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 27
... unit area , the same number of species present per unit area ( i.e. the density ) and are sampled by the same quadrat size . The only variable is the arrangement of the species ( i.e. the pattern ) from regular to random . Frequency ...
... unit area , the same number of species present per unit area ( i.e. the density ) and are sampled by the same quadrat size . The only variable is the arrangement of the species ( i.e. the pattern ) from regular to random . Frequency ...
Page 167
... unit is the result of all external conditions and influences directly affecting that unit . ( For ' experimental unit ' we may also read community , species or habitat under study as appropriate . ) 2. The many factors of the ...
... unit is the result of all external conditions and influences directly affecting that unit . ( For ' experimental unit ' we may also read community , species or habitat under study as appropriate . ) 2. The many factors of the ...
Page 285
... unit and an example in the form of a block diagram is presented as Fig . 9.6 . This association is related to the development of a scarp - and - vale landscape unit based on alternating hard and soft geological outcrops . At least eight ...
... unit and an example in the form of a block diagram is presented as Fig . 9.6 . This association is related to the development of a scarp - and - vale landscape unit based on alternating hard and soft geological outcrops . At least eight ...
Contents
Introduction | 3 |
Initial approaches to vegetation study | 12 |
Initial approaches to soil study | 34 |
Copyright | |
9 other sections not shown
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Common terms and phrases
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