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Range characteristics and productivity determinants for reindeer husbandry in Sweden

Lundqvist, Henrik (2007). Range characteristics and productivity determinants for reindeer husbandry in Sweden. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae, 1652-6880 ; 2007:100
ISBN 978-91-576-7399-2
[Doctoral thesis]

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Factors expected to affect reindeer productivity, and their spatial and temporal variation within the reindeer husbandry area in Sweden, were examined through multivariate statistical analyses. Data for the studies were extracted from different mapped databases and statistics from the herding districts. Initially 37 variables presumed to affect reindeer productivity were derived, quantifying variation in topography, climate, snow conditions, insect harassment, vegetation, forage abundance and qualities, and fragmentation of the ranges. A method was proposed, termed ‘reachability’, to quantify in cost-benefit terms the available grazing resources in relation to infrastructural fragmentation. The range-related variables were mapped for the entire reindeer husbandry area on a raster scale of 100 km2. The 37 variables were reduced to 15 using stepwise principal component analyses. These were thereafter used for characterisation of the reindeer herding ranges and for zonation of the Swedish reindeer herding area into seven zones. Furthermore, the 51 reindeer herding districts were divided into 10 groups with the help of cluster analyses. The remaining 15 variables were also related to productivity on the herding-district level with the help of canonical correlation analyses and structural equation modelling, in order to identify the important productivity determining factors, both in spatial and temporal scales. Larger variation in productivity was found between herding districts than between years. Different variables were found important for the between-district and within-district productivity variations, where season lengths and animal densities were significant at both scales. Other important factors were terrain ruggedness, insect harassment, calf slaughter and animal condition previous year. Snow conditions, disturbances and forage quality were not found to have large impact on productivity on this scale. These factors, however, may have been counteracted by husbandry measures and were therefore not easily detectable in relation to slaughter statistics. The most important environmental factors affecting reindeer productivity were used to suggest an ultimate grouping of herding districts into seven administrative groups for administrative planning and management purposes.

Authors/Creators:Lundqvist, Henrik
Title:Range characteristics and productivity determinants for reindeer husbandry in Sweden
Series Name/Journal:Acta Universitatis Agriculturae Sueciae
Year of publishing :October 2007
Number of Pages:47
ALLLundqvist, H. 2007. Ecological cost-benefit modelling of herbivore habitat quality degradation due to range fragmentation – Transaction in GIS 11(5): 743-761. Lundqvist, H., Norell, L. & Danell, Ö. 2007. Multivariate characterisation of environmental conditions for reindeer husbandry in Sweden – Rangifer 27 (1): 3-21. Lundqvist, H. & Danell, Ö. 2007. Multivariate clustering of reindeer herding districts in Sweden according to range prerequisites for reindeer husbandry – Rangifer 27 (2): xx-xx. (in press) Lundqvist, H., Norell, L. & Danell, Ö. 2007. Relationships between biotic and abiotic range characteristics and productivity of reindeer husbandry in Sweden (manuscript)
Place of Publication:Uppsala
ISBN for printed version:978-91-576-7399-2
Publication Type:Doctoral thesis
Full Text Status:Public
Agrovoc terms:reindeer, production factors, cost benefit analysis, animal husbandry, statistical methods, sweden
Keywords:Rangifer t. tarandus, multivariate analyses, PCA, CCA, SEM, fragmentation, reachability, density dependence, climate, forage, ruggedness, insect harassment, animal condition, ice-crust formation
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ID Code:1577
Department:?? 7044 ??
Deposited By: Henrik Lundqvist
Deposited On:01 Oct 2007 00:00
Metadata Last Modified:02 Dec 2014 10:12

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