Adaptive Coloration in AnimalsMethuen & Company, Limited, 1940 - 508 pages |
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Page 31
... observations , says : All this sounds very well , but the observa- tions and experiments are such as are usual in physiological laboratories , and the frogs , when observed in their native haunts , or even when kept under proper ...
... observations , says : All this sounds very well , but the observa- tions and experiments are such as are usual in physiological laboratories , and the frogs , when observed in their native haunts , or even when kept under proper ...
Page 105
... observed . Swynnerton has also drawn atten- tion to a second cryptic effect of this habit , which in addition to reducing the shadow to a minimum , at the same time causes shadows of the nervures on the wing membrane itself to break up ...
... observed . Swynnerton has also drawn atten- tion to a second cryptic effect of this habit , which in addition to reducing the shadow to a minimum , at the same time causes shadows of the nervures on the wing membrane itself to break up ...
Page 269
... observation that it was never seen to be taken by Trout , even on occasions when considerable hatches of the insect were observed ( 427 ) . Now it is significant that H. sulphuria , the Yellow May Dun , is a vivid yellow colour which ...
... observation that it was never seen to be taken by Trout , even on occasions when considerable hatches of the insect were observed ( 427 ) . Now it is significant that H. sulphuria , the Yellow May Dun , is a vivid yellow colour which ...
Contents
THE METHODS BY WHICH CONCEALMENT | 5 |
ADAPTIVE RADIATION IN COLOUR RESEMBLANCE II | 11 |
CONCLUSION | 15 |
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advertisement Africa antennæ aposematic aposematic animals appearance attack attitude background bark bees behaviour birds body brown Bufo butterflies camouflage caterpillars chromatophores closely colour colour-scheme concealing coloration conspicuous contrast correlated countershading crab creatures Crustacea cryptic coloration dark deceptive defence device display disruptive pattern distasteful dorsal eaten Edward Poulton effect eggs enemies environment evidence example exhibited experiments fact feeding fishes frogs function genus grasshoppers green grey ground group of animals habits head hind Hingston Hymenoptera illustrated insects instance instinct larva larvæ later leaf legs Lepidoptera light lizards mammals markings mimetic moths nature nest Nightjars observed optical Orthoptera patches pigment Plate Portuguese East Africa Poulton predators predatory prey principle procryptic protective referred relation remarkable resemblance rest seen shade shadows significant similar snakes species specimens spider spots Stone-Curlew striking surface surroundings tail tegmina tion toads tone various warning coloration widely wings yellow