Results of Harlequin Duck (Histrionicus Histrionicus) Surveys in Wilderness Areas of the Flathead National Forest, Montana 1991
Results of Harlequin Duck (Histrionicus Histrionicus) Surveys in Wilderness Areas of the Flathead National Forest, Montana 1991
Montana Natural Heritage Program
The book Results of Harlequin Duck (Histrionicus Histrionicus) Surveys in Wilderness Areas of the Flathead National Forest, Montana 1991 was written by author Montana Natural Heritage Program Here you can read free online of Results of Harlequin Duck (Histrionicus Histrionicus) Surveys in Wilderness Areas of the Flathead National Forest, Montana 1991 book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Results of Harlequin Duck (Histrionicus Histrionicus) Surveys in Wilderness Areas of the Flathead National Forest, Montana 1991 a good or bad book?
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This is consistent with findings in similar studies conducted in northern Idaho and Montana (Wallen and Groves 1989, Carlson 1990) . Harlequins have been consistently reported in low number in the Rocky Mountain breeding areas (Wallen and Groves 1989, Carlson 1990, Kuchel 1977) . This inherent low density, combined with the extensive modification and loss of breeding habitat via human activities (such as dam building, stream-side development and water quality degradation) warrants a high level ...of protection for the Harlequin Duck and its remaining habitat. I A significant potential impact on the breeding population in the wilderness areas of FNF is recreational 24 I I floating and increased human activity in the riparian areas. This is especially critical during early summer while hens are tending nests and prone to abandon nest sites. Preliminary information from the Canadian Park Service indicates a strong negative correlation between Harlequin I Duck numbers and increased recreational floating along some | I I I I I I I I I I rivers (P.
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