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Wiktionary英語版での「life-dinner principle」の意味 |
life-dinner principle
語源
Coined by British biologists Richard Dawkins and John Krebs in 1979, in reference to one of Aesop's fables (see the quotation below).
名詞
- (evolutionary biology) A principle of asymmetry in selective pressure between predators and prey.
- 1979, Richard Dawkins & John Krebs, “Arms races between and within species”, in Proceedings of the Royal Society of London. Series B, Biological Sciences, volume 205, page 493:
- The life-dinner principle (unequal selection pressures) ¶ ‘The rabbit runs faster than the fox, because the rabbit is running for his life while the fox is only running for his dinner’ (Dawkins 1979, after Aesop). There is a built in imbalance between predator and prey with respect to the penalty of failure. Mutations that make foxes lose races against rabbits might therefore survive in the fox gene pool longer than mutations that cause rabbits to lose races can expect to survive in the rabbit gene pool.
- 1992, Heather Joanne Henter, The ecological genetics of interactions between the pea aphid (Acyrthosiphon pisum) and the parasitoid Aphidius ervi. PhD dissertation. Cornell University. page 8:
life/dinner principle
名詞
life/dinner principle (複数形 not attested)
- Alternative form of life-dinner principle
- 2006, Richard Dawkins, The Selfish Gene, 30th anniversary edition, page 250:
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