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The Effect of Transmission-line Corridors on Bird Populations

Stanley H. Anderson, Kathleen Mann and Herman H. Shugart, Jr.
The American Midland Naturalist
Vol. 97, No. 1 (Jan., 1977), pp. 216-221
DOI: 10.2307/2424698
Stable URL: http://www.jstor.org/stable/2424698
Page Count: 6
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
The Effect of Transmission-line Corridors on Bird
              Populations
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Abstract

Observations of bird populations were made along transmission-line corridors of four different widths (12, 30.5, 61, 91.5 m) in areas in which the' transmission-line rights-of-way traversed typical eastern Tennessee deciduous forest. In addition, detailed grid-mapping of individual birds was conducted in forest and in a 30.5 m-wide corridor habitat. Narrow corridors (12 m) had reduced bird species diversity, but the 30.5 m corridor had high bird density and diversity. The wider corridors were less diverse but attracted several open-country bird species not characteristic of surrounding forest. Significance of the effects of the 30.5 m corridor on the distribution of 35 bird species was determined. The highest species diversity was associated with the forest habitat.

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