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Pattern and process in Norwegian upland grasslands: a functional analysis

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dc.contributor.author Vandvik, Vigdis
dc.contributor.author Birks, Harry John Betteley
dc.date.accessioned 2006-04-27T09:56:23Z
dc.date.available 2006-04-27T09:56:23Z
dc.date.issued 2002
dc.identifier.citation Journal of Vegetation Science 2002 13:123-134
dc.identifier.issn 1100-9233
dc.identifier.uri http://hdl.handle.net/1956/1160
dc.description.abstract Four classes of functional and morphological plant traits (FMT) – established strategies (the CSR scheme sensu Grime 1979), life-forms (sensu Raunkiaer 1934), morphology, and regenerative strategies – are used as tools for explaining vegetation gradients at summer farms in the mountains of western Norway. These farms are assembly points for free-ranging domestic grazers, and differ floristically and ecologically from the surrounding heath or woodland vegetation. Detrended Correspondence Analysis and Two-Way INdicator SPecies ANalysis are used to relate major gradients in a floristic data set from 12 summer farms to two sets of explanatory variables: (1) environmental variables representing physical factors, plot position, soils, and land-use, and (2) the four FMT classification schemes. The main floristic gradient parallels a spatial gradient from the centres of the farms to the surrounding vegetation. A functional interpretation based on the concurrent use of the two sets of explanatory variables suggests that the gradient is one of decreasing disturbance and increasing environmental stress caused by decreasing grazing and manure effects away from farms. Partial Canonical Correspondence Analysis is used to investigate the relationships between the four FMT classes. The four classification schemes are partially redundant, and do not represent different trends of specialisation within the landscape. There is no strong evidence for decoupling of the traits of the vegetative and regenerative phases within the data. The combination of general process-based theories and specific plant attribute responses enhances the generality and interpretability of the study. en
dc.format.extent 265105 bytes
dc.format.mimetype application/pdf
dc.language.iso eng en
dc.publisher Opulus Press en
dc.subject Disturbance en
dc.subject Ecological strategies en
dc.subject Grazing en
dc.subject Life-forms en
dc.subject Monte Carlo permutation tests en
dc.subject Ordination en
dc.subject Plant traits en
dc.subject Regeneration en
dc.subject Stress en
dc.title Pattern and process in Norwegian upland grasslands: a functional analysis en
dc.type Journal article en
dc.type Peer reviewed en
dc.subject.nsi VDP::Matematikk og Naturvitenskap: 400 no


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