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dc.contributor.authorButler, Orpheus M
dc.contributor.authorLewis, Tom
dc.contributor.authorRashti, Mehran Rezaei
dc.contributor.authorMaunsell, Sarah C
dc.contributor.authorElser, James J
dc.contributor.authorChen, Chengrong
dc.date.accessioned2019-09-09T23:54:14Z
dc.date.available2019-09-09T23:54:14Z
dc.date.issued2019
dc.identifier.issn0012-9658
dc.identifier.doi10.1002/ecy.2732
dc.identifier.urihttp://hdl.handle.net/10072/387131
dc.description.abstractDecadal‐scale increases in fire frequency have the potential to deplete ecosystems of essential nutrients and consequently impede nutrient‐limited biological processes via stoichiometric imbalance. Decomposition, a fundamental ecosystem function and strong driver of future fire occurrence, is highly sensitive to nutrient availability and is, therefore, particularly important in this context. Here we show that 40 yr of quadrennial (4yB) and biennial (2yB) prescribed burning result in severely P‐ and N‐depleted litter stoichiometry, respectively, relative to fire exclusion. These effects exacerbated the nutrient limitation of microbial activities, constraining litter decomposition by 42.1% (4yB) and 23.6% (2yB) relative to unburned areas. However, invertebrate‐driven decomposition largely compensated for the diminished capacity of micro‐organisms under 4yB, suggesting that invertebrates could have an important stabilizing influence in fire‐affected ecosystems. This effect was strongly positively coupled with the strength of microbial P‐limitation and was not obviously or directly driven by fire regime‐induced changes in invertebrate community assemblage. Together, our results reveal that high‐frequency fire regimes promote nutrient‐poor, carbon‐rich ecosystem stoichiometry and, in doing so, disrupt ecosystem processes and modify the relative functionality of micro‐organisms and invertebrates.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherWiley
dc.relation.ispartofissue7
dc.relation.ispartofjournalEcology
dc.relation.ispartofvolume100
dc.subject.fieldofresearchEcological Applications
dc.subject.fieldofresearchEcology
dc.subject.fieldofresearchEvolutionary Biology
dc.subject.fieldofresearchcode0501
dc.subject.fieldofresearchcode0602
dc.subject.fieldofresearchcode0603
dc.subject.keywordsScience & Technology
dc.subject.keywordsLife Sciences & Biomedicine
dc.subject.keywordsEnvironmental Sciences & Ecology
dc.subject.keywordsdecay
dc.titleThe stoichiometric legacy of fire regime regulates the roles of micro-organisms and invertebrates in decomposition
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationButler, OM; Lewis, T; Rashti, MR; Maunsell, SC; Elser, JJ; Chen, C, The stoichiometric legacy of fire regime regulates the roles of micro-organisms and invertebrates in decomposition, Ecology, 2019, 100 (7)
dcterms.dateAccepted2019-03-29
dc.date.updated2019-09-09T23:50:38Z
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2019 Ecological Society of America. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorMaunsell, Sarah C.
gro.griffith.authorChen, Chengrong
gro.griffith.authorButler, Orpheus M.
gro.griffith.authorRezaei Rashti, Mehran


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