首页> 美国政府科技报告 >Greater Sage Grouse on the Edge of Their Range: Leks and Surrounding Landscapes in the Dakotas.
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Greater Sage Grouse on the Edge of Their Range: Leks and Surrounding Landscapes in the Dakotas.

机译:在他们的范围边缘的更加伟大的sage松鸡:Dakotas的Leks和周围的风景。

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Sage grouse (Centrocercus spp.) have been declining throughout their range in the United States and Canada as well as in individual states and provinces. Sage grouse, including the combined range of both the greater sage grouse (C. urophasianus) and the Gunnison sage grouse (C. minimus), once occurred in 16 states and three Canadian provinces; now they only occur in 11 states and two Canadian provinces (Connelly and Braun 1997, Schroeder et al. 1999). Excluding states suggested as part of the Gunnison sage grouse range (Young et al. 2000), greater sage grouse range has declined from 13 states and three Canadian provinces to 11 states and two Canadian provinces (Schroeder et al. 1999). Concerns are growing over the reasons for these declines.

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