DEG Invasives

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    Herbarium Collections and Invasive Species

    Biology: Understanding the Past, Present,

    and Future

    David Giblin, Ph.D.

    Ben Legler

    Richard G. Olmstead, Ph.D.

    University of Washington Herbarium - Burke Museum

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    Talk Outline

    UW Herbarium

    Herbaria and Invasive Plant Research

    Inadequate Invasive Plant Collections

    Recent Invasives Data from WTU

    Digital Resources at WTU Conclusions and Future Needs

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    The University of Washington Herbarium

    Founded in 1882 - now part of Burke Museum

    Largest in Pacific Northwest

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    The University of Washington Herbarium

    Founded in 1882 - now part of Burke Museum

    Largest in Pacific Northwest

    ~600,000 specimens

    vascular plants (380,000)

    bryophytes (120,000)

    fungi (50,000)

    lichens (22,000)

    marine algae (25,000)

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    Talk Outline

    UW Herbarium

    Herbaria and Invasive Plant Research

    Inadequate Invasive Plant Collections

    Recent Invasives Data from WTU

    Digital Resources at WTU Conclusions and Future Needs

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    Specimen-based Research

    Marion Ownbey - Tragopogon

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    Specimen-based Research

    Richard Mack -Bromus tectorumMarion Ownbey - Tragopogon

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    Specimen-based Research

    Richard Mack -Bromus tectorumMarion Ownbey - Tragopogon

    Sarah Reichard - Invasive Ornamentals

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    Specimen-based Research

    Richard Mack -Bromus tectorumMarion Ownbey - Tragopogon

    Sarah Reichard - Invasive Ornamentals Peter Zika - Native/Exotic congeneric hybridization

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    Talk Outline

    UW Herbarium

    Herbaria and Invasive Plant Research

    Inadequate Invasive Plant Collections

    Recent Invasives Data from WTU

    Digital Resources at WTU Conclusions and Future Needs

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    #ofSpecime

    ns(x1000)

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    Collections Growth by Year at WTU 1937-2004

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    Collections Growth by Year at WTU 1937-2004

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    Specimens of Introduced Species added to WTU 1937-2004

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    1937 1940 1943 1946 1949 1952 1955 1958 1961 1964 1967 1970 1973 1976 1979 1982 1985 1988 1991 1994 1997 2000 2003

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    Spartina alterniflora- smooth cordgrass

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    Polygonum cuspidatum- Japanese knotweed

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    Buddleja davidii- butterfly bush

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    Talk Outline

    UW Herbarium

    Herbaria and Invasive Plant Research

    Inadequate Invasive Plant Collections

    Recent Invasives Data from WTU

    Digital Resources at WTU

    Conclusions and Future Needs

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    Recent Findings

    Impatiens x pacifica(I. ecalcarataxI. capensis) in

    Western Washington

    Murdannia kiesakalong Columbia River

    Geranium lucidumin Clark and Skagit counties

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    Murdannia keisak - wartremoving herb

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    Impatiens x pacifica(I. ecalcarataxI. capensis) - jewelweed

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    Geranium lucidum - shining geranium

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    Talk Outline

    UW Herbarium

    Herbaria and Invasive Plant Research

    Inadequate Invasive Plant Collections

    Recent Invasives Data from WTU

    Digital Resources at WTU

    Conclusions and Future Needs

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    Talk Outline

    UW Herbarium

    Herbaria and Invasive Plant Research

    Inadequate Invasive Plant Collections

    Recent Invasives Data from WTU

    Digital Resources at WTU

    Conclusions and Future Needs

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    Conclusions and Future Needs

    Herbarium records invaluable

    Increase effort to collect invasives

    Deposit duplicates at regionally significant herbaria

    Increase funding for databasing invasives specimens

    Exploit emerging technologies for data sharing

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    Photo Acknowledgements

    Ben Legler

    Fred Weinmann

    Arne Andenberg

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