INDEX 



409 



Grasshopper, outbreaks, 174 



years, 198 

 Grasshoppers, lOS, 132, 199, 204, 252, 

 267, 274 

 meadow, 275 

 Grassland, 251-293 



binding dominants, 256, 257 

 binding influents, 257-260 

 CaHfornia prairie, 285-290 

 climate, 286, 287 

 dominants, 287 

 influents, 289, 290 

 nature and extent. 285, 286 

 proclimaxes, 288 

 subdominants, 287, 288 

 climate, 254-256 

 coastal prairie, 277-280 

 climate, 278, 279 

 dominants, 278, 279 

 influents, 280 



nature and extent, 277, 278 

 proclimaxes, 279, 280 

 serai stages, 280 

 subdominants, 279 

 desert plains, 280-285 

 climate, 281, 282 

 dominants, 282 

 influents, 283-285 

 nature and extent, 280, 281 

 proclimaxes, 283 

 subdominants, 287, 288 

 introduction, 251, 252 

 life forms and life habits, 252-254 

 map, 255 



mixed prairie, 260-269 

 climate, 262 

 dominants, 262, 203 

 influents, 264-266 

 nature and extent, 260-262 

 proclimaxes, 263, 264 

 reactions and coactions, 268, 269 

 river bottoms, 267 

 sand hills, 267, 268 

 serai stages, 266, 267 

 steep banks and ravines, 267 

 subdominants, 262 

 Palouse prairie, 290-293 

 climate, 290, 291 

 dominants, 291, 292 

 influents, 293 



Grassland, Palouse prairie, nature and 

 extent, 290, 291 

 proclimaxes, 292, 293 

 subdominants, 292 

 jiliysiognomy, 251 

 structure and unity, 256-260 

 true prairie, 269-277 

 climate, 269, 270 

 contacts, 276, 277 

 dominants, 270-272 

 influents, 273-275 

 nature and extent, 269 

 proclimaxes, 273 

 serai stages, 276 

 subdominants, 272, 273 

 Gravel bottoms, 311 

 Gray fox, 108 

 Gray squirrel, 276 

 Gray whale, 316 

 Grazing, 119-125, 238 

 Grazing coaction, 108 

 Grazing habit, 120 

 Great cats, 112 

 Great Lake trout, 307 

 Great Lakes, 306, 307 

 Great Plains, 228, 308 

 Grebe, 225 



Green tiger beetles, 276 

 Gregarious habit, 115 

 Ground beetles, 131, 266 

 Ground birds, 228 

 Ground squirrels, 265, 274, 289, 293 

 Grouse, 133 

 cycle, 174, 197 

 ruffed, 123 

 sage, 293 



sharptail, 174, 197 

 Growth, 31, 37 

 Growth forms, 53, 54 

 Giubs, 138 

 Grunt fish, 331 

 Gunnera, 139 

 Gutierrezia, 120 



Habitat, 26, 27, 329, 338 

 breeding, 252 

 choice, 242 

 relations, 254, 358 

 stream, 307-311 



