Adaptive Coloration in AnimalsMethuen & Company, Limited, 1940 - 508 pages |
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Page 23
... less severe , the change to white is exceptional . The same is true of the Stoat ( Mustela erminea ) , which in winter regularly turns white in the north of Scotland , but less completely and less frequently in England . Similarly the ...
... less severe , the change to white is exceptional . The same is true of the Stoat ( Mustela erminea ) , which in winter regularly turns white in the north of Scotland , but less completely and less frequently in England . Similarly the ...
Page 168
... less so than others . These several devices fall far short of perfection . But they are effective in the sense that by rendering the larvæ less visible , less digestible , or less edible , in each case attack tends to be limited to ...
... less so than others . These several devices fall far short of perfection . But they are effective in the sense that by rendering the larvæ less visible , less digestible , or less edible , in each case attack tends to be limited to ...
Page 178
... less conspicuous and 755 ( 66 per cent . ) for the more conspicuous fishes . The results of these experiments appear all the more remarkable when it is realized that the confined quarters and the total absence of cover or means of ...
... less conspicuous and 755 ( 66 per cent . ) for the more conspicuous fishes . The results of these experiments appear all the more remarkable when it is realized that the confined quarters and the total absence of cover or means of ...
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