Offwell Woodland & Wildlife Trust

Promoting the British Countryside


About us Conservation Education Wildlife Habitats Maps Search Resources Sponsors


The Woodland Education Centre

Heathland Project Report

Report Introduction  Contents Summary

The Effects of Brushcutting

a) General

iii) Indirect - Distribution of St. John’s Wort

StJohns.jpg (24424 bytes)

Slender St. John’s Wort (Hypericum pulchrum) - (picture above) was widely distributed over the site initially. It was the fourth most dominant species in 1996 (Table). Its distribution on the site was very central in 1996, being concentrated in section 5 and decreasing outwards from this central point (Figures below). In subsequent years it has steadily declined in abundance and its distribution is becoming more skewed towards the northern areas of the project site (Figures below). The decline does not appear to show any patterns corresponding to any of the management regimes. It may be a consequence of brushcutting, either directly, or indirectly through consequential changes in environmental conditions, or increasing competition with other species such as grasses.

wpeB1.gif (4178 bytes)

wpeB2.gif (4704 bytes)

Mean % cover of St. John’s Wort. 1996 -1998

% Frequency of St. John’s Wort. 1996 - 1998

Continue to The Effects of management - the timing of brushcuttingRedArrow.gif (896 bytes)   

Heathland Restoration Project Report







 wpe22.gif (4238 bytes)

Other Lowland Heaths in East Devon