High altitude colonisation of the Northern Corries of Cairn Gorm by Scots pine (Pinus sylvestris)

Abstract Colonization by Scots pine of ground up to 850 m in the Northern Corries of Cairn Gorm has been taking place for about 40 years, since the fencing of lower ground for commercial forestry and reductions in grazing pressure from red deer. Sapling densities were monitored in 1984 and 1994 along fixed transects. The highest densities were generally in the western corries of the series, but there were also substantial numbers in the ski area and in the eastern corries. The highest densities above 650 m were in the ski area. There were more saplings on ridges than in corries, and fewer than expected in mire vegetation. Densities increased between 1984 and 1994, with a higher proportion of seedlings to saplings at the second analysis. The age structure showed a slow progression towards that recorded for the natural tree‐line at Creag Fhiaclach. Outside the part of the area designated as a Site of Special Scientific Interest it might be possible to speed up the progression by additional planting or other...

[1]  D. D. French,et al.  Recent development of high-altitude Pinus sylvestris scrub in the Northern Cairngorm mountains, Scotland , 1997 .

[2]  S. Harrison.  Changes in the Scottish climate , 1997 .

[3]  J. Mayes.  SPATIAL AND TEMPORAL FLUCTUATIONS OF MONTHLY RAIDFALL IN THE BRITISH ISLES AND VARIATIONS IN THE MID‐LATITUDE WESTERLY CIRCULATION , 1996 .

[4]  J. Mcclatchey.  Spatial and Attitudinal Gradients of Climate in the Cairngorms — Observations from Climatological and Automatic Weather Stations , 1996 .

[5]  C. Körner,et al.  Responses to recent climatewarming of Pinus sylvestris and Pinus cembra within their montane transition zone in the Swiss Alps , 1995 .

[6]  O. Engelmark.  Early post‐fire tree regeneration in a Picea‐Vaccinium forest in northern Sweden , 1993 .

[7]  L. Kullman.  Pine (Pinus sylvestris L.) Tree-limit Surveillance during Recent Decades, Central Sweden , 1993 .

[8]  L. Kullman.  Climatically induced regeneration patterns of marginal populations of Pinus sylvestris in northern Sweden. , 1992 .

[9]  D. Richardson,et al.  Determinants of Plant Distribution: Evidence from Pine Invasions , 1991, The American Naturalist.

[10]  J. Grace,et al.  Climate and growth of Pinus sylvestris at its upper altitudinal limit in Scotland: evidence from tree growth-rings. , 1990 .

[11]  N. Bayfield.  THE DYNAMICS OF HEATHER (CALLUNA VULGARIS) STRIPES IN THE CAIRNGORM MOUNTAINS, SCOTLAND , 1984 .

[12]  R. Cummins,et al.  Regeneration of Scots pine Pinus sylvestris at a natural tree-line in the Cairngorm Mountains, Scotland , 1982 .

[13]  N. V. Pears.  PRESENT TREE-LINES OF THE CAIRNGORM MOUNTAINS, SCOTLAND , 1967 .

[14]  J. H. Stevens,et al.  ALPINE SOILS OF NORTH-EAST SCOTLAND , 1966 .

[15]  D. A. Ratcliffe,et al.  Plant Communities of the Scottish Highlands , 1963 .

[16]  D. A. Ratcliffe,et al.  Plant Communities of the Scottish Highlands. A Study of Scottish Mountain, Moorland and Forest Vegetation. , 1963 .

[17]  D. N. Mcvean,et al.  A New Approach to Scottish Mountain Vegetation , 1957 .

[18]  E. W. Jones,et al.  THE ECOLOGY OF THE CAIRNGORMS PART 1. THE ENVIRONMENT AND THE ALTITUDINAL ZONATION OF THE VEGETATION , 1948 .