Invasive spp. Early Detection for Longview Timber 4.29.10
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This document provides an overview of invasive species identification and management for volunteers. It defines invasive species and their impacts, and discusses their life cycles and management strategies including prevention, early detection and reporting, and control methods. The presentation introduces 11 common invasive plants in the region and how to identify them. It emphasizes the importance of not becoming a vector in spreading invasives and provides resources for further information.
Invasive spp. Early Detection for Longview Timber 4.29.10
- 1. Clatsop County Early Detection Invasive Species NetworkInvasive-Watch TrainingAugust 19, 2009
- 2. Invasive Species 101What are invasive species?Management & your role in it.Introduction to the invadersReporting invasionsVector issues
- 3. invasive species is an alien species whose introduction does or is likely to cause economic or environmental harm or harm to human health
- 6. Biological invaders destroy habitats or out-compete native plants and animals.Why should you care?Invasive species costAmericans about $143 billion per year.At least 30 new potential biological invaders enter the US every day.
- 7. What makes a plant invasive?Lack normal environmental constraintsFast growth and reproductionHighly adaptable a wide range of conditionsOften can transform their environmentOften encouraged by disturbanceDominance = less biodiversity
- 8. How do we manage invasive plants?PreventionQuarantine before introductionMonitoring & mappingChemical treatment (herbicides)Biological controls (biocontrol)Cultural treatment (hand pulling, cutting, etc.)
- 10. Key Stages in Plant InvasionsEscapeLag TimeInvasionIntroductionCostArea InfestedTime
- 11. What does this mean for management?People notice them hereIntroductionDetection: focus resources herePrevention or Eradication(Inexpensive)Local control and management only (Expensive)Area InfestedControl Costs Time
- 12. Eleven Invaders
- 13. Keys to Identifying the InvadersFlowersLeaves and stemsHabit (vine, herb, grass, rosette, etc.)Developing a “search pattern”Key characteristics (odor, reflectivity, color)
- 14. Herb Robert: Geranium robertianum
- 15. Rebecca Brown, Eastern Washington University
- 17. Jorge PenafielShining Geranium: Geranium lucidum
- 19. Photos: Christine McDonaldPoliceman’s Helmet: Impatiens gladulifera
- 21. Glenn Miller, ODAGarlic Mustard: Alliariapetiolata
- 22. Glenn Miller, ODAGlenn Miller, ODAElizabeth J. Czarapata
- 24. Jan Samanek, State Phytosanitary Administration Old Man’s Beard: Clematis vitalba
- 26. Leo Michaels
- 30. Spurge Laurel: Daphne laureolaCarla Cole, NPS
- 31. Carla Cole, NPS
- 33. Carla Cole, NPS
- 34. © Andrea Thorpe, Insttute for Applied EcologyFalse Brome: Brachypodiumsylvaticum
- 35. © Andrea Thorpe, Insttute for Applied Ecology
- 36. © Andrea Thorpe, Institute for Applied Ecology
- 37. Photo: Robert Emanuel, OSUYellow Archangel: Lamiumgaleobdolon
- 38. Photo: Robert Emanuel, OSU
- 39. Photo: Alexander DunkelPhoto: Julio ReisFalse Indigo: Amphora fruticosa
- 40. Photo: JorgHempelLesser Celandine: Ranunculus ficaria
- 42. Taking NotesExample: “ODOT gravel pit on Hwy 26”Early Detection Report FormDate:________ Observer:__________________Location:__________________________________________________________________________Plant Species:_____________________________Patch Size: Length________ Width___________ % cover____________# of plants_____________Type of site (riparian, road, forest, trail, etc):_________________________________________Notes (landowner, location, physical description, directions, etc.) ___________________________________________________________________________________________________________________________Example: “Old Man’s Beard”Length: 10’ Width: 5’% cover: 50% of trees# of plants: 2-6 “Forest and road cut”“Located on ODOT land? Vines growing up spruce trees and into rock”
- 43. Don’t be a Vector!Clean your clothes Clean your equipment & vehicleClean your petsWalk around the infestationBag/trash, burn, no compostIf collecting voucher in flower or fruit, seal itJ.K. Linsey
- 46. Invasive Spp. Web ResourcesOregon Invasive Species Hotline:oregoninvasiveshotline.org/National Invasive Species Clearinghouse: www.invasivespeciesinfo.govWashington State Noxious Weed Board: www.nwcb.wa.gov/index.htmCalifornia Invasive Plant Council:www.cal-ipc.org USDA PLANTS Database: plants.usda.gov/index.htmlPresentation Recap:
- 47. Questions?Robert M. Emanuel, Ph.D.Water Resources & Community DevelopmentClatsop & Tillamook counties2204 Fourth StreetTillamook, OR 97141(503) 842-5708 X 2 robert.emanuel@oregonstate.edu
Editor's Notes
- #10: Why are invasions like wildfires?Have distinct mechanisms for movementNeed fuel & proper conditions for growthJump barriers by means of spot firesCan sit as “sleepers”Transform landscapes and ecosystemsTherefore, to manage the “fire” we should:Know where the fire isKnow the mechanisms that fuel its spreadIdentify spotfires & extinguish before they spreadStop new blazes before they become conflagrationsPREVENTION IS THE KEY
- #22: 1st year form: 12” high rosetteLeaves: kidney-shaped, scallopedGarlicky odorS-shaped root
- #23: 2nd year form: elongated flower stalkLeaves: alternate on stem, toothed, triangularGarlicky odorS-shaped rootFour white petals per flower
- #36: Veg characteristics:Hairy leaf marginLong-lasting bright green colorHairy lower stemLeaves are 4-10 mmLeaves are very laxSheath open (other bromes have closed sheath)Ligule is 3-4 mm
- #37: Flower characteristicsSpikelets on very short stalks (Columbia brome has long stalks)Flower spikes droop