874 resultados para shore birds


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Shorelines tend to retreat landward as water levels rise. Less than 20 percent of the shore, lost as Lake Michigan rose between 1967 and 1976, was due to direct inundation; the remaining 80 percent was due to increased erosion in response to the higher lake levels. A simple correlation of lake level change and simultaneous shore retreat ignores the inevitable lag between process and response, but still accounts for 50 percent of the variance in shore retreat. A graphic summary of field data is presented to estimate effects of future lake level changes in similar coastal environments. Qualitative guidance is provided on how and when these estimates should be adjusted to reflect differences in environmental settings. Complete adjustment of the shore will be underestimated by the empirical relationship; but where lake levels change constantly, there will be many such instances of incomplete shore response. (Author).

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"Compiled through the ... efforts of James Stark"--p. 1.

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Mode of access: Internet.

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Mode of access: Internet.

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Bibliography: p. 440-441.

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Earlier editions have title: A systematic classification for the birds of the world.

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Vol. 2: "Actual date of publication, January 31, 1910."

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Bibliography: leaf 21.

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"References": p. 42. "Bibliography of books and bulletins on the propagation of pheasants, grouse and quail": p. 43-44.

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"Publications on game birds": p. 206-215.

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Mode of access: Internet.

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Pages 25, 26, 41, 44, 45, 46, 47, 48, 68 and 80 are repeated.

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1933 ed. written by W. F. Flowers under the pseud., Bird Haven.

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Mode of access: Internet.