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2009 "Volunteers Working With Invasives"
Grants Report Form

Display Report


Project Title: Invasive Spartina densiflora control in salt marsh
Region: 8
Station: Humboldt Bay NBR
Contact Person:
Name and Phone Number
Andrea Pickart 707-822-6378
Project Description:
(Up to 250 words)
Humboldt Bay NWR restored and/or maintained 30 acres of salt marsh dominated by Spartina densiflora. Volunteers were deployed to test and implement digging methods for small, accessible occurrences, to carry out revegetation with native plants, to lead guided educational tours, give elementary level classroom presentations, lead elementary school tours, and to mentor elementary students in science fair projects. Work was done in collaboration with Friends of the Dunes and other groups. A brochure on coastal dunes and wetlands was updated to feature salt marshes and Spartina issues.
List of Invasives Species Targeted:Common NameScientific Name
  dense-flowered cordgrass Spartina densiflora
Project Status: InProgress
Project Completion Date
or Estimated Completion Date:


Volunteer Affiliation:
(Check all that apply)
VA_FriendsGrp     VA_SchoolGrp        VA_GradIntern            VA_CivicOrg        VA_Other
Volunteer Involvement:
Describe the type of work the volunteers performed. (Up to 150 words)
Volunteers came to several organized volunteer days, including revegetation days where they planted native plugs (that had been harvested by staff) into restored areas. On the "Spartina ShinDIG" 60 volunteers were used to carry out manual removal of accessible isolated plants using shovels. During this event, students from a university class oversaw timing of methods so that they could be quantitatively assessed. Volunteers from Friends of the Dunes coordianted the event and volunteers from Friends of HBNWR cooked a BBQ using donated food. A tshirt design was created by a volunteer. Five Graduate interns attended classroom field trips led by Friends volunteers for 5th graders. The Friends volunteers previously did an in classroom presentation. The grad interns are now mentoring five fifth grade students through the science fair process, focusing on salt marsh/Spartina related projects. Volunteers from the California conservation corps used brush cutters to mechanically remove spartina from larger areas. Volunteers from CDF raked and burned Spartina. An evening program was coordianted by Audubon Society and Friends of the Arcata marsh to educate the community on the need for regional control.
Total Number of Volunteers: 200
Total Number of Volunteer Hours: 2,100
List both new and existing partnerships utilized in this project. (Up to 150 words).
Friends of the Dunes, Friends of Humboldt Bay NWR, CalFire, California Conservation Corps, Humboldt State University Natural Resources Club, California Native Plant Society, California State Coastal Conservancy, Humboldt Bay Harbor, Recreation, and Conservation District, Redwood Region Audubon society, Friends of the Arcata Marsh, Humboldt State University Departments of Biology and NR. College of the Redwoods dept of Biology.


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).
The project was extremely succesful. We have cleared and maintained 35 acres of salt marsh, with quantitative monitoring demonstrating that native recovery in earliest restored areas is close to 100%. We were able to test manual removal methods and found that they are efficient for small isolated accessible clusters. The Dunes Unit of hte refuge are now all at a maintenance level, and the south refuge has been begun. At the same time, we have been working with the state coastal conservancy on a needed regional eradication. They have hired a consultant to prepare a regional eradication plan to be completed by 2011.
Number of Acres Treated: 35
Number of Acres Inventoried and/or Mapped: 55
Number of Acres Restored: 30


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

Total Grant Amount:

$ 56,000

Breakdown of Expenditures:


Total $ Spent
% of Total Grant
Equipment / Supplies 18,000 32
Biocontrol Agents
Volunteer Stipends 18,000 32
Volunteer Coordinator Salary/Contract 17,500 31
Restoration Materials
Other 2,500 4
TOTAL 56,000 100

Recommendations: (OPTIONAL)
How useful was this program for meeting refuge invasive species objectives and how can it be improved?
This project was EXTREMELY useful and allowed us to leverage a large amount of match $$ for much needed contracted work. Not all work can be done by volunteers. It would be helpful to have some of this funding available for contractors for work that can't be done by vols.


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