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Volunteer Invasives Mapping Project Report

Display Report


First Year of Project
Station: Rocky Mountain Arsenal NWR
Region: 6
Contact Person: Lorenz Sollmann
Contact Phone Number: 303-289-0927
Date Report Submitted:

List Type and/or Affiliation(s) of Volunteers: Refuge habitat volunteers
Total Number of Volunteers Trained to Map: 3
Total Number of Volunteer Hours Spent Mapping: 140

List of Invasives Species Mapped:Common NameScientific Name
  Houndstongue Cynoglossum officinale
Diffuse knapweed Centaurea diffusa
Spotted Knapweed Centaurea maculosa Lam.
Canada Thistle Cirsium arvense
Leafy Spurge Euphorbia esula
Dalmation Toadflax Linaria genistifolia
Common Mullein Verbascum thapsus
Russian olive Elaeagnus angustifolia L
Which, if any, of these Species are Early Detection Species: Houndstongue, Leafy Spurge, Dalmation Toadflax, Diffuse and Spotted knapweed
Total Number of Acres Mapped (since project initiation): 665
Have You Shared Mapping Data with USGS in Ft. Collins? Yes

Describe Projects Initiated with Follow-Up Funds ($10,000): Hired a seasonal bio-tech to help with training volunteers, quality control of data management, and mapping priorities. This year was the first time that we hired a STEP student for this position. This was very successful. Additionally we used the GPS unit and historic information on weed location to check on success of past years control efforts
Total Number of Acres Treated with Follow-up Funding: 160
Total Number of Acres Restored with Follow-up Funding: 0
Total Number of Volunteers Engaged in Treatment and/or Restoration: 4


How has this Project Benefited Invasive Species Management Efforts at Your Station? This report is actually for 2008 information. Due to staff relocation before this report was completed, the information is only now being entered. Having this project has given new and former volunteers the opportunity to learn new skills, and apply these to the things they enjoy in the outdoors. It has given the station the opportunity to collect additional baseline data on weed distributation above the usual target species. This information is also added to our historic data and is helping to complete a better picture of the trends in our weed infestations over time. With that information the refuge staff can better utilize the limited resources of staff time and equipment to eradicate weeds.
What are some of the Lessons Learned and/or Troubleshooting Points that could be Shared with Others Engaged in Similar Activity?
As had been mentioned before that, in the training, it is important to teach the volunteers how to estimate plant cover percentages (i.e., what percent of the ground is covered by what) in a standard manner. Also, in the case of the mapped portion of the Russian olive the acres were small comparerd to the actual number of trees removed. In this case the removal covered only 8 acres but we actually removed 3,000 trees which were stump treated and piled for later burning.


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