lower digestibility. Lower feed value remains to be validated in feeding experiments, and the quality of regrowth silages may also be improved by more frequent or appropriate timing of harvests. Restricted fermentation obtained by application of formic acid improved energy and protein preservation.
Authors
Maria Bjørkman Ishita Ahuja Annette Folkedal Schjøll Nicole Van Dam Atle M. Bones Richard MeadowAbstract
No abstract has been registered
Authors
Alexander Kopatz Rune Andreassen Hans Geir Eiken Siv Aarnes Camilla Tobiassen Rolf Randa Steinar Wikan Snorre HagenAbstract
Knowledge on the number of female brown bears, especially reproducing females, is important for the wildlife management. One of the largest and densest populations of brown bears in Norway is located in Sør-Varanger, Finnmark, Northern Norway. Observations of females with cubs are reported regularly in the region. Information on the relatedness among individuals is often unknown as well as specifics on the number of reproductions and relatedness among females within this population. We have utilized genetic data originating from feces and hair samples collected in Sør-Varanger in the years 2004-2014 to investigate female brown bear localities. In the same period, personnel from the Norwegian State Nature Inspectorate (SNO) have observed 9 female brown bears with potential female cubs (a priori probability of 0.5). Sampling areas of those female brown bears and their potential offspring showed substantial geographical vicinity suggesting overlapping home ranges. We then calculated the likelihood ratios for these relationships using the forensic software Familias for 18-mother-female cub relationships. For 10 of 18 such relationships, the genetic relationship between mother and female cub were confirmed as their observation in the field was suggestive of. Of the initially observed 9 female bears, 6 have produced 10 female cubs, which here could be confirmed by genetic methods. The remaining 3 females were not excluded to be mothers to their potential cubs, but these relationships cannot be confirmed without additional DNA analyses. Another family relationship could also be confirmed between two observed female bears, but the type of relationship could not be determined.
Abstract
This study compared the forage quality of Festulolium entries of festucoid (Hykor) and loloid attributes (Felopa and Norwegian candivars) with major cultivars of the parent species perennial ryegrass and meadow fescue, and with timothy. Forage NDF, iNDF, kdNDF and DDM were analysed at vegetative stage, early heading, heading and anthesis during spring growth (SG) and two subsequent regrowths over two production years at two locations in Norway. NDF and iNDF increased and kdNDF and DDM decreased with advancing maturity, mostly expressed in SG, with negative correlations between DDM and NDF and iNDF and ADL and strong positive correlations with kdNDF. In SG, across years and locations, the content of NDF at heading stage was 30% higher and iNDF 400% higher in stems than in leaves, while stem kdNDF was about 50% of that in leaves. In general, timothy cv. Grindstad and Festulolium cv. Hykor had the highest NDF and iNDF and the lowest kdNDF values. Loloid entries of Festulolium were quite similar to perennial ryegrass, although the tetraploid entry proved better than the others with respect to forage quality. Regarding nutritive value, the festucoid and loloid types of Festulolium should be considered separate groups. The effect of year was more pronounced than that of location, for which the ranking of entries was quite similar. Loloid Festulolium is prone to winter damage and, although it has higher nutritive value than the parent species, its use will depend on the conditions for winter survival.
Authors
Einar StrandAbstract
No abstract has been registered
Abstract
No abstract has been registered