Basic BiogeographyBasic considerations. Introduction. Inital approaches to vegetation study. Inital approaches to soil study. Plant dynamics and the nature of vegetation. Ecosystems. Ecological factors and environmental variations. distubed ecosystems. Selected examples from the British Isles. The vegetation. The soils. The impact of man. |
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Page 129
... animals restricted to particular plants or plant communities . Some are restricted because of a highly specific food requirement or shelter need whilst many of the larger animals have a strongly developed territorial sense . For example ...
... animals restricted to particular plants or plant communities . Some are restricted because of a highly specific food requirement or shelter need whilst many of the larger animals have a strongly developed territorial sense . For example ...
Page 130
... animal is being looked upon by other animals as a possible source of food . The tracing of food webs and their demonstration in terms of energy flows tell us much about the animal components of an ecosystem and how they are organized ...
... animal is being looked upon by other animals as a possible source of food . The tracing of food webs and their demonstration in terms of energy flows tell us much about the animal components of an ecosystem and how they are organized ...
Page 138
... animals or between plants and animals . We know even less about man's part in influencing these relationships . Control methods Once the dangers of a pest outbreak are appreciated , precautions are normally taken in areas adjacent to ...
... animals or between plants and animals . We know even less about man's part in influencing these relationships . Control methods Once the dangers of a pest outbreak are appreciated , precautions are normally taken in areas adjacent to ...
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 birch Britain British Isles brown earths Cairngorm Cairngorm Mountains Calluna changes chemical clay climatic climax community climax vegetation complex 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 Highlands 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 spread stage structure surface Table temperature timber-line tree-line upland usually variations vegetation whilst wood woodland zone