Ecological assessment of vegetation from a nature reserve using regional reference data and indicator scores |
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Authors: | Simon M Smart |
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Institution: | (1) Merlewood Research Station, Institute of Terrestrial Ecology, Grange-over-Sands, Cumbria, LA11 6LU, UK |
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Abstract: | A method is presented for ecological assessment of botanical sample data from a nature reserve network. The approach uses regional floristic survey data for a specific biotope as a context for spatial and temporal comparison. Assessments are based upon floristic similarity to reference vegetation types and indicator scores that summarise multivariate plant species data in relation to important environmental gradients. The approach was implemented as a software tool using floristic survey data for soligenous mires in a UK region. Plant community monitoring data were assessed against reference communities from this regional baseline to illustrate the potential advantages of the method. These include; (a) allowing links to be made between multivariate plant species data and measurements of environmental drivers, (b) providing realistic assessments of spatial and temporal differences because comparisons are against typical values of indicator scores for the region, (c) providing the scope for setting realistic criteria for vegetation monitoring. |
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Keywords: | biodiversity decision support systems Ellenberg values monitoring regional scale |
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