Woodland on the western fringe: Irish oak wood diversity and the challenges of conservation

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Abstract
Irish oakwoods are sparsely distributed and generally small in extent. The woodland flora is depauperate compared to Great Britain in terms of flowering plants but quite rich in Oceanic ferns, bryophytes and lichens. It includes a few distinctive species, e.g. the Mediterranean-Atlantic Arbutus unedo. Remnants of ancient woodland survive at scattered locations; they usually contain old coppice stools, or occasionally pollards. Variation in the woodland plant community reflects an edaphic gradient from strongly acid to base-rich, a hydrological gradient from well-drained to waterlogged and a climatic gradient in degree of Oceanicity. The greatest conservation problems facing Irish oak-woods are overgrazing and invasive alien species, chiefly Rhododendron ponticum; to tackle these effectively, greater public concern is required.