Herbarium Collections and Invasive Species Biology: Understanding the Past, Present, and Future...
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Transcript of Herbarium Collections and Invasive Species Biology: Understanding the Past, Present, and Future...
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
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
The University of Washington Herbarium
• Founded in 1882 - now part of Burke Museum
• Largest in Pacific Northwest
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)
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
Specimen-based Research
Richard Mack - Bromus tectorumMarion Ownbey - Tragopogon
Sarah Reichard - Invasive Ornamentals
Specimen-based Research
Richard Mack - Bromus tectorumMarion Ownbey - Tragopogon
Sarah Reichard - Invasive Ornamentals Peter Zika - Native/Exotic congeneric hybridization
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
Collections Growth by Year at WTU 1937-2004
0
500
1000
1500
2000
2500
3000
3500
4000
4500
19371940194319461949195219551958196119641967197019731976197919821985198819911994199720002003Year
Number of specimens
Collections Growth by Year at WTU 1937-2004
0
500
1000
1500
2000
2500
3000
3500
4000
4500
19371940194319461949195219551958196119641967197019731976197919821985198819911994199720002003Year
Number of specimens
Specimens of Introduced Species added to WTU 1937-2004
0
100
200
300
400
500
600
700
1937 1940 1943 1946 1949 1952 1955 1958 1961 1964 1967 1970 1973 1976 1979 1982 1985 1988 1991 1994 1997 2000 2003
Year
Number of specimens
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
Recent Findings
• Impatiens x pacifica (I. ecalcarata x I. capensis) in Western Washington
• Murdannia kiesak along Columbia River
• Geranium lucidum in Clark and Skagit counties
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
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
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