Adaptive Coloration in AnimalsMethuen, 1957 - 508 pages |
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Page 35
... shade , appear to be darkened . It is owing to the unequal reflection of light from its different surfaces that a solid object of uniform colour presents to the eye the well - known appearance of light and shade ; and it is almost ...
... shade , appear to be darkened . It is owing to the unequal reflection of light from its different surfaces that a solid object of uniform colour presents to the eye the well - known appearance of light and shade ; and it is almost ...
Page 36
... shade and light . This treatment by countershading , if properly carried out , as in Thayer's famous models , would render the bird almost com- pletely invisible from a short distance away . Now it is this very principle upon which the ...
... shade and light . This treatment by countershading , if properly carried out , as in Thayer's famous models , would render the bird almost com- pletely invisible from a short distance away . Now it is this very principle upon which the ...
Page 321
... shade , the colour serves to deepen and intensify that shade , thus producing the optical effect of a very dark clear - cut mass of shadow beneath the edge of a leaf . The colour - scheme is , in fact , a total inversion of that shown ...
... shade , the colour serves to deepen and intensify that shade , thus producing the optical effect of a very dark clear - cut mass of shadow beneath the edge of a leaf . The colour - scheme is , in fact , a total inversion of that shown ...
Contents
THE METHODS BY WHICH CONCEALMENT | 5 |
ADAPTIVE RADIATION IN COLOUR RESEMBLANCE II | 11 |
COLOUR RESEMBLANCE DUE TO CHOICE OF APPROPRIATE BACKGROUNDS | 18 |
Copyright | |
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adaptive coloration advertisement Africa antennæ aposematic appearance attack attitude background bark bees beetles behaviour birds body brown Bufo butterflies camouflage caterpillars chromatophores closely colour colour-scheme concealing coloration conspicuous contrast correlated countershading crab Crustacea cryptic coloration cryptic resemblance dark deceptive device display disruptive pattern dorsal eaten Edward Poulton effect eggs enemies environment evidence example exhibited experiments fact feeding figs fishes frogs function geckos genus grasshoppers green grey groups of animals habits head Hymenoptera illustrated insects instance instinct Journ larva larvæ later leaf Lepidoptera light lizards London mammals mantis markings mimetic mimicry mimics moths nature nest Nightjars observed optical Orthoptera Pará patches pigment Polychrus marmoratus Poulton predators prey principle Proc procryptic protective referred relation remarkable rest seen shade shadow significant similar snakes species specimens spider Stone-Curlew striking surface surroundings tail tegmina toads tone tropical various visual warning coloration wings yellow Zool