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Creator:: Wilson, Mark V. and Clark, Deborah Louise, 1950-
Abstract:: We report first-year results from two field experiments evaluating the effectiveness of various techniques for the control of pest plants in Fender's blue butterfly habitat. In the woody-plant study, we monitored the effects of mowing, mowing and herbicides, and burning on woody plants and key native and non-native grasses and...
Resource Type:: Technical Report
Full Text:: Manipulation and Management of Fender's Blue Butterfly Areas" Prepared by Mark V. Wilson and Deborah L

Creator:: Clark, Deborah Louise, 1950- and Wilson, Mark V.
Abstract:: Native prairies, which once dominated the landscape of the Willamette Valley, are considered among the rarest of Oregon's ecosystems. Even though only remnants remain today, they harbor rare and endangered species such as the Fender's blue butterfly (Icaricia icariodes fenderi) and its preferred host plant, Kincaid's lupine (Lupinus sulphureus ssp....
Resource Type:: Technical Report
Full Text:: Management of Fender's Blue Butterfly Habitats Prepared by Deborah L. Clark and Mark. V. Wilson

Creator:: Clark, Deborah Louise, 1950- and Wilson, Mark V.
Abstract:: We report results from a field experiment evaluating the effectiveness of mowing, mowing and herbicides, and burning on woody plants, key native and non-native grasses and forbs, and the Fender's blue butterfly. The goal was to find a technique that controlled woody pest plants without harming native species or promoting...
Resource Type:: Technical Report
Full Text:: Techniques on Fender's Blue Butterfly and Kincaid's Lupine Prepared by Deborah L. Clark and Mark V

Creator:: Wilson, Mark V. and Clark, Deborah Louise, 1950-
Abstract:: We report results from a field experiment evaluating the effectiveness of mowing, mowing and herbicides, and burning on woody plants, key native and non-native grasses and forbs, and the Fender’s blue butterfly. The goal was to find a technique that controlled woody pest plants without harming native species or promoting...
Resource Type:: Technical Report
Full Text:: , Baskett Slough NWR Prepared by Mark V. Wilson and Deborah L. Clark Submitted to U.S. Fish and

Creator:: Wilson, Mark V. and Clark, Deborah Louise, 1950-
Abstract:: We report final results from a five-year field experiment evaluating the effects of different mowing regimes on groups of native and non-native grasses and forbs. The study site was a degraded prairie at Baskett Slough National Wildlife Refuge dominated by the pest plant Arrhenatherum elatius (tall oatgrass). Mowing treatments differed...
Resource Type:: Technical Report
Full Text:: in Fender’s Blue Butterfly Habitats Prepared by Mark V. Wilson and Deborah L. Clark Department

Creator:: Wilson, Mark V. and Clark, Deborah Louise, 1950-
Abstract:: Native upland prairies, which once dominated the landscape of the Willamette Valley, are considered among the rarest of Oregon's ecosystems. Even though only remnants remain today, they harbor many rare and endangered species such as the Fender's blue butterfly and its host plant, Kincaid’s lupine. Invasion of remnant prairies by...
Resource Type:: Technical Report
Full Text:: Rose in Willamette Valley Upland Prairies Prepared by Mark V. Wilson and Deborah L. Clark

Creator:: Clark, Deborah Louise, 1950- and Wilson, Mark V.
Abstract:: Prepared for US Fish and Wildlife Service Western Oregon NWR Complex and Oregon Natural Heritage Program Portland, Oregon.
Resource Type:: Technical Report
Full Text:: Upland Prairies Prepared by Deborah L. Clark and Mark V. Wilson Department

Creator:: Clark, Deborah Louise, 1950- and Wilson, Mark V.
Abstract:: Our project goal is to promote the abundance of the endangered Fender’s blue butterfly (Icaricia icarioides fenderi) by recreating upland prairie habitat in former agricultural land at Finley National Wildlife Refuge, Corvallis, Oregon. To achieve this goal we initiated the following three studies. Study One: Experimental Investigation on the Effectiveness...
Resource Type:: Technical Report
Full Text:: Deborah L. Clark and Mark V. Wilson Prepared for Oregon Fish and Wildlife Service US Fish

Creator:: Wilson, Mark V. and Clark, Deborah Louise, 1950-
Abstract:: We tested the recolonization ability of the Fender’s blue butterfly and monitored the vegetation response to a management-scale prescribed fire at the Baskett Slough National Wildlife Refuge, western Oregon. The prescribed fire successfully cut shrub cover in half, but also reduced the size of Festuca roemeri, a dominant native grass....
Resource Type:: Technical Report
Full Text:: Slough NWR Submitted by Mark V. Wilson and Deborah L. Clark Submitted to U.S. Fish and Wildlife

Creator:: Clark, Deborah Louise, 1950- and Wilson, Mark V.
Abstract:: Wetland prairies of the Willamette Valley, among the rarest of Oregon’s ecosystems, are threatened by invasion of woody species and non-native pest species. Because fire has been important in maintaining Willamette Valley prairies for at least 1000 years, prescribed burning is a top choice of managers for preventing encroachment of...
Resource Type:: Technical Report
Full Text:: and Mark V. Wilson Oregon State University Submitted to Coast Range Resource

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