Basic Biogeography |
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Page 25
... whilst the latter strongly characterize that community . The following fidelity classes are described by Braun - Blanquet : Class 1. Strange species , rare or accidental intruders from another community or relics of a community that has ...
... whilst the latter strongly characterize that community . The following fidelity classes are described by Braun - Blanquet : Class 1. Strange species , rare or accidental intruders from another community or relics of a community that has ...
Page 84
... whilst the shag feeds mainly on fish and eels in the upper waters . ( Fig . 5.6 ) . It follows from what we have said that the more heterogenous the environment the more species it is likely to contain . With high species diversity many ...
... whilst the shag feeds mainly on fish and eels in the upper waters . ( Fig . 5.6 ) . It follows from what we have said that the more heterogenous the environment the more species it is likely to contain . With high species diversity many ...
Page 224
... whilst climatic changes have general significance for the formation of peats ( organic soils ) they may often operate through their influence on soil pro- cesses in such a way that any original relationship with climate becomes obscured ...
... whilst climatic changes have general significance for the formation of peats ( organic soils ) they may often operate through their influence on soil pro- cesses in such a way that any original relationship with climate becomes obscured ...
Contents
Introduction | 3 |
Initial approaches to vegetation study | 11 |
Initial approaches to soil study | 28 |
Copyright | |
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acidic agricultural animals approach areas become biogeography biotic birch Britain British Isles brown earths Cairngorm Cairngorm Mountains Calluna changes chemical clay climatic climax community climax vegetation complex conservation coypus crop cycle deciduous deer dominant Ecol ecologists ecosystem energy environment environmental erosion example fire forest Forestry Forestry Commission gley soils grass grazing ground flora growth heather herbivores horizon humus important increase influence insect land landscape layer leached lichen litter methods mineral moorland moors mountain native natural nutrients oakwoods occur organic parent material pattern peat pedogenic pest pine pinewood Pinus plagioclimax plant communities plant cover podzol pollen population present produce quadrat Quercus recent regeneration region sample Scotland Scots pine Scottish Highlands seedlings shrubs slopes soil types stage structure surface Table temperature timber-line tree-line upland usually variations vegetation whilst wood woodland zone