رکورد قبلیرکورد بعدی

" Mountain beaver problems in the forest of California, Oregon, and Washington "


Document Type : AL
Record Number : 941653
Doc. No : LA8mw3n719
Language of Document : English
Main Entry : Borrecco, John E.; Anderson, Robert J.
Title & Author : Mountain beaver problems in the forest of California, Oregon, and Washington [Article]\ Borrecco, John E.; Anderson, Robert J.
Title of Periodical : Proceedings of the Vertebrate Pest Conference
Volume/ Issue Number : 9
Date : 1980
Abstract : Mountain beavers (Aplodontia rufa) cause considerable damage to forest trees in the Pacific Northwest. Feeding injuries result in mortality, growth losses. deformity of trees, and understocked plantations. Losses are most severe in new plantations with significant damage problems also occurring in sapling stands. Trapping, and placing physical barriers around individual trees, are the most common methods of control. Both methods are costly but effective in reducing damage.
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