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" The action of climate seems at first sight to be quite independent of the struggle for existence ; but in so far as climate chiefly acts in reducing food, it brings on the most severe struggle between the individuals, whether of the same or of distinct... "
On the Origin of Species: By Means of Natural Selection Or the Preservation ... - Стр. 44
авторы: Charles Darwin - 2007 - Страниц: 328
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Books that Changed the World

Robert Bingham Downs - 1978 - Страниц: 400
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Global Ecology

Mikhail Ivanovich Budyko - 1980 - Страниц: 322
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Ecological Genetics

David J. Merrell - Страниц: 500
...the word competition in these passages. Later, however (p. 84), he does use the word in this context. The action of climate seems at first sight to be quite...distinct species, which subsist on the same kind of food. . . . Each species, even where it most abounds, is constantly suffering enormous destruction at some...
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Books that Changed the World, Том 2250

Robert Bingham Downs - 1983 - Страниц: 352
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The Origin of Species by Means of Natural Selection: The Descent of Man and ...

Charles Darwin - 1955 - Страниц: 659
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The European Origins of Scientific Ecology (1800-1901)

Pascal Acot - 1998 - Страниц: 932
...less game than at present, although hundreds of thousands of game animals are now annually killed. 197 On the other hand, in some cases, as with the elephant...kind of food. Even when climate, for instance extreme CHAP. III. CHECKS TO INCREASE. 69 cold, acts directly, it will be the least vigorous, or those which...
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The Origin of Species by Means of Natural Selection

Charles Darwin - 2000 - Страниц: 484
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Infertilities: Exploring Fictions of Barren Bodies

Robin Truth Goodman - 2001 - Страниц: 234
...environmental factors, such as seasonal variation and the proximity of competitors within the region: "The action of climate seems at first sight to be...distinct species, which subsist on the same kind of food" (96). Reproduction enters the picture as a ratio of population 1ncrease, which puts added pressure...
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Competition

P.A. Keddy - 2001 - Страниц: 552
...these surviving to adulthood. The scarcity of resources is also something he was acutely aware of: "The action of climate seems at first sight to be...the struggle for existence: but in so far as climate acts in reducing food, it brings on the most severe struggle between the individuals, whether of the...
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Understanding Biology Through Evolution

Bruce D. Olsen - 2005 - Страниц: 151
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