Part 65

Dominance, 47

Dominant animals, 47, 48

Donaciinæ, natural history of larvæ, 109

Dragon flies, vs. mosquitoes, 72

Dragon-fly nymphs, ecology, 118 keys, 75 reactions to contact and light, 118

Drinking habits, butterflies, 119 moths, 119

Drosophila, convulsive reflexes, 109 reactions, 109

Dunes, bee fauna, 139

Dynamic conceptions, 80

Dynamic principles, 86

Dynamic relation, 85

Dynamic relations, of aggregations, 130 of associations, 130 of environment, 82

Dynamic standpoint, 91, 101

Dynamic status, 29, 31

Dynamic theory and physiological problems, 97

Dynamical interpretation, 82

Dynamics of living matter, 96

Earthworm, behavior modifiable, 105 movements, 105 quantitative studies, 58

Echinoderms, food, 126

Ecological catalogue of crawfish, 113

Ecological criteria, 16

Ecological distribution of birds of Isle Royale, 148

Ecological features of evolution, 21

Ecological ideas, educational value, 146

Ecological organization of museums, 22

Ecological relations, of entomophilous flora and anthophilous insect fauna of Illinois, 142 of invertebrate fauna of Isle Royale, 146

Ecological study, of cave plankton, Shawnee Cave, 145 of lake plankton, 140

Ecological succession, 21, 90, 101, 124 birds, 124, 133 causes in ponds, 133 fish in ponds and streams, 133 land animals, 133 mammals of Isle Royale, 145 on an oyster reef, 112