CONTENTS 



PAGE 



Preface vii 



Introduction by Professor Julian S. Huxley, M.A. ix 



Contents xix 



List of Plates xx 



List of Diagrams in the Text . . . . xxi 



CHAPTER 



I. Introduction i 



II. The Distribution of Animal Communities . . 5 



III. Ecological Succession 18 



IV. Environmental Factors 33 



V. The Animal Community 50 



VI. Parasites 71 



VII. Time and Animal Communities .... 83 



VIII. The Numbers of Animals . . ... . .101 



IX. Variations in the Numbers of Animals . . .127 



X. Dispersal 146 



XI. Ecological Methods 162 



XII. Ecology and Evolution 179 



Conclusion 188 



List of References . . ^ 192 



Index 201 



30404 



