caa a22 4500 445367261 CHVBK 20180317142934.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s00484-010-0333-1 doi (NATIONALLICENCE)springer-10.1007/s00484-010-0333-1 Does temperature regime govern the establishment of Heterobasidion annosum in Scandinavia? [Elektronische Daten] [Johanna Witzell, Mattias Berglund, Jonas Rönnberg] We explored the reasons underlying the biogeographic distribution patterns of the economically important, wood-rotting basidiomycete Heterobasidion annosum in Sweden. Despite the commonness of suitable host trees, Heterobasidion annosum has not been recorded in the north of Sweden, whereas its relative, H. parviporum, is present throughout the country. To test the hypothesis that H. annosum has not spread to the north because of the effect of climate, mainly differences in the general temperature regime, we inoculated Norway spruce stumps and standing trees with H. annosum and H. parviporum at six field sites, three in the south and three in the north of Sweden. Three strains of both species were used in random combinations, so that each selected stump and tree was inoculated with both species at the same time. At 2 and 10months after the inoculations, we compared the frequencies of detection of H. annosum and H. parviporum colonies at different distances from inoculation points in the stumps and in trees. The H. annosum colonies were detected only infrequently on disks cut from the inoculated stumps (0-4% of re-isolations) in both areas, whereas H. parviporum was detected much more frequently (26-47% of re-isolations). In standing trees, colonies belonging to H. annosum could be detected up to 210cm (south) and 80cm (north) and those belonging to H. parviporum up to 210cm (south) and 140cm (north) above the inoculation points. Our results suggest that difference in temperature regime does not provide an explanation for the distribution limit of H. annosum. ISB, 2010 Heterobasidion spp nationallicence Norway spruce nationallicence Forest health nationallicence Climate change nationallicence Species distribution nationallicence Witzell Johanna Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, P.O. Box49, SE-230 53, Alnarp, Sweden aut Berglund Mattias Skogssällskapets Fastighets AB, Box5083, 402 22, Göteborg, Sweden aut Rönnberg Jonas Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, P.O. Box49, SE-230 53, Alnarp, Sweden aut International Journal of Biometeorology Springer-Verlag 55/3(2011-05-01), 275-284 0020-7128 55:3<275 2011 55 484 https://doi.org/10.1007/s00484-010-0333-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00484-010-0333-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Witzell Johanna Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, P.O. Box49, SE-230 53, Alnarp, Sweden aut NATIONALLICENCE 700 1- Berglund Mattias Skogssällskapets Fastighets AB, Box5083, 402 22, Göteborg, Sweden aut NATIONALLICENCE 700 1- Rönnberg Jonas Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, P.O. Box49, SE-230 53, Alnarp, Sweden aut NATIONALLICENCE 773 0- International Journal of Biometeorology Springer-Verlag 55/3(2011-05-01), 275-284 0020-7128 55:3<275 2011 55 484 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer