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dc.contributor.author Cornelissen, J. Hans C.
dc.contributor.author Quested, H. M.
dc.contributor.author Logestijn, R. S. P.
dc.contributor.author Perez-Harguindeguy, N.
dc.contributor.author Gwynn-Jones, Dylan
dc.contributor.author Diaz, S.
dc.contributor.author Callaghan, Terry V.
dc.contributor.author Press, M. C.
dc.contributor.author Aerts, Rien
dc.date.accessioned 2009-07-15T14:44:08Z
dc.date.available 2009-07-15T14:44:08Z
dc.date.issued 2006-03
dc.identifier.citation Cornelissen , J H C , Quested , H M , Logestijn , R S P , Perez-Harguindeguy , N , Gwynn-Jones , D , Diaz , S , Callaghan , T V , Press , M C & Aerts , R 2006 , ' Foliar pH as a new plant trait: can it explain variation in foliar chemistry and carbon cycling processes among subarctic plant species and types? ' Oecologia , vol 147 , no. 2 , pp. 315-326 . , 10.1007/s00442-005-0269-z en
dc.identifier.issn 0029-8549
dc.identifier.other PURE: 111773
dc.identifier.other dspace: 2160/2661
dc.identifier.uri http://hdl.handle.net/2160/2661
dc.description Cornelissen, J. H. C., Quested, H. M., Logestijn, R. S. P., Perez-Harguindeguy, N., Gwynn-Jones, D., Diaz, S., Callaghan, T. V., Press, M. C., Aerts, R. (2006). Foliar pH as a new plant trait: can it explain variation in foliar chemistry and carbon cycling processes among subarctic plant species and types?. Oecologia, 147, (2), 315-326. en
dc.description.abstract Plant traits have become popular as predictors of interspecific variation in important ecosystem properties and processes. Here we introduce foliar pH as a possible new plant trait, and tested whether (1) green leaf pH or leaf litter pH correlates with biochemical and structural foliar traits that are linked to biogeochemical cycling; (2) there is consistent variation in green leaf pH or leaf litter pH among plant types as defined by nutrient uptake mode and higher taxonomy; (3) green leaf pH can predict a significant proportion of variation in leaf digestibility among plant species and types; (4) leaf litter pH can predict a significant proportion of variation in leaf litter decomposability among plant species and types. We found some evidence in support of all four hypotheses for a wide range of species in a subarctic flora, although cryptogams (fern allies and a moss) tended to weaken the patterns by showing relatively poor leaf digestibility or litter decomposability at a given pH. Among seed plant species, green leaf pH itself explained only up to a third of the interspecific variation in leaf digestibility and leaf litter up to a quarter of the interspecific variation in leaf litter decomposability. However, foliar pH substantially improved the power of foliar lignin and/or cellulose concentrations as predictors of these processes when added to regression models as a second variable. When species were aggregated into plant types as defined by higher taxonomy and nutrient uptake mode, green-specific leaf area was a more powerful predictor of digestibility or decomposability than any of the biochemical traits including pH. The usefulness of foliar pH as a new predictive trait, whether or not in combination with other traits, remains to be tested across more plant species, types and biomes, and also in relation to other plant or ecosystem traits and processes. en
dc.format.extent 12 en
dc.language.iso eng
dc.relation.ispartof Oecologia en
dc.title Foliar pH as a new plant trait: can it explain variation in foliar chemistry and carbon cycling processes among subarctic plant species and types? en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1007/s00442-005-0269-z
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


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