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When a problem weed is found, you must… WHIPPET!

Gina Darin, Environmental Scientist CA Department of Water Resources Division of Environmental Services. When a problem weed is found, you must… WHIPPET!. CA Natural Resources Agency GIS Day Sacramento, CA November 19, 2013. Identify and Inventory. ID priority weed species

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When a problem weed is found, you must… WHIPPET!

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  1. Gina Darin, Environmental Scientist CA Department of Water Resources Division of Environmental Services When a problem weed is found, you must… WHIPPET! CA Natural Resources Agency GIS Day Sacramento, CA November 19, 2013

  2. Identify and Inventory • ID priority weed species • Inventory occurrences • Gross size of infestation (survey area) • Net size of infestation (treatment area) • Accessibility of site • Detectability of infestation Lake Tahoe Sacramento SF Bay

  3. WHIPPET Criteria

  4. Point System Points • 10 = Very High Priority • 6 = High Priority • 3 = Moderate Priority • 1 = Low Priority • 0 = Not a priority Notice non-linear scale

  5. WHIPPET in MS Excel 2007

  6. WHIPPET in ArcGIS 10.0 SF Bay Area

  7. WHIPPET in ArcGIS 10.0

  8. Score Distance to Features

  9. Attribute Table with Added Scores

  10. Symbolize by Score SF Bay Area

  11. Score Nearest Neighbor

  12. Calculate Priority and Review Output • WHIPPET Excel Score calculator • Consider external circumstances • Estimate project cost using WeedSearchTM

  13. BAEDN Species Prioritization Species present in San Francisco Bay Area? YES NO Limited number & distribution of occurrence records? Known from adjacent or ecologically similar counties? YES NO Confirmed limited distribution through expert review? YES NO Too widespread for early detection; consider species for local control and containment projects. NO Known to be invasive? YES Documented invasive? NO YES YES NO Expert assessed as invasive? YES NO No Listing Watch List Early Detection & Rapid Response List No Listing

  14. BAEDN + WHIPPET =

  15. DWR Projects will Benefit • Bay Delta Conservation Plan • Fish Restoration Program • Oroville Weed Management Plan

  16. Acknowledgements Thank you for your attention!

  17. Any Questions??? Contact Gina.Darin@water.ca.gov

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