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dc.contributor.authorEvans, Jessicaen
dc.contributor.authorAmesbury, Matthew Jen
dc.contributor.authorRoland, Thomas Pen
dc.contributor.authorJones, Glyn Den
dc.contributor.authorConvey, Peteren
dc.contributor.authorGriffiths, Howarden
dc.contributor.authorHodgson, Dominic Aen
dc.contributor.authorCharman, Dan Jen
dc.date.accessioned2016-03-18T14:26:57Z
dc.date.available2016-03-18T14:26:57Z
dc.date.issued2016-03-22en
dc.identifier.citationRoyles et al. Oecologia (2016)en
dc.identifier.issn0029-8549
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/254572
dc.description.abstractThe stable isotope compositions of moss tissue water (δ$^{2}$H and δ$^{18}$O) and cellulose (δ$^{13}$C and δ$^{18}$O), and testate amoebae populations were sampled from 61 contemporary surface samples along a 600-km latitudinal gradient of the Antarctic Peninsula (AP) to provide a spatial record of environmental change. The isotopic composition of moss tissue water represented an annually integrated precipitation signal with the expected isotopic depletion with increasing latitude. There was a weak, but significant, relationship between cellulose δ$^{18}$O and latitude, with predicted source water inputs isotopically enriched compared to measured precipitation. Cellulose δ$^{13}$C values were dependent on moss species and water content, and may reflect site exposure to strong winds. Testate amoebae assemblages were characterised by low concentrations and taxonomic diversity, with $\textit{Corythion dubium}$ and $\textit{Microcorycia radiata}$ types the most cosmopolitan taxa. The similarity between the intra- and inter-site ranges measured in all proxies suggests that microclimate and micro-topographical conditions around the moss surface were important determinants of proxy values. Isotope and testate amoebae analyses have proven value as palaeoclimatic, temporal proxies of climate change, whereas this study demonstrates that variations in isotopic and amoeboid proxies between microsites can be beyond the bounds of the current spatial variability in AP climate.
dc.description.sponsorshipThe research was funded by the Natural Environment Research Council Antarctic Funding Initiative grant NE/H014896/ to DJC, PC, DAH and HG. PC, DAH and JR contribute to the BAS ‘Polar Science for Planet Earth’ research programme. Carbon isotope analyses were undertaken by Chris Kendrick at the NERC Isotope Geosciences Laboratory. Sample collection was supported by HMS Protector and HMS Endurance. Thanks to Iain Rudkin and Ashly Fusiarski for fieldwork support, to Adrian Dahood for water sample collection and to Sue Rouillard in the University of Exeter Geography drawing office for Figure 1.
dc.languageEnglishen
dc.language.isoenen
dc.publisherSpringer
dc.rightsAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectclimate changeen
dc.subject13Cen
dc.subject18Oen
dc.subjectprecipitationen
dc.subjectwater lineen
dc.subjectassemblageen
dc.titleMoss stable isotopes (carbon‑13, oxygen‑18) and testate amoebae reflect environmental inputs and microclimate along a latitudinal gradient on the Antarctic Peninsulaen
dc.typeArticle
dc.description.versionThis is the final version of the article. It first appeared from Springer via https://doi.org/10.1007/s00442-016-3608-3en
prism.endingPage945
prism.publicationDate2016en
prism.publicationNameOecologiaen
prism.startingPage931
prism.volume181en
dc.rioxxterms.funderNERC
dc.rioxxterms.projectidNE/H014896/
dcterms.dateAccepted2016-03-08en
rioxxterms.versionofrecord10.1007/s00442-016-3608-3en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2016-03-22en
dc.contributor.orcidEvans, Jessica [0000-0003-0489-6863]
dc.contributor.orcidGriffiths, Howard [0000-0002-3009-6563]
dc.identifier.eissn1432-1939
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idNERC (NE/H014632/1)
pubs.funder-project-idNERC (NE/M001946/1)
pubs.funder-project-idBBSRC (BB/I024518/1)


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's licence is described as Attribution 4.0 International (CC BY 4.0)