Adaptive Coloration in Animals |
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Page 23
For instance , in the extreme north of its range , the Arctic Fox ( Alopex lagopus )
nearly always discards its bluish - brown summer dress for a pure white winter
coat ; but in Iceland , where the winter is less severe , the change to white is ...
For instance , in the extreme north of its range , the Arctic Fox ( Alopex lagopus )
nearly always discards its bluish - brown summer dress for a pure white winter
coat ; but in Iceland , where the winter is less severe , the change to white is ...
Page 168
Others wear warning coloration and are highly distasteful to most enemies ; but
certain predators find them less so than others . These several devices fall far
short of perfection . But they are effective in the sense that by rendering the larv¿
...
Others wear warning coloration and are highly distasteful to most enemies ; but
certain predators find them less so than others . These several devices fall far
short of perfection . But they are effective in the sense that by rendering the larv¿
...
Page 178
for the 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 ...
for the 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 ...
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Contents
THE METHODS BY WHICH CONCEALMENT | 5 |
VARIABLE COLOUR RESEMBLANCE | 20 |
THE PRINCIPLE OF CONCEALMENT BY COUNTERSHADING | 35 |
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Common terms and phrases
adaptive animals aposematic appearance associated attack attention attitude background become bees belonging birds body brown butterflies caterpillars certain closely colour combined concealment considered conspicuous contrast cryptic dark deceptive depends described developed device directed display disruptive effect eggs enemies environment evidence example exhibited experiments fact feeding field fishes frequently frogs function further green ground habits hand head highly illustrated important individuals insects instance interesting kind known larv¿ later leaf leaves less light living lizards London markings means method mimicry moths movements nature nest Notes objects observed occur particular pattern predators present prey principle produced protective referred relation relatively remarkable resemblance rest says seen selection shade side significant similar snakes species spider striking structure surface surroundings toads tone tree various warning widely wings yellow young