San Antonio group tackles invaders

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The Balcones Invaders Satellite is a small group of thoughtful, committed citizens on a mission to change the landscape of Texas.

Cheryl Hamilton, Lonnie Shockley and Judith Shockley presented a lively and inspiring message at the recent Texas Invasive Plant and Pest Council Conference in Aransas Pass. Titled “Stop the Spread, Spread the Word, Just Do It,” their presentation described a three-pronged program of outreach, education and eradication. They are members of our San Antonio and Boerne chapters.

Balcones Invaders Satellite
L to R: Judith Shockley, Cheryl Hamilton, Lonnie Shockley. Photo by Robert Kamper.

Part of the Invaders of Texas program, the Balcones Invaders have held 16 workshops, trained 86 citizen scientists and written 50 articles while cutting down forests of nandina (Nandina domestica), giant reed (Arundo donax), and chinaberry (Melia azedarach) trees. They cover the area northwest of San Antonio, taking advantage of their work days to do outreach and publicity by bringing along a sign whenever they work in the field.

Camaraderie, honesty and inspiration are three of their cornerstone values for recruiting and retaining volunteers. Add to this a consistent schedule (two hours every Tuesday), division of labor, clear communications, flexibility, autonomy and in the field training (no prior experience required) and they have a self-sustaining group consisting of Master Naturalists, Native Plant Society members and newly trained citizen scientists, as well as college students recruited by their professors.

Outreach efforts include presentations to garden clubs, homeowner and neighborhood associations, Master Naturalists, Master Gardeners and Native Plant Society chapters, as well as articles in the newsletters for the Alamo Area Master Naturalists and Native Plant Society chapters. The Balcones Invaders get the word out through an email list and through the Master Naturalists website and the San Antonio and Boerne chapter websites.

The three ended their presentation with this observation from Margaret Mead: “Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has.”

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**ARCHIVED POST AUTHOR: rkamper

About the Region

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This low-elevations region of Texas extends inland from the barrier islands, about 60 or so miles, and stretches from Brownsville to Louisiana. In total, it covers about 9.5 million acres, with a high point of 150 feet in elevation. More than 1000 species of plants can be found in this region. On the southern end, species more common in Mexico (such as Sabal mexicana) and Central America occur.

The barrier islands provide us with dune systems, and clay flats to the inland side, which have species found in these areas alone. Many plants here, such as Ipomoea pes-caprae (beach morning glory), can be found throughout tropical regions of the globe. I’ve encountered the same species on the beaches of Guam.

Once inland, vast marshes and wet prairies occur. Occasionally, oak (Quercus fusiformis) groves can be found. Common grasses include species of Bothriochloa, Paspalum, and Sporobolus; eastern gamagrass (Tripsacum dactyloides); and switchgrass (Panicum species). Many rivers and creeks cut through the Gulf Prairies, and along these riparian areas various species of trees, Sabal minor, and other plants adapted to clay soils can be found. Due to overgrazing, farming, and fire suppression, woody species such as mesquite (Prosopis glandulosa) and huisache (Acacia farnesiana), and invasive species such as chinaberry (Melia azedarach), Brazilian pepper (Schinus terebinthifolius), and Chinese tallow (Sapium sebiferum) have increased and displaced our native flora.

Source: Wildflowers of Texas by Michael Eason