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dc.contributor.authorBarrio, Isabel C.
dc.contributor.authorLindén, Elin
dc.contributor.authorte Beest, Mariska
dc.contributor.authorOlofsson, Johan
dc.contributor.authorRocha, Adrian
dc.contributor.authorSoininen, Eeva M
dc.contributor.authorAlatalo, Juha M.
dc.contributor.authorAndersson, Tommi
dc.contributor.authorAsmus, Ashley
dc.contributor.authorBoike, Julia
dc.contributor.authorBråthen, Kari Anne
dc.contributor.authorBryant, John P.
dc.contributor.authorBuchwal, Agata
dc.contributor.authorBueno, C. Guillermo
dc.contributor.authorChristie, Katherine S.
dc.contributor.authorDenisova, Yulia V.
dc.contributor.authorEgelkraut, Dagmar
dc.contributor.authorEhrich, Dorothee
dc.contributor.authorFishback, LeeAnn
dc.contributor.authorForbes, Bruce C.
dc.contributor.authorGartzia, Maite
dc.contributor.authorGrogan, Paul
dc.contributor.authorHallinger, Martin
dc.contributor.authorHeijmans, Monicque M.P.D.
dc.contributor.authorHik, David S.
dc.contributor.authorHofgaard, Annika
dc.contributor.authorHolmgren, Milena
dc.contributor.authorHøye, Toke T.
dc.contributor.authorHuebner, Diane C.
dc.contributor.authorJonsdottir, Ingibjørg
dc.contributor.authorKaarlejärvi, Elina
dc.contributor.authorKumpula, Timo
dc.contributor.authorLange, Cynthia Y.M.J.G.
dc.contributor.authorLange, Jelena
dc.contributor.authorLévesque, Esther
dc.contributor.authorLimpens, Juul
dc.contributor.authorMacias-Fauria, Marc
dc.contributor.authorMyers-Smith, Isla
dc.contributor.authorVan Nieukerken, Erik J.
dc.contributor.authorNormand, Signe
dc.contributor.authorPost, Eric S.
dc.contributor.authorSchmidt, Niels Martin
dc.contributor.authorSitters, Judith
dc.contributor.authorSkoracka, Anna
dc.contributor.authorSokolov, Alexander
dc.contributor.authorSokolova, Natalya
dc.contributor.authorSpeed, James David Mervyn
dc.contributor.authorStreet, Lorna E.
dc.contributor.authorSundqvist, Maja K.
dc.contributor.authorSuominen, Otso
dc.contributor.authorTananaev, Nikita
dc.contributor.authorTremblay, Jean-Pierre
dc.contributor.authorUrbanowicz, Christine
dc.contributor.authorUvarov, Sergey A.
dc.contributor.authorWatts, David
dc.contributor.authorWilmking, Martin
dc.contributor.authorWookey, Philip A.
dc.contributor.authorZimmermann, Heike H.
dc.contributor.authorZverev, Vitali
dc.contributor.authorKozlov, Mikhail V.
dc.date.accessioned2018-01-08T14:16:57Z
dc.date.available2018-01-08T14:16:57Z
dc.date.created2017-06-20T13:35:27Z
dc.date.issued2017
dc.identifier.citationPolar Biology. 2017, Published ahead of print 1-14.nb_NO
dc.identifier.issn0722-4060
dc.identifier.urihttp://hdl.handle.net/11250/2476289
dc.description.abstractChronic, low intensity herbivory by invertebrates, termed background herbivory, has been understudied in tundra, yet its impacts are likely to increase in a warmer Arctic. The magnitude of these changes is however hard to predict as we know little about the drivers of current levels of invertebrate herbivory in tundra. We assessed the intensity of invertebrate herbivory on a common tundra plant, the dwarf birch (Betula glandulosa-nana complex), and investigated its relationship to latitude and climate across the tundra biome. Leaf damage by defoliating, mining and gall-forming invertebrates was measured in samples collected from 192 sites at 56 locations. Our results indicate that invertebrate herbivory is nearly ubiquitous across the tundra biome but occurs at low intensity. On average, invertebrates damaged 11.2% of the leaves and removed 1.4% of total leaf area. The damage was mainly caused by external leaf feeders, and most damaged leaves were only slightly affected (12% leaf area lost). Foliar damage was consistently positively correlated with mid-summer (July) temperature and, to a lesser extent, precipitation in the year of data collection, irrespective of latitude. Our models predict that, on average, foliar losses to invertebrates on dwarf birch are likely to increase by 6–7% over the current levels with a 1 °C increase in summer temperatures. Our results show that invertebrate herbivory on dwarf birch is small in magnitude but given its prevalence and dependence on climatic variables, background invertebrate herbivory should be included in predictions of climate change impacts on tundra ecosystems.nb_NO
dc.language.isoengnb_NO
dc.publisherSpringer Verlagnb_NO
dc.titleBackground invertebrate herbivory on dwarf birch (Betula glandulosa-nana complex) increases with temperature and precipitation across the tundra biomenb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber1-14nb_NO
dc.source.volumePublished ahead of printnb_NO
dc.source.journalPolar Biologynb_NO
dc.identifier.doi10.1007/s00300-017-2139-7
dc.identifier.cristin1477542
dc.relation.projectNorges forskningsråd: 244557nb_NO
dc.description.localcodeThis is a post-peer-review, pre-copyedit version of an article published in [Polar Biology]. Locked until 19.6.2018 due to copyright restrictions. The final authenticated version is available online at: https://link.springer.com/article/10.1007%2Fs00300-017-2139-7nb_NO
cristin.unitcode194,31,10,0
cristin.unitnameInstitutt for naturhistorie
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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