Strategies for Landscape Control and Containment of False-brome
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Strategies for Landscape Control and Containment of False-brome Tom Kaye Institute for Applied Ecology Corvallis, Oregon. A ‘contagious’ species. Full geographic spread in North America is broadening Present in Oregon, California, Washington (?), New York, Virginia, Michigan ….

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A ‘contagious’ species

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A contagious species

Strategies for Landscape Control and Containment of False-bromeTom KayeInstitute for Applied EcologyCorvallis, Oregon


A contagious species

A ‘contagious’ species

  • Full geographic spread in North America is broadening

  • Present in Oregon, California, Washington (?), New York, Virginia, Michigan …

New York, Steven Daniel

California, Esa Crumb

Oregon


Disperses easily

Disperses easily

  • Equipment

  • Clothing

  • Pets

  • Wildlife (deer)

  • Water?


Invasiveness

Invasiveness

  • Enemy Release Hypothesis

    • Roy et al. 2011

  • Evidence of within-species hybridization, multiple introductions to western US

    • Rosenthal et al. 2008


Landscape invasion typical process for false brome

Landscape invasion:typical process for false-brome

  • Starts in areas where people and wildlife travel:

    • Roadsides, Parking lots, Trailheads

  • Spreads rapidly along roadsides and forest edges

  • Also spreads quickly into closed-canopy forest

  • Spreads more slowly into prairies and pastures – but facilitated by isolated trees


False brome invasion

False brome invasion

forest

grassland


Landscape control strategies

Landscape control strategies

  • Detect and control new and isolated patches

  • Contain large populations

    • Start with reducing seed production or eliminating plants in high traffic areas – Stop the spread!

      • Roads, trailheads, parking areas, hiking trails, game trails

  • After containment, move to eradication if feasible


False brome invasion1

False brome invasion

forest

grassland


False brome invasion2

False brome invasion

forest

grassland


Landscape control strategies1

Landscape control strategies

  • Establish partnerships, especially with adjacent landowners

    • Neighbors

    • Agencies

  • Use existing networks, if possible, to coordinate

    • Example: Middle Fork Willamette Watershed Council with funding from OWEB, NFWF

      • Coordinated survey across multiple properties, outreach and education, control opportunities


Landscape control strategies2

Landscape control strategies

  • Land management activities

    • Before:

      • Eradicate false brome to avoid spreading to other sites

      • Clean equipment before entering new areas

    • After:

      • Clean equipment before leaving

    • Adopt strict contract language that stipulates these actions, with consequences.

  • Public outreach

    • Stop invasions before the start


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