406 



INDEX 



Diurnation, 35 

 Dobson larvae, 308 

 Dolichonyx (bobolink), 257 

 Dominance, 70, 235, 236, 321, 322 

 Dominant, 238, 302, 321 



organisms, 321 

 Dominants, 238, 239, 29, 99, 238-239, 

 240, 325, 330, 337, 351, 355 



binding, 76, 256, 257 



characteristics, 239 



in aquatic communities, 240, 241 



kinds, 238 



of California prairie, 287 



of coastal prairie, 278, 279 



of desert plains, 282 



of lake climaxes, 306, 307 



of mixed prairie, 262, 263 



of Palouse prairie, 291, 292 



of river climaxes, 300 



of true prairie, 270-272 

 Dominule, 238 

 Dorosoma cepedianum, 300 

 Douglas squirrel, 126 

 Doves, 214 

 Dragnet, 343 

 Dragonflies, 135 

 Droppings, 196 

 Drosophila, 166 

 Drum, 300 



Duckweed, 91, 300, 301 

 Dynamics, 20 



Earthworm, 79, S3, 84, 275 



burrows, 82 



distribution, 84 

 Eastern field sparrow, 274 

 Ecads, 49 

 Ece, 26 

 Ecesis, 63, 63-67, 145, 146 



in animals, 65 



in plants, 63-65 



interrelations of community func- 

 tions, 66, 67 



related processes, 66 

 Echard, 79 



Echinacea angustifolia, 272 

 Echinocardium, 341, 350 



-Amphiura association, 341, 342, 343 



-Axinus biome, 345, 348 



Echinocardium, cordatum, 341 



-cordatum-Amphiura filiformis, 340 



filiformis community, 341 



-thyasira biome, 340, 341, 342, 345, 

 348, 349, 350 



-Venus association, 341 

 Echinoderms, 99, 322, 323, 330, 331, 334, 



338 

 Echinoid, 54 

 Ecoclines, 232, 233 

 Ecological succession, 329 

 Ecology, 30 

 Ecotone, 28, 233, 260, 322, 341 



Abra-Solen — Mya community, 348 



Brissopsis-Amphiura, 343 



species, 326 



Syndosmya, 349 

 Edaphic communities, 311, 312 

 Edaphon, 2, 9 

 Eel, 336, 340 

 Eel larvae, 319 

 Eelpout, 339 

 Eggs, loss of, 180 

 Elaeagnus, 139 

 Elk, 120, 123, 133 

 Elymus, 288, 292 



condensatus, 287, 291, 292 



glaucus, 287, 291 



sitanion, 256, 287, 291 



triticoides, 287, 291 

 Elyonurus, 278 



tripsacoides, 278 

 Emigration, 200 

 Empusa, 138 



Encoptolophus costalis, 265 

 Endobiose, 18 

 Endosymbionts, 141 

 Enemies, 183, 185 

 Engelmannia, 279 

 English sparrow, 108 

 Entomostraca, 55 

 Ephaptomenon, 50 

 Ephedra, 283 

 Epibiose, 18 

 Epicampps, 287 



rigens, 282, 287 

 Epigeichthj's atropurpureus, 326 

 Epiphytes, 141 

 Eragrostis lugens, 282 

 Ericaceae, 140 



