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 74
... ( herbivores ) . These organisms , in turn , create new tissues as they grow and these become a source of energy for meat - eating animals ( carnivores ) . Animals which eat either plants or other animals ( omnivores ) thus have two areas ...
... ( herbivores ) . These organisms , in turn , create new tissues as they grow and these become a source of energy for meat - eating animals ( carnivores ) . Animals which eat either plants or other animals ( omnivores ) thus have two areas ...
Page 180
... Herbivores have the most direct influence on oakwood dynamics because they feed entirely on plant materials . We can conveniently divide the herbivores into two main groups : the invertebrates which live and feed on the oak itself ...
... Herbivores have the most direct influence on oakwood dynamics because they feed entirely on plant materials . We can conveniently divide the herbivores into two main groups : the invertebrates which live and feed on the oak itself ...
Page 197
... herbivores , those native and domesticated stock which freely range the grazings provided by our upland moors . The wild herbivores include red deer , mountain hares , red grouse and ptarmigan . Hares have not usually been cropped but ...
... herbivores , those native and domesticated stock which freely range the grazings provided by our upland moors . The wild herbivores include red deer , mountain hares , red grouse and ptarmigan . Hares have not usually been cropped but ...
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