hey! what are they doing over there?...kim m. goodwin, rick e. engel, and david k. weaver . 2010....
TRANSCRIPT
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Hey!
What Are They Doing Over There?
John RandallThe Nature Conservancy
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Barrow Island Biosecurity
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Cactus Moth…….
On it’s way to California’s Deserts??
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USDA-APHIS Plant Health
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Weed Detection DogsKim M. Goodwin, Rick E. Engel, and David K. Weaver . 2010. Trained Dogs Outperform Human Surveyors in the Detection of Rare Spotted Knapweed (Centaurea stoebe). Invasive Plant Science and Management: June-August, Vol. 3, No. 2, pp. 113-121.
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Biosurveillance for Emerald Ash Borerwith Cerceris fumipennis
Michael Bohne et al.
USFS & state agenciesCT, NA, ME, NH ,NY, RI, VT and U. Guelph
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Aquatic weed surveillance using Robotic Aircraft
Salah SukkariehUniversity of Sydney
Land & Water Australia
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W
Even here, weeds aren’t safe from the eye in the sky!
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Lateral Flow Devices to detect Phytophthora ramorum(the Sudden Oak Death Pathogen)
Like a pregnancy test – uses antibodies to detect specific proteins
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Rats on Pearl Island, New Zealand
Survivors ?
OR
Re-invaders?
James C. Russell Steven D. MillerGrant A. Harper
Hamish E. MacInnesMalcolm J. Wylie
Rachel M. Fewster2010. Biological Invasions
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Environmental DNA (eDNA) monitoring of Asian carp in the Chicago Area Waterway system
W. Lindsay Chadderton1, Christopher L. Jerde2, Andrew R. Mahon2, & David M. Lodge2
Science Serving Society
2 1
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Stalled Invasion Or Detection Limitation?
2001
2007 & 20092006
2007 & 2008 Silver carp
Bighead carp
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Detection limitations most likely Probability of detection using traditional methods in canal & at low densities is poor
Electric fishing – Effective down to 2-3 meters- Carp capable of avoiding electric field
Asian carp adept at avoiding static nets
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Science Serving Society
Inspired by other research using DNA based - indirect detection methods
Techniques in use for >20 yearsDNA from environment, e.g. feces, shed hair, sloughed skin
Ficetola et al. 2008. Bullfrog detection using environmental DNA from water samples. Biol. Letters 4, 423-425.
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Science Serving Society
Asian Carp environmental DNA
• Fish naturally shed sloughed cells in mucus, scales, feces, and urine
• Some cellular material will remain in suspension and can be collected
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Electric barriers
Areas sampled on - one date
- two dates
three or more dates
Environmental DNA sampling effort (April 2009 – June 2010: 1687 water samples collected)
Sampling effort inversely proportional to detection probability
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Electric barriers
Sampling effort inversely proportional to detection probability
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Data interpretation
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Bighead carpCommercial netBighead carp
Rotenone treatmentSilver carp - Electrofishing
Electrofishing: -Summer 2009 Invasion front
Supporting evidence Capture or observation of live Asian carp
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New detection of a 30-year-old population of introduced mongoose Herpestes auropunctatus on Kyushu Island, Japan Yuya Watari, Junco Nagata and Kimitake FunakoshiBiological Invasions DOI 10.1007/s10530-010-9809-5
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Self-resetting trapsGoodnature Limited, Wellington, NZ
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Florida Keys Python Patrol
“TREADMILLING”
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Assessment of eradication success was undertaken using attractive baits. The absence of exotic ants at bait stations and the return of native ants (such as the Savanna Strobe Ant (Opisthopsis haddoni) shown in this picture) indicated successful eradicationHoffmann & O’Connor 2004 Ecological Management & Restoration; Hoffmann 2010 Biological Inv.