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dc.contributor.authorVindstad, Ole Petter Laksforsmo
dc.contributor.authorJepsen, Jane Uhd
dc.contributor.authorKlinghardt, Moritz
dc.contributor.authorEk, Malin
dc.contributor.authorIms, Rolf Anker
dc.coverage.spatialsubarctic Norway, Luftjok, Tana, Finnmark, Bugøyfjord, Sør-Varangernb_NO
dc.identifier.citationForest Ecology and Management. 2017, 405 81-91.nb_NO
dc.description.abstractOutbreaks of pest insects occasionally cause mortality of entire forest stands. Salvage logging of affected stands is the most common management response to such events. Logging may aid stand recovery by increasing the production and establishment of saplings, or stimulating the production of basal sprouts in sprouting tree species. However, the outcome of logging may depend on the ecological context in which it is implemented, with both herbivory and local growing conditions being potentially important factors. We conducted a field experiment to assess how logging affects recovery by saplings and sprouts in stands of mountain birch that have been damaged by outbreaks of geometrid moths. The study was conducted at the two locations Luftjok and Bugøyfjord in subarctic Norway, where moth outbreaks have caused widespread mortality of mountain birch during the last two decades. Logging generally caused a strong increase in the production of basal sprouts, and also improved sprout growth in Luftjok, resulting in a substantial production of new stems in the logging plots at this location within the six-year period of the study. In Bugøyfjord, sprout growth was retarded in logging plots compared to controls, resulting in complete failure to produce new stems during the study period. This appears to have been caused by ungulate browsing, possibly in interaction with regional, geologically determined, gradients in growing conditions. The outcome of logging also depended on local site quality, with limited sprouting occuring in rich meadow type stands, which traditionally have been assumed to have low capacity for sprout production. Birch saplings were less abundant in logging plots than in controls by the end of the study, especially in Bugøyfjord, suggesting that logging did not improve sapling production. We conclude that logging may stimulate damaged mountain birch stands to recover by means of basal sprouting, but that the positive effects of logging may be reduced by browsing in some areas. Logging should also be practiced with care in rich meadow type stands, which have limited capacity for sprouting. Basal sprout Sapling Herbivory Stand recovery Site quality Field experimentnb_NO
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.subjectBasal sproutnb_NO
dc.subjectStand recoverynb_NO
dc.subjectSite qualitynb_NO
dc.subjectField experimentnb_NO
dc.titleSalvage logging of mountain birch after geometrid outbreaks: Ecological context determines management outcomesnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.subject.nsiVDP::Zoologiske og botaniske fag: 480nb_NO
dc.subject.nsiVDP::Zoology and botany: 480nb_NO
dc.source.journalForest Ecology and Managementnb_NO
dc.relation.projectEgen institusjon: Norwegian institute for nature research (NINA)nb_NO
dc.relation.projectEgen institusjon: University of Tromsønb_NO
dc.relation.projectNorges forskningsråd: xxxxxxnb_NO
dc.relation.projectAndre: Norden Top-Level Initiative Effect studies and adaptation...nb_NO
dc.relation.projectAndre: County Governor of Finnmarknb_NO
dc.relation.projectAndre: The Fram Centrenb_NO
dc.relation.projectAndre: Finnmark Estate agencynb_NO

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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal