Basic BiogeographyFirst published in 1985. This is the is the second edition of a study looking at ecology and biogeography with updated chapters including current research. It starts with the with the study of plants to gain an understanding of the complexities of ecological relationships. |
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Page 117
... natural ecosystems usually exhibit complex structural and functional relationships , high species diversity , niche diversification and many homeo- static mechanisms . Man , on the other hand , in modifying an existing ecosystem for his ...
... natural ecosystems usually exhibit complex structural and functional relationships , high species diversity , niche diversification and many homeo- static mechanisms . Man , on the other hand , in modifying an existing ecosystem for his ...
Page 124
... natural and semi - natural examples ? We can justify the effort and expenses of conservation on several grounds : scientific , economic , aesthetic and ethical . Aesthetic and ethical views are based on highly personal interpretations ...
... natural and semi - natural examples ? We can justify the effort and expenses of conservation on several grounds : scientific , economic , aesthetic and ethical . Aesthetic and ethical views are based on highly personal interpretations ...
Page 176
... natural processes . However , most natural changes are usually spread over many years , giving the community time to adjust . There are , however , natural catastrophes such as volcanic eruptions , droughts , floods or very severe ...
... natural processes . However , most natural changes are usually spread over many years , giving the community time to adjust . There are , however , natural catastrophes such as volcanic eruptions , droughts , floods or very severe ...
Contents
Introduction | 3 |
Initial approaches to vegetation study | 12 |
Initial approaches to soil study | 34 |
Copyright | |
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acid agricultural animals approach areas biogeography birch Britain British Isles brown earths bryophyte Cairngorm Calluna cations cent changes chemical clay climatic climax vegetation complex conifers conservation coypus crop cycle deciduous deer disturbance dominant Ecol ecology ecosystem energy environment environmental erosion example factors fire Flandrian forest Forestry Forestry Commission gley soils grass grazing ground flora growth habitat heather herbivores horizon humus important increase influence input insect land landscape layer leached lichen litter mainly methods mineral moorland moors mountain natural nutrients oakwood occur organic parent material pattern peat pest pine pinewood Pinus plant communities podzol pollen population present PRINT#3 production quadrats Quercus Quercus petraea recent region sample Scotland Scots pine Scottish Highlands seed seedlings shrubs slopes species structure surface Table temperature tree-line trees trophic level tropical upland values vegetation wood woodland Zealand zone