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µµ¼­ Climate plays an important part in determining the average numbers of a species,...¿¡ ´ëÇØ °Ë»öÇÑ
" Climate plays an important part in determining the average numbers of a species, and periodical seasons of extreme cold or drought seem to be the most effective of all checks. "
Darwiniana: Essays and Reviews Pertaining to Darwinism - 40 ÆäÀÌÁö
ÀúÀÚ: Asa Gray - 1878 - 396 ÆäÀÌÁö
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The American Journal of Science and Arts

1860 - 982 ÆäÀÌÁö
...obtaining of food, but the serving as prey to other animals, which determines the average cumbers of a species." — p. 68. " Climate plays an important...and periodical seasons of extreme cold or drought, I believo to be the most effective of all checks. I estimated that tlie winter of 1854-55 destroyed four-fifths...
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On the Origin of Species by Means of Natural Selection: Or, The Preservation ...

Charles Darwin - 1864 - 472 ÆäÀÌÁö
...of prey : even the tiger in India most rarely dares to attack a young elephant protected by its dam. Climate plays an important part in determining the...extreme cold or drought, I believe to be the most cffective of all checks. I estimated that the winter of 1854—55 destroyed four-fifths of the birds...
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The stream of life on our globe ... as revealed by modern discoveries in ...

John Laws Milton - 1864 - 668 ÆäÀÌÁö
...Again, Mr. Darwin says, " I estimated (chiefly from the greatly reduced numbers of nests in the spring) that the winter of 1854-55 destroyed four-fifths of...grounds, and this is a tremendous destruction when we consider that ten per cent, is an extraordinarily severe mortality from epidemics with man."* Yet all...
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On the Origin of Species by Means of Natural Selection, Or, The Preservation ...

Charles Darwin - 1866 - 668 ÆäÀÌÁö
...prey ; for even the tiger in India most rarely dares to attack a young elephant protected by its dam. Climate plays an important part in determining the...and periodical seasons of extreme cold or drought seem to be the most effective of all checks. I estimated (chiefly from the greatly reduced numbers...
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The Origin of Species by Means of Natural Selection: Or, The Preservation of ...

Charles Darwin - 1873 - 492 ÆäÀÌÁö
...prey; for even the tiger in India most rarely dares to attack a young elephant protected by its dam. Climate plays an important part in determining the...numBe'rs of a species, and periodical seasons of extreme col(J,,or drought seem to be the most effective of all checks. I estimated "^chiefly from the greatly...
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On the origin of species by means of natural selection ; or, The ...

Charles Darwin - 1875 - 504 ÆäÀÌÁö
...prey ; for even the tiger in India most rarely dares to attack a young elephant protected by its dam. Climate plays an important part in determining the...and periodical seasons of extreme cold or drought seem to be the most effective of all checks. I estimated (chiefly from the greatly reduced numbers...
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The refutation of Darwinism; and the converse theory of development; based ...

T Warren O'Neill - 1880 - 482 ÆäÀÌÁö
...food may be now superabundant, it is not so at all seasons of each recurring year." Again he says : " Climate plays an important part in determining the...winter of 1854-55 destroyed four-fifths of the birds on my own grounds; and this is a tremendous destruction when we remember that ten per cent. is an extraordinarily...
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In the Country: Essays

Morgan George Watkins - 1883 - 250 ÆäÀÌÁö
...what havoc a severe winter makes amongst our garden friends. "I estimated that the winter of 1854-5 destroyed four-fifths of the birds in my own grounds,...destruction when we remember that ten per cent is an extraordinary severe mortality from epidemics with man* Our British birds are commonly weather-wise,...
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The Origin of Species by Means of Natural Selection: Or the Preservation of ...

Charles Darwin - 1884 - 494 ÆäÀÌÁö
...India most rarely iares to attack a young elephant protected by its dam. Climate plays an importaut part in determining the average numbers of a species,...and periodical seasons of extreme cold or drought seem to be the most effective of all checks. I estimated (chiefly from the greatly reduced numbers...
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Darwinism Stated by Darwin Himself: Characteristic Passages from the ...

Charles Darwin - 1884 - 396 ÆäÀÌÁö
...by its dam. CLIMATE AS A CHECK TO INCREASE. Climate plays an important part in deter""'"' ' mining the average numbers of a species, and periodical seasons of extreme cold or drought seem to be the most effective of all checks. I estimated (chiefly from the greatly reduced numbers...
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