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 IV. The forest associations 122 



1. Introduction 122 



2. Dry upland (Querents and Carya) forest association 124 



3. Artificial glade community in lowland forest 125 



4. Humid lowland (hard maple and red oak) forest association. . . . 126 



5. Animal association of a temporary stream 127 



Y. Eelation of the deciduous forest invertebrates to their environment .... 128 



1. Forest soil community 129 



2. The forest fungus community 135 



3. The forest undergrowth community 138 



4. The forest crown community 139 



5. The tree-trunk community 142 



6. The decaying wood community 148 



7. Interrelations within the forest association 157 



Ecologically annotated list: — 



I. Prairie invertebrates 158-201 



II. Forest invertebrates 201-238 



Bibliography 239-264 



