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dc.contributor.author Telling, Jon
dc.contributor.author Anesio, Alexandre M.
dc.contributor.author Tranter, Martyn
dc.contributor.author Irvine-fynn, Tristram
dc.contributor.author Hodson, Andy
dc.contributor.author Butler, Catriona
dc.contributor.author Wadham, Jemma
dc.date.accessioned 2011-10-25T11:57:35Z
dc.date.available 2011-10-25T11:57:35Z
dc.date.issued 2011-09
dc.identifier.citation Telling , J , Anesio , A M , Tranter , M , Irvine-fynn , T , Hodson , A , Butler , C & Wadham , J 2011 , ' Nitrogen fixation on Arctic glaciers, Svalbard ' Journal of Geophysical Research: Biogeosciences , vol 116 , no. G3 , G03039 . , 10.1029/2010JG001632 en
dc.identifier.issn 2169-8961
dc.identifier.other PURE: 171834
dc.identifier.other dspace: 2160/7622
dc.identifier.uri http://hdl.handle.net/2160/7622
dc.description Telling, J., Anesio, A. M., Tranter, M., Irvine-Fynn, T., Hodson, A., Butler, C., Wadham, J. (2011). Nitrogen fixation on Arctic glaciers, Svalbard. Journal of Geophysical Research-Biogeosciences, 116, Article Number: G03039. en
dc.description.abstract Glacier surfaces contain a wide diversity of microorganisms and can host a range of microbial activities. However, microbial nutrient cycling on glaciers is poorly understood. This study is the first to document nitrogen fixation (nitrogenase activity) on glaciers and demonstrate its importance in supporting microbial growth. Rates of nitrogen fixation (nitrogenase activity) in cryoconite holes on three valley glaciers in Svalbard ranged from <2.0 to 99.9 mu mol ethylene m(-2) d(-1) with rates inversely correlated to concentrations of available inorganic nitrogen. Annual inputs of nitrogen by nitrogen fixation on a glacier catchment scale are more than 2 orders of magnitude lower than the combined nitrogen inputs from snowmelt and rain. However, nitrogen fixation can be important for supporting microbial growth on the glaciers during the middle to late melt season after the snowline has retreated upslope. en
dc.format.extent 8 en
dc.language.iso eng
dc.relation.ispartof Journal of Geophysical Research: Biogeosciences en
dc.subject Arctic en
dc.subject glacier en
dc.subject life in extremes en
dc.subject microbial growth en
dc.subject nitrogen fixation en
dc.title Nitrogen fixation on Arctic glaciers, Svalbard en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1029/2010JG001632
dc.contributor.institution Institute of Geography & Earth Sciences en
dc.contributor.institution Centre for Glaciology en
dc.description.status Peer reviewed en


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