invasive species monitoring aquatic and riparian effectiveness monitoring program (aremp) peter...
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Invasive Species Monitoring
Aquatic and Riparian Effectiveness Monitoring Program (AREMP)
Peter Gruendike
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AREMP Overview• Assess watershed
condition status and trend in 6th field watersheds
• Monitor the effectiveness of the Northwest Forest Plan’s Aquatic Conservation Strategy in maintaining and restoring watershed condition
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Study Design
• 250 randomly selected watersheds
• Minimum of 25% federal ownership
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Study Design
• 250 randomly selected watersheds
• Minimum of 25% federal ownership
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Field Data CollectionChannel morphology• Bankfull width, depth,
sinuosity, gradient
Habitat characteristics
• Wood and pool frequency, residual pool depth, substrate size
Biological characteristics
• Amphibians, benthic invertebrates
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Invasive Species Monitoring
• Invasive species identified as a critical threat to National Forests
• Opportunity for spatial distribution information and possible early detection
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Species of ConcernExperts from Oregon State Univ and Portland State Univ helped choose 23 species of primary concern.
Based on three criteria:
1. Invades stream or riparian habitats; and
2. On the Oregon Invasive Species Councils 100 most dangerous list or
3. Has a large management program which could benefit from additional spatial distribution knowledge
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Type Common name Genus species
Aquatic animals
New Zealand mudsnails Potamopyrgus antipodarum
Zebra mussels Dreissena polymorpha
Quagga mussels Dreissena rostriformis bugensis
Rusty Crayfish Orconectes rusticus
Red Swamp Crayfish Procambarus clarkia
Ringed Crayfish Orconectes neglectus
Northern Crayfish Oronectes virilis
Aquatic plants
Yellow Flag Iris Iris pseudacorus
Hydrilla Hydrilla verticillata
Parrot Feather Watermilfoil Myriophyllum aquaticum
Eurasian Watermilfoil Myriophyllum spicatum
Giant Reed Arundo donax
Brazilian Elodea Ergeria densa
Didymo Didymosphenia geminata
Terrestrial animals Feral Swine Sus Scrofa
Terrestrial plants
Japanese Knotweed Fallopia japonica
Cultivated Knotweed Polygonum polystachyum
Giant Knotweed Polygonum sachalinese
Old Man’s beard Clematis vitalba
Garlic Mustard Alliaria petiolata
Giant Hogweed Heracleum mantegazzianum
Himalayan blackberry Rubus discolor
English Ivy Hedera helix
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Protocol Development
• Opportunistic surveys were implemented during 2007 field season
• Adopted standardized survey protocols for 2008 field season
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Aquatic Methods• Plants - Each stream reach is
surveyed for invasive aquatic plants
• Animals - Benthic macroinvertebrate samples are used to detect presence of invasive snails, mussels, and crayfish.
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Terrestrial Methods
• Plants- Six time constrained searches are performed in the riparian area
• Animals- During large wood surveys, the site is examined for the presence of feral swine (digouts, feces, tracks)
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Documentation
• Field crews collect spatial information, photographs, and specimens
• Photographs and specimens are verified by experts
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Results
• In 2008, AREMP field crews surveyed 167 sites in 31 unique watersheds
• Himalayan blackberry was found at 16 sites in 7 watersheds
• Reed Canary Grass found at 2 sites in 1 watershed
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Challenges
• Commonly misidentified species - Garlic mustard and Giant Hogweed
• Funding is uncertain
• Data sharing among agencies
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The Future
• Continue to improve training and ID materials
• $$$- ~$7,000/year
• Standardize reporting pathways and data sharing
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Decontamination
• Field crews are potential vectors in the spread of invasive species
• AREMP is committed to good environmental stewardship
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Decontamination - Field Gear
• Gear types - waders, boots, nets, sieves, gloves, brushes
• Method - Scrub at stream, boil at camp
• Done prior to entering a new 6th field watershed
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Decontamination - Vehicles
• Gear types - Vehicles
• Method - High pressure car wash
• Done prior to entering a new 6th field watershed
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Questions?
Want to know more about AREMP?
Steve Lanigan, Team Leader 503.808.2261 [email protected]
Heidi Andersen, Field Coord 541.750.7067 [email protected]
visit our website at:http://www.reo.gov/monitoring/watershed-overview.shtml
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Acknowledgements• Tania Siemens & Sam Chan: Oregon State
University Sea Grant College Program and Extension
• Robyn Draheim: Portland State University’s Center for Lakes and Reservoirs
• Jeff Uebel: US Forest Service
• The 2007 and 2008 field crews who tested, questioned, and provided feedback on AREMP’s Invasive Species Program.
• Funding provided by: