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Forest defoliator outbreaks alter nutrient cycling in northern waters.

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cam.issuedOnline2021-11-03
dc.contributor.authorWoodman, Samuel G
dc.contributor.authorKhoury, Sacha
dc.contributor.authorFournier, Ronald E
dc.contributor.authorEmilson, Erik JS
dc.contributor.authorGunn, John M
dc.contributor.authorRusak, James A
dc.contributor.authorTanentzap, Andrew J
dc.contributor.orcidWoodman, Samuel G [0000-0001-9725-5867]
dc.contributor.orcidFournier, Ronald E [0000-0001-5833-4677]
dc.contributor.orcidEmilson, Erik JS [0000-0002-1516-9728]
dc.contributor.orcidRusak, James A [0000-0002-4939-6478]
dc.contributor.orcidTanentzap, Andrew J [0000-0002-2883-1901]
dc.date.accessioned2022-01-06T12:56:11Z
dc.date.available2022-01-06T12:56:11Z
dc.date.issued2021-11-03
dc.date.updated2022-01-06T12:56:10Z
dc.description.abstractInsect defoliators alter biogeochemical cycles from land into receiving waters by consuming terrestrial biomass and releasing biolabile frass. Here, we related insect outbreaks to water chemistry across 12 boreal lake catchments over 32-years. We report, on average, 27% lower dissolved organic carbon (DOC) and 112% higher dissolved inorganic nitrogen (DIN) concentrations in lake waters when defoliators covered entire catchments and reduced leaf area. DOC reductions reached 32% when deciduous stands dominated. Within-year changes in DOC from insect outbreaks exceeded 86% of between-year trends across a larger dataset of 266 boreal and north temperate lakes from 1990 to 2016. Similarly, within-year increases in DIN from insect outbreaks exceeded local, between-year changes in DIN by 12-times, on average. As insect defoliator outbreaks occur at least every 5 years across a wider 439,661 km2 boreal ecozone of Ontario, we suggest they are an underappreciated driver of biogeochemical cycles in forest catchments of this region.
dc.description.sponsorshipNatural Environment Research Council (NE/L006561/1) Ontario Centres of Excellence (OCE/27649) Natural Sciences and Engineering Research Council of Canada (NSERC/509182-17)
dc.identifier.doi10.17863/CAM.79664
dc.identifier.eissn2041-1723
dc.identifier.issn2041-1723
dc.identifier.otherPMC8566564
dc.identifier.other34732733
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/332218
dc.languageeng
dc.language.isoeng
dc.publisherSpringer Science and Business Media LLC
dc.publisher.urlhttp://dx.doi.org/10.1038/s41467-021-26666-1
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceessn: 2041-1723
dc.sourcenlmid: 101528555
dc.subjectAnimals
dc.subjectBiomass
dc.subjectCarbon
dc.subjectClimate Change
dc.subjectDisease Outbreaks
dc.subjectEcology
dc.subjectEcosystem
dc.subjectForests
dc.subjectInsecta
dc.subjectLakes
dc.subjectNutrients
dc.subjectOntario
dc.subjectPlant Diseases
dc.titleForest defoliator outbreaks alter nutrient cycling in northern waters.
dc.typeArticle
dcterms.dateAccepted2021-10-07
prism.issueIdentifier1
prism.publicationNameNat Commun
prism.volume12
pubs.funder-project-idNatural Environment Research Council (NE/L006561/1)
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by/4.0/
rioxxterms.versionVoR
rioxxterms.versionofrecord10.1038/s41467-021-26666-1

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