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Volunteer Invasives Mapping Project Report

Display Report


First Year of Project
Station: Aransas NWR
Region: 2
Contact Person: Darrin Welchert
Contact Phone Number: 361.286.3559
Date Report Submitted:

List Type and/or Affiliation(s) of Volunteers: Texas Master Naturalist & Refuge volunteers
Total Number of Volunteers Trained to Map: 5
Total Number of Volunteer Hours Spent Mapping: 248

List of Invasives Species Mapped:Common NameScientific Name
  Chinese tallow Sapium sebiferum
salt cedar Tamarix spp.
macartney rose Rosa bracteata
buffelgrass Pennisetum ciliare
vaseygrass Paspalum urvillei
Australian bluestem Bothriochloa bladhii
King Ranch bluestem Bothriochloa ischaemun
guinea grass Urochloa maxima
Johnson grass Sorghum halepense
Which, if any, of these Species are Early Detection Species: buffelgrass
Total Number of Acres Mapped (since project initiation): 805
Have You Shared Mapping Data with USGS in Ft. Collins? Yes

Describe Projects Initiated with Follow-Up Funds ($10,000): Additional funding has allowed the refuge to keep the mapping project going. The project has helped expand mapping efforts to additional units including Matagorda Island, Whitmire and Lamar. Further information was gathered to identify treating need for macartney rose on Matagorda Island. Over 300 acres was mapped in the effort to control this species.
Total Number of Acres Treated with Follow-up Funding: 70 acres
Total Number of Acres Restored with Follow-up Funding: 35 acres
Total Number of Volunteers Engaged in Treatment and/or Restoration: 1


How has this Project Benefited Invasive Species Management Efforts at Your Station? Projects such as this are vital to augment base funding. This funding has helped to give Aransas NWR the ability to expand mapping to additional units. The refuge now has a better understanding of invasive species distribution and abundance. However, more work needs to be done.
What are some of the Lessons Learned and/or Troubleshooting Points that could be Shared with Others Engaged in Similar Activity?
Timing of mapping events is sometimes key. Knowledge of target plant morphology is important for correct identification especially when training new staff and volunteers for identification.


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