Basic Biogeography |
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Page 94
... factor varying in time and space and acting reciprocally with the other factors at the site . Although some progress has been made in assessing the significance of certain ecological factors on some individual species or communities ...
... factor varying in time and space and acting reciprocally with the other factors at the site . Although some progress has been made in assessing the significance of certain ecological factors on some individual species or communities ...
Page 95
... factor . But it is not as simple as this . Because factors interact , one factor may compensate for deficiencies in another factor ; some factors may be more critical at one stage in a species life cycle than at other times ...
... factor . But it is not as simple as this . Because factors interact , one factor may compensate for deficiencies in another factor ; some factors may be more critical at one stage in a species life cycle than at other times ...
Page 96
... factors in plant ecology . Indeed whole books have been devoted to studying just one factor in depth . Here we shall take two aspects only of the problem and consider these in some detail . Hopefully , these examples will illustrate the ...
... factors in plant ecology . Indeed whole books have been devoted to studying just one factor in depth . Here we shall take two aspects only of the problem and consider these in some detail . Hopefully , these examples will illustrate the ...
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