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2006 "Volunteers Working With Invasives"
Grants Report Form

Display Report


Project Title: Invasive Plant Early Eradication Project
Region: 2
Station: Aransas National Wildlife Refuge
Contact Person:
Name and Phone Number
Darrin Welchert (361) 286-3559 ext. 223
Project Description:
(Up to 250 words)
This project provided information on the distribution, density, and composition of nonnative invasive plants within the Aransas National Wildlife Refuge. It also served to control the spread and stop the loss of habitat to invasive species. Currently several invasive species including salt cedar, Chinaberry, Chinese tallow, or others have been identified and treated within the refuge. In addition, several new invasive species (guinea grass, Brazilian pepper) have been reported nearby. This project significantly increased the Refuge in its efforts to detect and treat invasive species.
List of Invasives Species Targeted:Common NameScientific Name
  Chinese tallow Sapium sebiferum
salt cedar Tamarix spp.
Chinaberry Melia azedarach
buffel grass Pennisetum ciliare
vaseygrass Paspalum urvillei
Australian bluestem Bothriochloa bladhii
King Ranch bluestem Bothriochloa ischaemun
guinea grass Urochloa maxima
Johnson grass Sorghum halepense
Project Status: Completed
Project Completion Date
or Estimated Completion Date:


Volunteer Affiliation:
(Check all that apply)
VA_FriendsGrp                                 VA_Other
Volunteer Involvement:
Describe the type of work the volunteers performed. (Up to 150 words)
Volunteer involvement included two training sessions, invasive species mapping, and treatment data entry. The first training session was January 16-18, which included Weed Information Management System (WIMS) training. The objectives of this training were to provide a tool to generate quantitative data on invasive weeds to assist the Refuge in its management efforts. Engage volunteers in invasive plant management and feed area data on invasive species distributions to larger U.S.G.S national databases. Training was conducted and coordinated by Jenny Ericson, project coordinator, with the Division of Natural Resources. Volunteers mapped stands of Chinese tallow, Australian bluestem, and King Ranch bluestem. The second training was on May 11, and was given by U.S.F.W.S Biologist; Dave Rosen entitled Field Identification of Invasive Grasses and Sedges. The purpose of this course was to provide volunteers, state employees and Fish & Wildlife staff with the basic skills necessary to distinguish between native and non-native grasses and sedges.
Total Number of Volunteers: 13
Total Number of Volunteer Hours: 432
List both new and existing partnerships utilized in this project. (Up to 150 words).
With the help of this project a new partnership was formed with Goose Island State Park. Existing partnerships include Texas Master Naturalists, Friends of Aransas and Matagorda NWRs (FAMI), U.S.F.W.S. Coastal Program, U.S.F.W.S. Clear Lake ESO, and Coastal Bend Bays and Estuaries Program (CBBEP).


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).
Approximately 700 acres (5040 acres total with additional funding from CBBEP, FAMI, and WIMS) were surveyed and mapped. Invasive species were encountered and treated on 75 acres (1680 acres total with additional funding) and 91 sites (304 sites with additional funding). The control rate for the above mentioned treatments was over 80%.
Number of Acres Treated: 75 acres (1680 acres with additional funding)
Number of Acres Inventoried and/or Mapped: 700 acres (5040 acres with additional funding)
Number of Acres Restored: 60 (1344 acres with additional funding)


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

Total Grant Amount:

$ $9,000.00

Breakdown of Expenditures:


Total $ Spent
% of Total Grant
Equipment / Supplies $8,881.50 98.7%
Biocontrol Agents
Travel $118.50 1.3%
Volunteer Stipends
Volunteer Coordinator Salary/Contract
Restoration Materials
TOTAL $9,000.00 100%

Recommendations: (OPTIONAL)
How useful was this program for meeting refuge invasive species objectives and how can it be improved?
This program was crucial in providing Aransas NWR with the support to achieve our objectives regarding invasive species management. Without programs such as this it would be difficult to reach the goals and mission set forth by the U.S. Fish and Wildlife Service (Service) and the National Wildlife Refuge System. Volunteer efforts such as this help the Refuge by educating people outside of the Service in the importance of documenting and treating invasive species.


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