Gina Darin, Environmental Scientist CA Department of Water Resources Division of Environmental...
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When a problem weed is found, you must… WHIPPET!
Gina Darin, Environmental ScientistCA Department of Water ResourcesDivision of Environmental Services
CA Natural Resources Agency GIS DaySacramento, CANovember 19, 2013
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
SF Bay
Sacramento
Overall Priority
Impact
Wildlands
Agriculture
Humans
Regional Site
Value
Invasiveness
Nearest Neighbor
Rate of Spread
Dispersal Vector
Feasibility
Size
Reproduction
Detectability
Accessibility
Cost
WHIPPET Criteria
Point System
Points 10 = Very High Priority 6 = High Priority 3 = Moderate Priority 1 = Low Priority 0 = Not a priority
Notice non-linear scale
Calculate Priority and Review Output
WHIPPET Excel Score calculator
Consider external circumstances
Estimate project cost using WeedSearchTM
Species present in San Francisco Bay Area?
NO
Known from adjacent or ecologically similar counties?
Known to be invasive?
Watch List
Limited number & distribution of occurrence records?
Too widespread for early detection;
consider species for local control and
containment projects.
Confirmed limited distribution through expert review?
Documented invasive?
Expert assessed as invasive?
Early Detection & Rapid Response List No Listing
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
BAEDN Species Prioritization
No Listing
DWR Projects will Benefit Bay Delta
Conservation Plan Fish Restoration
Program Oroville Weed
Management Plan