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Vegetation of an Upland Ecosystem: Cader Idris, Merionethshire

M. C. R. Edgell
Journal of Ecology
Vol. 57, No. 2 (Jul., 1969), pp. 335-359
DOI: 10.2307/2258384
Stable URL: http://www.jstor.org/stable/2258384
Page Count: 27
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Vegetation of an Upland Ecosystem: Cader Idris, Merionethshire
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Abstract

The vegetation of Cader Idris, Merionethshire, is classified according to techniques that have been widely employed in recent descriptive studies of British upland vegetation. Four major physiognomic/ecologic units (heaths, grasslands, bogs and mires) are distinguished, and the different community-types that constitute each of these units are described. The floristic and spatial variations of the vegetation suggest that soil moisture, soil base-status and biotic pressure are the main environmental variables. Comparison of the community-types on Cader Idris with those described in other areas indicates that there is a high degree of similarity between the vegetation of widely separated upland areas in Britain.

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