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National Park Service Alaska Region

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					National Park Service, Alaska Region
Exotic Plant Management Team
        Program
       Objectives
• Regional strike team
   –   Prevention
   –   Detection
   –   Control
   –   Monitoring
   –   Restoration


• Inventory needed to
  prioritize particular
  species and sites
                                           Spotted Knapweed
                                         (Centauria biebersteinii)
Exotic Plants in Alaska
• >100 species in early
  stages of invasion
• 54 million acres of
  NPS lands, mostly
  restricted to
  disturbance
• Early detection and
  rapid response
• Mapping essential for
  planning, execution,
  recording, and
  evaluation
                       Japanese knotweed         Cheatgrass
                     (Polygonum cuspidatum)   (Bromus tectorum)
    GPS Survey
     Protocol
• Trimble GeoXT units with
  custom data dictionary

• Observer chooses point,
  line, or polygon
                             • Ecological Fields:
• Spatial Fields:               –   Species, phenology
   – Associated Park            –   Percent cover, stem count
   – Location description       –   Disturbance type
   – Buffer width               –   Action taken
                                –   Control effort
    From GPS
      to GIS
• Pathfinder Office
  – differential correction
  – spatial editing
  – export GIS shapefile
• ArcGIS
  – Buffer using the
    Geoprocessing
    Toolbox
  – Merge polygon
    shapefiles into 1 for
    all annual activity
   Data Utility
• Map generation for
  planning/prioritization
• Monitoring infestations
  and determining rate
  of spread
• Evaluating control
  success
• Relocating infestations
• Calculating acreages
  for reporting

• Precision is essential
            Statewide Database
          akweeds.uaa.alaska.edu
• Developed in partnership
  with Forest Service,
  Natural Heritage
  Program, and Alaska
  Science Center
• Track species
  distributions across
  boundaries
• Web-enabled data entry
  for exotic plant locations
• Share information on
  species’ biology and
  control/restoration
  strategies
               Summary
• Exotic plants are a rapidly growing threat
  to Alaskan ecosystems
• Appropriate management requires regular
  field surveys and mapping
• Modern GPS & GIS tools enable greater
  range of data utility
• The more eyes (and GPS units) the better
  for finding and reporting these plants!
The object of our conservation efforts…
          For further info:
  Jeff_Heys@nps.gov or 644-3451

				
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