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Invasive Species Prevention The Goal. To reduce, minimize, or eliminate the potential for introduction, establishment, spread, and impact of invasive species across all landscapes and ownerships . Pest Exclusion is the Key. First step is prevention Every dollar spent on prevention saves $34
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Invasive Species PreventionThe Goal To reduce, minimize, or eliminate the potential for introduction, establishment, spread, and impact of invasive species across all landscapes and ownerships.
Pest Exclusion is the Key • First step is prevention • Every dollar spent on prevention saves $34 • in control or eradication costs1 • Avoids habitat destruction and native species loss
Management Costs • Estimate $120 billion/year in invasive species • damages in U.S. • Alaska spends ~$5.8 million/year
Field Research = Pathway of Invasion Invasive aquatic Canadian waterweed, Elodea sp, wrapped around propeller of boat motor Photo credit: U.S. FWS Kenai Refuge. Mud encrusted on a shoe sole Photo credit: U.S. Army Corps of Engineers photo. Be Vigilant- Preventing Invasive Species Spread Can Happen by YOU!
Invasive Species Management Process • Education & vigilance to prevent new introductions • Early detection of new infestations • Eradication (100% removal), where feasible • Control (sustained management) when eradication not possible • Regulation to prohibit importation of nuisance species to Alaska YOU!
Prevention Practices: Pre-activity • Planning- identify activities that are potential vectors • Integrate- equipment and inspection into planning • Determine cleaning needs for gear, vehicles, boots, etc • Incorporate into project plans & budgets • Identify locations for cleaning • Seek- basic information about study area from AKEPIC database http://aknhp.uaa.alaska.edu/maps/akepic/
Prevention Practices: Pre-activity • Conduct site assessment • Determine invasive species locations • Use EDRR if not widespread • Mark & avoid disturbing • Plan travel- consider sequence of operations - Travel from uninfested → infested areas - Work from least → most invaded areas or upstream → downstream
Prevention Practices: Pre-activity • Inspect- tools, equipment, vehicles, clothing, boots, and gear BEFORE entering worksite • Ensure invasive-free • Wear- clothing/shoes that do not • retain materials - Suggested fabrics: • Canvas, nylon, leather, specialty fabrics • Kevlar®1 and Ripstop Nomex®2
Prevention Practices: During Activity • Minimize contact • Avoid walking, driving, or sampling through weed patches • In water, minimize wading/disturbing invaded areas • Clean gear • If traveling >1 site per day: inspect and clean gear • If cleaning not possible, bring back-up or dedicate gear to specific areas
Prevention Practices: Post-activity If drying is not possible (i.e. equipment is not smooth or easily wiped dry) OR aquatic equipment has been in the water for > 1 day: DECONTAMINATE
Prevention Practices: Post-activity • Inspect and clean all equipment, vehicles, and gear: • Remove any visible soil, vegetation, vertebrates, invertebrates, aquatic plants, algae or sediment. Separate all pieces of gear while cleaning. • If necessary, use a scrub brush and rinse with clean water. • Drain all water in bilge pumps, buckets, coolers, or other equipment and wring gear before leaving the site. • Do BEFORE leaving the sampling site or at an interim site. • If cleaning after leaving the sampling site, ensure that no debris will leave the equipment and potentially spread invasive species during transit or cleaning.
Prevention Practices: Post-activity • Dry completely all items for at least five days. • Smooth surfaced items– wipe until dry. Make sure there are no cracks or crevices that could harbor sand-grain-sized particles. • If drying gear completely in not possible-decontaminate! • Decontaminate items that cannot be completely wiped dry or that has been in the water for > 1day. • Ensure wash water does not drain to surface water. • Freeze gear until solid; • Wash gear in 140°F hot water scrubbing with a stiff bristle brush; • If drying, freezing or heating is not feasible, use a 2% bleach solution.
BMPs for vehicles/ATVs • Inspectand clean offvisible visible seeds, plants, animals, and mud from vehicle, ATV, or other large equipment before leaving worksite. • Scrub, brush, high pressure wash, or use air compressor to remove embedded debris or material. Pay particular attention to undercarriage, behind bumpers, wheel wheels, and grill. • Remove gear as needed (e.g. floor mats, behind seats, under seats and door casings) to provide access to all areas for effective cleaning. • Completely dryand re-inspect before visiting a worksite to ensure free of any foreign materials. • .
BMPs for boats/trailers • Inspectand clean offvisible aquatic plants, animals, and mud from boat, motor, trailer, and equipment before leaving water access. • Remove gear as needed (e.g. deck mat, dip nets, net anchors, boat anchor and line, ropes) to provide access to all areas of the boat to allow for effective cleaning. • Rinseboat, trailer, and equipment.
BMPs for Floatplanes Before entering aircraft: • Remove visible plants and pump water from pontoons At water take-off: • Avoid taxiing through aquatic plants. • Raise and lower water rudders several times to clear off plants. After water take-off: • Raise and lower rudders several times to dislodge aquatic plant fragments while flying over the waters you left or over land. • If aquatic plants remain visible on the aircraft, return to the same water body and clean them off.
BMPs for boots/gear • Inspectandclean offplants, animals, and mud from personal items including clothing, waders, footwear, ropes, backpacks, and field gear before leaving worksite. • Separate all gear for effective cleaning. • Scrubany visible material on footwear and tread with a stiff brush or other tool. • Drain all water from bilges, coolers, samplers, etc. • Completely dry all equipment between field sites (5 days) • Dedicate gear for use only at infested site
Plan your prevention kit • Clean water supply (free of mud and debris) • Scrub brushes, bucket and/or boot brushes • Hand tools for removing debris from treads • Flash light for inspecting • Bags for plant material and disposal • Hose adapters for flushing outboard boat motors • Tub for soaking and/or containing cleaned fishing net. • If decontamination is required: • Pressure washer • Thermometer to monitor temperature of treatment • Bleach solution if chemical treatment is the decontamination method
Report invasives • Avoid disturbing the areas • Note the location • GPS coordinates or mark on a map • Take photos and specimen • Take entire plant in zip lock bag • Store in a cool place, or press plant in book or waxed paper • Report to ADF&G invasive species hotline: 1-877-INVASIV (468-2748) dfg.dsf.InvasiveSpecies@alaska.gov