INDEX 



407 



Erigeron ramosus, 272 

 Erodium, 37, 129, 288 

 Erogala whipplii, 300 

 Erythronium albidum, 38 

 Eschscholtzia, 288 

 Establishment, 63-67 

 Estigmene acraea, 117 

 Estivation, 35 

 Etheostomidae, 308 

 Etheostomids, 310 

 Eudominants, 271, 291 

 Eudorina elegans, 303 

 Euglena, acus, 303 



viridis, 303 

 Euiachon, 316 

 Eumeces obsoletus, 267 

 Euphausids, 102, 320 

 Eupogobia, 333, 338 

 European carp, 301 

 European herring, 201 

 Eurytope, 9 

 Exclosure, 186 

 Excreta, in sea-bottom deposits, 102 



of birds, 73 



of insects, 75 



of mammals, 73, 74 

 Extension of range, 63 



Fabaceae, 139 



Faciation, 247, 328, 100, 244, 327, 331, 



332, 334, 336, 339, 348 

 Faciations, 16 

 Abra-Solen Association. 348 

 Balanus, 328 



characteristic plants of marine, 100 

 climax fresh-water, 305 

 grassland, 243, 244 



Buchloe dactyloidcs, 243 



Festuca ovina, 243 



Hilaria jamesi, 243 



Stipa pennata, 243 

 Haploops, 343, 345 

 Macoma-Asterias, 336 

 marine communities, 305 

 Modiolus, 332 



Mya-Cardium-Arenicola, 334, 336 

 Nucula-Corbula Association, 348 

 Zostera-Rissoa-Cardium, 336 



Failure in population, 180 

 Falcon, 253 

 Family, 154, 246 

 Family dens, 132 

 Fauna, 323 

 Feces, 46 

 Fecundity, 322 

 Feed, 117 

 Festuca, 287, 288 



idahoensis, 287, 291, 292 



occidentalis, 287, 291 



o\ina, 243, 256 



rubra, 287 

 Finger-nail shells, 300 

 Fire, 126 

 Fisher, 132 



Fisher ground squirrel, 290 

 Fishes, 47, 133, 134, 183, 235, 236, 299, 

 301, 319, 320, 322, 331 



anadromous, 201 



bottom-feeding, 98 



cannibalism, 188 



cycles, 180, 181, 187, 199 



dominants, 235, 236, 301, 302 

 fresh-water, 300, 305 

 lake, 306, 307 



fecundity, 187 



fresh-water, 55 



fresh-water influents, 300, 301 



marine nekton, 316, 317 



migration, 201, 202 



native, 302 



nest-building, 98 



pilot, 319 



rat-tailed, 332 



rock, 331 



swift-water communities, 308, 309 



white, 306 



young, 165 

 Flatworm, 140 

 Flexamia, 260 

 Flicker, 129 

 Flies, bee, 252 



robber, 252, 266, 275, 331 



Syrphus, 275 

 FloatirTg bogs, 96 

 Flocks of birds, 153 

 Floodplain, 117 

 Florideae, 141 

 Flounder, 333, 336, 340 



^CAi 



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J. 



