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2008 "Volunteers Working With Invasives"
Grants Report Form

Display Report


Project Title: Oregon Coast Invasive Species Mapping, Monitoring and Eradication program.
Region: 1
Station: Siletz Bay National Wildlife Refuge
Contact Person:
Name and Phone Number
Jim Johnson, 541.867.4550
Project Description:
(Up to 250 words)
Siletz Bay NWR contains a variety of coastal habitat types including salt marsh, brackish marsh, tidal sloughs, mudflats, and coniferous and deciduous forestland. The primary ecological goal for refuge habitats is to allow natural tidal processes to guide estuary function with little human influence. This holds true for the marshlands but is more difficult to achieve in the surrounding uplands and forestlands due to the presence of invasive species including English Ivy (Hedera helix), Himalayan Blackberry (Rubus armeniacus), Scotch Broom (Cytisus Scoparius) and Tansy Ragwort (Senecio jacobaea). In these areas hands-on weed control is imperative to prevent the further spread of invasive species and subsequent degradation of the forest. This project would use volunteers to detect, identify, map, treat and monitor invasive plants species on all uplands within Siletz Bay NWR. Volunteers would use hand-held GPS units to collect data on areas currently infested; GIS would then be used to maintain an invasive species database and create maps as needed. Mapping would be used to both monitor the progress of treatment and predict the vulnerability of areas not currently affected by invasive species. This will assist refuge staff and volunteers in prioritizing future treatments.
List of Invasives Species Targeted:Common NameScientific Name
  English ivy Hedera helix
Himalayan Blackberry Rubus armeniacus
Scotch Broom Cytisus Scoparius
Giant Horsetail Equisetum praealtum
Project Status: InProgress
Project Completion Date
or Estimated Completion Date:


Volunteer Affiliation:
(Check all that apply)
Volunteer Involvement:
Describe the type of work the volunteers performed. (Up to 150 words)
The volunteers mapped 175 acres of refuge lands for invasive species including the following units: Schooner Creek, Algers, North Bank, Watson, South Island, Siletz Keys, and Old Hwy 101. The volunteers then treated, both chemically and mechanically, 3.3 acres that were infested with Himalayan blackberry, Scotch broom, Giant horsetail and English ivy.
Total Number of Volunteers: 4
Total Number of Volunteer Hours: 400
List both new and existing partnerships utilized in this project. (Up to 150 words).


Project Results:
Give an overview of the results of the project. Include quantifiable measure of success, such as maps produced, efficacy of control measures, number of sites where invasions were detected early and responded to, number of community contacts, etc. (Up to 250 words).
Removal of invasives species by refuge volunteers is continueing on Siletz Bay NWR. To date 3.3 acres of refuge lands have been cleared of invasive species and 175 acres has been mapped by volunteers using a hand-held GPS unit. The data are currently being used to develop an invasive species map for the refuge. Maps will be used to both monitor the progress of treatment and predict the vulnerability of areas not currently affected by invasive species. The maps will also assist refuge staff and volunteers in prioritizing future treatments.
Number of Acres Treated: 3.3
Number of Acres Inventoried and/or Mapped: 175
Number of Acres Restored:


Budget: Account for funds in broad categories such as equipment, volunteer stipends, travel, coordinator salary/contract, etc.

Total Grant Amount:

$ $8,500

Breakdown of Expenditures:


Total $ Spent
% of Total Grant
Equipment / Supplies $5880.27 69%
Chemical $391.00 5%
Biocontrol Agents
Volunteer Stipends $2228.73 26%
Volunteer Coordinator Salary/Contract
Restoration Materials
TOTAL $8,500.00 100%

Recommendations: (OPTIONAL)
How useful was this program for meeting refuge invasive species objectives and how can it be improved?


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