Alaska Spartina Prevention, Detection and … Spartina Prevention, Detection and Response Plan Gino...
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Alaska Spartina Prevention, Detection and Response Plan Gino Graziano Division of Agriculture [email protected] 907‐745‐8127
Transcript of Alaska Spartina Prevention, Detection and … Spartina Prevention, Detection and Response Plan Gino...
Specialthankstotheplanauthors
VanessaHowardMorganandMarkSytsmaAquaticBioinvasionResearchandPolicyInstitute
CenterforLakesandReservoirs
PortlandStateUniversity
Biology• Cordgrass• 17speciesworldwide,4
introducedtoNorthAmerica
• Spartinaanglica,S.alterniflora,S.densiflora,S.patensandhybrids
• NativetotheEastCoast• Perennial,Rhizomatous
grass• Densestemsandthick
roots• Adaptedtogrowin
marineenvironment
PhotosbyJosephM.DiTomaso,UniversityofCalifornia‐Davis,Bugwood.org
Biology• Spreadsbyseedorrootfragments
• Plantpiecesmayfloatfortwomonthsormore
• Originallyintroducedforerosioncontrolandforage
• Transformsmudflatsintosaltmarsh
• Spartinacomplexranked86/100
PhotosbyJohnM.Randall,TheNatureConservancy,Bugwood.org
Impacts
• Increaseelevationoftidalareas
• Eliminatesuseofareabyshorebirds
• Shiftfromalgae‐basedfoodwebtodetrital
• KachemakBayandCopperRiverDeltasupport1.1millionshorebirds
Spartinainvasionofmudflatsresultsinsedimentaccretion,anincreaseinelevation,andalterationofestuarinehydrology.
Impacts• Lossofeelgrass
– Losstowatefowlandinvertebrates
• AssociatedwithGreencrab(Carcinusmaenas)
• Clammingindustry‐losthabitat
• Dungenouscrab‐alteredinvertcommunitiesandsalmonids
Vectors
• Solidballast‐BargesandtheYaquinaUSACEvessel
• Contactwithhulls• Ballastwater‐notlikely• Transportofliveshellfish–notlikely
• Migratorybirds
• Floatingseedsandwrack
WillSpartinainvadeAlaska?
WheretoLookAlaskaShorezonemappingidentifiessuitablehabitats
Highlysuitable Moderatelysuitable
Climatemodelingforsuitablehabitat
HowtoperformEarlyDetection
• Combinedatafromclimateandhabitatsuitability
• Reviewhistoryofoysterspat/equipmentimportations
• Inventoryareas‐active• Trainvolunteerstodetect‐passive
• Trainkeyfieldcrewstaff‐passive ResurrectionBaybeachcleanup
RelativecosteffectivenessofinventorymethodsinOR
EarlyDetectionReportingSystem• 1‐877‐invasiv• Trainingsinkeycommunities• EDDMapS.org/alaska/• Alaskainvasives.org• CNIPM.org
Daddy,IthinkIsawsome
purpleloosestrife.
GotoAlaskainvasives.organdreportexactlywhereyou
sawit.(Daddysaid)
Whattodoifwefindit• Delimitinfestedarea• Atminimumremoveinflorescense
• Verysmallinfestationsmaybedug
• Mostinfestationswillrequirepesticidetreatmentorcovering
• NeedDECand/orNEPApermitstousepesticides
ControlwithHabitat(a.i.Imazapyr)andcovering
Coordination–therealchallenge• Inter‐departmentMOUtosupportplan
• Identifyleadagency• ListSpartinasp.asnoxious
• Emergencyfund
• Developpermits• Participateinregionalstrategies
• Determinereadinessforrapidresponse
Thequestioniswhen?
