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2010 "Volunteers Working With Invasives"
Grants Report Form

Display Report


Project Title: Remote Sensing for Detection of Invasive Flowering Rush
Region: 31540
Station: Ottawa National Wildlife Refuge
Contact Person:
Name and Phone Number
Ron Huffman 419-898-0014 ext.28
Project Description:
(Up to 250 words)
Flowering rush is an exotic wetland plant with wide spatial distribution with a major focus of invasion along the Western Lake Erie basin. This project seeks to develop remote sensing products for detecting and mapping flowering rush to assist Ottawa NWR managers and other federal, state, and local agencies with rapid prioritization of treatment and deployment of resources for control. The specific objectives proposed are: 1. Evaluate the spectral signals of the flowering rush throughout different seasons and how these signals degrade with image acquisition spatial scale. 2. Evaluate different remote sensing image products for broader mapping of flowering rush across the landscape. 3. Determine mapping strategies specific to time or water level management. Preliminary work will include detailed ground spectroradiometer measurements. The project also includes the repeated ground truthing of flowering rush areas and correlating water levels over the field season.
List of Invasives Species Targeted:Common NameScientific Name
  Flowering Rush Butomus umbellatus L.
Project Status: InProgress
Project Completion Date
or Estimated Completion Date:


Volunteer Affiliation:
(Check all that apply)
            VA_GradIntern                    VA_Other
Volunteer Involvement:
Describe the type of work the volunteers performed. (Up to 150 words)
BGSU (Bowling Green State University) graduate and undergraduate interns will conduct repeated ground truthing of flowering rush control areas with both flowering rush and native plant distribution over the field season. Intern will also collect correlating water levels. BGSU graduate interns will work on spectrally characterizing flowering rush and other different cover types located at Ottawa NWR. The interns will also evaluate and compare the different spatioal scale imagery that will be collected. Volunteers from Ottawa NWR will assist in mapping areas of flowering rush in the 2011 field season.
Total Number of Volunteers:
Total Number of Volunteer Hours:
List both new and existing partnerships utilized in this project. (Up to 150 words).
Bowling Green State University


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).
Required aerial photography was flown in June, 2010. Preliminary detailed ground spectroradiometer measurements were collect for both each flight path and flowering rush distribution control areas. Ground truthing was conducted in a few random select flowering rush control areas. Ground truthing consisted of collection of flowering rush and native plant samples along with general water level measurements. BGSU gradute intern is currently evaluating the spectrally characterizing of flowering rush and other different cover types located at Ottawa NWR.
Number of Acres Treated: In-progress
Number of Acres Inventoried and/or Mapped: 4600 acres in progress
Number of Acres Restored: In-progress


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

Total Grant Amount:

$ $24,000.00

Breakdown of Expenditures:


Total $ Spent
% of Total Grant
Equipment / Supplies
Biocontrol Agents
Volunteer Stipends $3,802.34 15.9%
Volunteer Coordinator Salary/Contract
Restoration Materials
TOTAL $3,802.34 15.9%

Recommendations: (OPTIONAL)
How useful was this program for meeting refuge invasive species objectives and how can it be improved?
Recommendations would include additional BGSU interns and volunteers to assist with the ground truthing during the 2011 field season.


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