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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.date.accessioned2017-11-23T07:56:24Z
dc.date.available2017-11-23T07:56:24Z
dc.date.issued2017-12-01
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 experimenten_US
dc.descriptionSource at <a href=http://dx.doi.org/10.1016/j.foreco.2017.09.027> http://dx.doi.org/10.1016/j.foreco.2017.09.027 </a>en_US
dc.identifier.citationVindstad OPL, Jepsen JU, Klinghardt, Ek M, Ims RA. Salvage logging of mountain birch after geometrid outbreaks: Ecological context determines management outcomes. Forest Ecology and Management. 2017;405:81-91en_US
dc.identifier.cristinIDFRIDAID 1496305
dc.identifier.doi10.1016/j.foreco.2017.09.027
dc.identifier.issn0378-1127
dc.identifier.issn1872-7042
dc.identifier.urihttps://hdl.handle.net/10037/11765
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalForest Ecology and Management
dc.relation.projectIDEgen institusjon: Norwegian institute for nature research (NINA)en_US
dc.relation.projectIDEgen institusjon: University of Tromsøen_US
dc.relation.projectIDNorges forskningsråd: xxxxxxen_US
dc.relation.projectIDAndre: Norden Top-Level Initiative Effect studies and adaptation...en_US
dc.relation.projectIDAndre: County Governor of Finnmarken_US
dc.relation.projectIDAndre: The Fram Centreen_US
dc.relation.projectIDAndre: Finnmark Estate agencyen_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.subjectVDP::Mathematics and natural scienses: 400::Zoology and botany: 480en_US
dc.titleSalvage logging of mountain birch after geometrid outbreaks: Ecological context determines management outcomesen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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