Adaptive Coloration in AnimalsMethuen & Company, Limited, 1940 - 508 pages |
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Page 125
... vegetation . Hence the essential step leading to visual deception must be to break up that smooth surface , to destroy that rounded symmetrical form , to obliterate that regular contour - all of which clearly differentiate the egg from ...
... vegetation . Hence the essential step leading to visual deception must be to break up that smooth surface , to destroy that rounded symmetrical form , to obliterate that regular contour - all of which clearly differentiate the egg from ...
Page 128
... vegetation were it not for the fact that the bird on duty is careful to cover them over with weed before quitting the nest . The same habit is practised by various ducks , and by Pheasants , whose unspotted eggs , though not white , are ...
... vegetation were it not for the fact that the bird on duty is careful to cover them over with weed before quitting the nest . The same habit is practised by various ducks , and by Pheasants , whose unspotted eggs , though not white , are ...
Page 311
... vegetation , with very little disturbance or flow in the water . According to Coates ( 99 ) the habits of the fish indicate that it is only at home in water which is always quiet and still . In such surroundings , hanging head downwards ...
... vegetation , with very little disturbance or flow in the water . According to Coates ( 99 ) the habits of the fish indicate that it is only at home in water which is always quiet and still . In such surroundings , hanging head downwards ...
Contents
SEASONAL DIMORPHISM | 17 |
MORPHOLOGICAL COLOUR | 24 |
OBLITERATIVE SHADING | 35 |
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Common terms and phrases
adaptive coloration advertisement African antennæ aposematic aposematic animals appearance attack attitude autotomy 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 cryptic resemblance dark deceptive defence device display disruptive pattern dorsal eaten Edward Poulton effect eggs enemies environment evidence example exhibited experiments exposed fact feeding fishes frogs function genus grasshoppers green grey group of animals habits Hingston Hymenoptera illustrated insects instance instinct larva larvæ later leaf Lepidoptera light lizards mammals markings mimetic mimicry moths nature nest nidifugous Nightjars nocturnal observed optical Orthoptera phenomena pigment Poulton predators predatory prey principle procryptic protective referred relation remarkable rest seen shade significant similar snakes species specimens spider Stone-Curlew striking surface surroundings tail tegmina tion toads tone various visual warning coloration widely wings yellow Zool