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Filtering by: Committee Member Karow, Russ Remove constraint Committee Member: Karow, Russ Subject Canada goose -- Oregon -- Willamette River Valley Remove constraint Subject: Canada goose -- Oregon -- Willamette River Valley

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  • Assessment of impacts of Canada geese on wheat production

    Creator:
    Louhaichi, Mounir
    Abstract:
    Numbers of wild Canada geese (Branta canadensis) have increased dramatically during the past 30 years in the lower Columbia and Willamette Valley systems. The damage they cause by grazing and trampling plants can be substantial. The objectives of this research were to: 1) Develop methods that provide reliable estimates of...
    Resource Type:
    Masters Thesis