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2007 "Volunteers Working With Invasives"
Grants Report Form

Display Report


Project Title: Volunteer-assisted invasive plants inventory of riparian corridors
Region: 7
Station: Tetlin National Wildlife Refuge
Contact Person:
Name and Phone Number
Merben R. Cebrian (907) 883-9410
Project Description:
(Up to 250 words)
Riparian corridors provide an avenue for the spread of invasive plants. There are three major riparian corridors within 32.2 km (20 mi) from the Alaska-Canada border that intersect the Alaska Highway leading into Tetlin Refuge lands. These riparian corridors are Scottie Creek, Desper Creek, and Gardiner Creek. Invasive plants established along bridge abutments over these creeks can potentially be dispersed during spring run-offs and high water events, bringing seeds or uprooted individual plants downstream and into Refuge lands. Two of the creeks crossing the Alaska Highway (Scottie and Desper Creeks) flow into the Chisana River, which joins the Nabesna River to form the Tanana River. These river systems help define Tetlin Refuge as an important nesting ground for migratory waterfowl. We will inventory Scottie and Desper Creeks and the Chisana and Nabesna Rivers for invasive plants in the summer of 2007. One Refuge biologist and one volunteer will use a small boat to systematically inventory every 0.4 km (ΒΌ mile) segment of the creeks for invasive plants. The primary target is white sweetclover (Melilotus alba), although invasive plants that are known to occur outside of Tetlin Refuge boundary will also be targeted. Early Detection and Rapid Response (EDRR) principles will be employed. If invasive plants are encountered, the location will be recorded, % cover will be estimated, and invasive plants will be pulled. Large infestations will be evaluated for future control options. Data will be compiled in the Refuge Lands Geographic Information System (RLGIS) geodatabase.
List of Invasives Species Targeted:Common NameScientific Name
  white sweetclover Melilotus alba
alsike clover Trifolium hybridum
foxtail barley Hordeum jubatum
others, opportunistically
Project Status: Completed
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)
Volunteer assisted in creating and entering data in geodatabase, fieldwork collecting data using a handheld GPS receiver, surveying potential areas of infestations, and equipment maintenance and upkeep.
Total Number of Volunteers: 1
Total Number of Volunteer Hours: 139
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).
Maps were created for the two surveys conducted. Invasive plants were detected at three sites. All detected infestations were pulled. Georeferenced data are archived and are stored in RLGIS geodatabase.
Number of Acres Treated: 1
Number of Acres Inventoried and/or Mapped: 610
Number of Acres Restored: 0


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

Total Grant Amount:

$ 6,000.00

Breakdown of Expenditures:


Total $ Spent
% of Total Grant
Equipment / Supplies $1000.00 17%
Biocontrol Agents
Volunteer Stipends $988.00 16%
Volunteer Coordinator Salary/Contract $4012.00 67%
Restoration Materials
TOTAL 6000.00 100%

Recommendations: (OPTIONAL)
How useful was this program for meeting refuge invasive species objectives and how can it be improved?
This program was very useful in identifying invasive plant threats and potential avenues of spread into Refuge lands. We recommend additional funding for volunteer-assisted research into herbicide applications in cold climates and their fates in cold soils and waters as well as their effects on riparian corridors.


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