Contents
CONTRIBUTORS TO VOLUME 1
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PBERACE - - -
Soil Arthropod Sampling
A . MACFADYEN
I. Introduction -
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11. Characteristic Sampling Requirements of Some Different Types of
Soil Arthropod Survey -
A. Statistical Aspects -
B. Laboratory Methods for Counting and Recording
IV. A Survey of Available Examination and Separation Processes -
A. The Examination of Soil with Animals in s i t ~ -
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B. Behaviour-TypeMethods -
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C. Mechanical Separation Methods taking advantage of Differential
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111. The Design and Execution of a Survey -
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Physical Properties of Animals and the Substratum -
V. The Choice of Complete Sampling Systems for Specific Purposes
VI. Summary and Conclusions
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References -
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The Method of Successive Approximation
in Descriptive Ecology
M. E. D. POORE
I. Introduction -
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11. The Classification of Vegetation
111. The Problem of Pattern -
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IV. Discussion of the Steps Used in the Phyto-Sociological Examination
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of Vegetation - -
A. The Choice of Stand and the Concept of Uniformity
B. DescriptiveMethods -
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C. Abstracts Units of Vegetation -
A. Biocoenose and Geobiocoenose -
B. Phylogeny of Plant Communities
C. Definition of Communities
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D. Physiognomic-Ecological or Floristic Classification?
ix
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V. Systems of Classification and Criteria for Defining Noda -
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V
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