John Odell - 2-27-12

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John Odell - 2-27-12

  1. 1. Invasive Exotic Plants on the Appalachian Trail John Odell Resource Management Coordinator
  2. 2. What is an invasive exotic plant? <ul><li>Exotic – a species that exists outside of its native range (aka: non-native, alien, foreign, non-indigenous) </li></ul><ul><li>Exotic species have been introduced for livestock forage, human consumption, soil retention, ornamental purposes, or by accident </li></ul><ul><li>Invasive – an aggressive species that causes ecosystem disturbance and exhibits the following traits: </li></ul><ul><li>rapid growth and spread </li></ul><ul><li>establishes over large areas and persists </li></ul><ul><li>robust vegetative growth </li></ul><ul><li>high reproductive rate </li></ul><ul><li>lack of natural controls </li></ul>
  3. 3. Why are IE plants a problem? <ul><li>Invasive exotic plants out-complete native plants for sunlight, water, and nutrients causing a decline in native biodiversity </li></ul><ul><li>Species loss </li></ul><ul><li>Reduced habitat diversity (monocultures) </li></ul><ul><li>Reduced food availability for herbivores (less diverse, less palatable food sources) </li></ul><ul><li>Altered ecological functions </li></ul><ul><ul><li>Natural succession </li></ul></ul><ul><ul><li>Soil chemistry </li></ul></ul><ul><ul><li>Hydrology </li></ul></ul><ul><ul><li>Fire regime </li></ul></ul><ul><ul><li>Nutrient cycling / ecosystem efficiency </li></ul></ul><ul><li>Tree mortality from girdling or over-burdening </li></ul><ul><li>Economic, cultural, and aesthetic impacts </li></ul>
  4. 4. IE Plant Management on the A.T. <ul><li>Inventory prioritized by rare plant occurrences, IE vectors, accessibility </li></ul><ul><li>Control work performed by volunteers Early Detection Rapid Response </li></ul><ul><li>Communication with Trail maintaining clubs to identify and control invasive exotic plants </li></ul><ul><li>Education through workshops, publicity, conferences </li></ul><ul><li>Collaboration (SACWMP, Trail Clubs, Agency Partners, Volunteers) </li></ul>
  5. 5. Inventory on the A.T.
  6. 6. Control work on the A.T.
  7. 7. How can you make a difference? <ul><li>Learn about invasive plants and how to identify them </li></ul><ul><li>Clean boots, equipment, tires, and pets to prevent seed dispersal </li></ul><ul><li>Get involved in volunteer monitoring and control efforts </li></ul><ul><li>Remove invasives from your own backyard (small or large, you can make a difference) </li></ul><ul><li>Plant natives in your yard and gardens! </li></ul><ul><li>Know the source of fill dirt, gravel, and manure </li></ul><ul><li>Spread the word ! Tell friends and family the importance of preserving native ecosystems </li></ul>
  8. 8. 16 Species of Focus <ul><li>Shrubs </li></ul><ul><ul><li>Multiflora rose </li></ul></ul><ul><ul><li>Privet </li></ul></ul><ul><ul><li>Japanese spiraea </li></ul></ul><ul><ul><li>Japanese knotweed </li></ul></ul><ul><ul><li>Butterfly bush </li></ul></ul><ul><li>Trees </li></ul><ul><ul><li>Tree of Heaven </li></ul></ul><ul><ul><li>Autumn Olive </li></ul></ul><ul><ul><li>Princess Tree </li></ul></ul><ul><li>Vines </li></ul><ul><ul><li>Oriental bittersweet </li></ul></ul><ul><ul><li>Japanese honeysuckle </li></ul></ul><ul><ul><li>English ivy </li></ul></ul><ul><ul><li>Porcelain Berry </li></ul></ul><ul><ul><li>Kudzu </li></ul></ul><ul><li>Grasses / Groundcovers </li></ul><ul><ul><li>Japanese stiltgrass </li></ul></ul><ul><ul><li>Chinese silvergrass </li></ul></ul><ul><ul><li>Garlic Mustard </li></ul></ul>
  9. 9. Suggested Reading
  10. 10. GET INVOLVED! <ul><li>John Odell </li></ul><ul><li>Resource Management Coordinator </li></ul><ul><li>(828) 254-3708 </li></ul><ul><li>[email_address] </li></ul><ul><li>www.appalachiantrail.org/invasive </li></ul>

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