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  habitatmatters.org


Source Population Treatments


What is a Source Population? How are they managed?

  • A source population is a large area covered with one or more invasive species. In ISN’s service area, major source populations are usually invasive Phragmites, Japanese knotweed (and other invasive knotweeds), baby’s breath, and autumn olive.
  • Source populations are a risk to our region because, as the name implies, they act as a source.  Fragments of the plants or their seeds can travel to new areas, creating satellites (and eventually a new massive source). Of course, these populations are negatively impacting our native habitats.
  • Treatment of source populations is very difficult, making these populations lower priority for ISN.  They’re often large enough to be very expensive, and the areas usually span multiple ownerships and require many years of treatment.  The goal in treating these massive areas is to use large-scale funding to bring the population down to a manageable, “maintenance” level where local funding or groups may take over.
  • Some source populations may not be able to be treated because of these many obstacles.

What is ISN doing about Source Populations?

Through funding from the Environmental Protection Agency, US Forest Service, and the Michigan Invasive Species Grant Program, ISN has been able to work on source populations throughout our service area
  • Phragmites: 
    • GT Bay
    • Manistee Lake
    • Betsie Bay
  • Baby's Breath:
    • Elberta Beach
    • Assisting Michigan Dune Alliance partners with baby's breath throughout our service area
  • Invasive Knotweeds:
    • Veterans Oak Grove Drive area (Manistee) 
Picture

Contact US

231-252-4148
3334 Veterans Drive Unit A
Traverse City, Michigan 49685
Pleasant Peninsula Design, Habitat Matters 2025
  • Home
  • About
    • Contact Us
    • About ISN & FAQs
    • Our Team
    • Our Partners
    • ISN Board of Directors
    • Employment
    • Enewsletter
    • Blog - Notes from ISN
  • Events
  • ID & Report
    • Top 12 Species
    • Early Detection Species
    • Awareness Species
    • Other Invasive Species >
      • Hemlock Woolly Adelgid
      • Aquatic Invasive Species
      • Lymantria Moths (spongy moth)
    • ID and Reporting Tools
  • Resources
    • Videos
    • Education
    • Tool Library
    • Garlic Mustard Dumpsters
    • Planting Guide/Ordinance Templates
    • Requests For Bids
    • Treatment Information
    • Other Information
    • Invasive Species in the News >
      • ISN in the News
  • Go Beyond Beauty
    • Find Participants >
      • Nurseries/Garden Centers >
        • Bioconcentric Farms
        • Birdsfoot Native Nursery
        • Black Cap Farms
        • Bright Lane Gardens
        • Four Season Nursery
        • Garden Goods
        • Greystone Gardens
        • Pine Hill
      • Landscapers/Professionals >
        • Cre Woodard
        • Designs in Bloom
        • Greener Earth Landscaping
        • Heritage Landscape Design
        • Inhabitect, LLC
        • Lakeview Habitats
        • Laurel Voran, LLC
        • The Mossy Tree, LLC
        • Old Mission Associates
        • Inner-Coastal
        • Pine Hill
        • Silverman & Company
        • Sustainable Landscape Design, LLC
        • TruNorth Landscaping
        • Wildlife & Wetland Solutions
      • Community Participants
    • GBB Achievement Program
    • Register >
      • Registration Form (Garden Professional)
      • Registration Form (Individual or other org)
      • Start-up Materials
    • Ornamental Invasive Species
    • Native Plant Species
    • Participant Signs
    • Japanese Barberry Trade-Up Day
    • GBB Resources
  • Donate to ISN
  • Merchandise