Westland survival glycerol
The changes in higher plant diversity recorded at these sites through the Holocene show that c.
In the Cairngorms the maximum tree line elevation was prior to c. The macrofossil data from the Norwegian cores show that deglaciation in this region occurred earlier on the mountain summit than in the valley and that the maximum tree line elevation was during the interval 9100-4400 14C yr BP. 2% when the satellite imagery of the same area is used to provide a maximal species list. The mean surface sample macrofossil representation of species recorded in quadrats collected within 250 m of the lakes was c.
The diversity of present day vegetation in each region was estimated using both quadrat data and classified satellite images of the study areas. Two lake sediment cores from each area were also analysed to examine vegetation history and to estimate changes in biodiversity through the Holocene. The relationship between the diversity of higher plant macrofossils in surface sediments of lakes and the surrounding vegetation is examined in two mountain regions Grødalen in central Norway and the south-east Cairngorms in Scotland.