Clear Lake Chapter

Chapter Meeting: Dragonflies: Aerial Pest Control

March 13, 2023

Beautiful, intricate, active predators throughout their lives, the best natural mosquito control, and numerous in Texas—DRAGONFLIES! Sam Kieschnick leads us in an exploration of these amazing insects. Learn all about their biology, their importance in the ecosystem, and how they do what they do. We’ll also talk about how to document these predators and learn how to fill in some of the data gaps of their distribution. Hopefully, we’ll guide you in some new and fun ways to appreciate these magnificent critters while also contributing to their conservation and management!

About the Speaker

Sam Kieschnick is an urban wildlife biologist with TPWD serving the east side of the DFW metroplex. He previously worked as a nature educator with the City of Mansfield at Oliver Nature Park, as a naturalist at the Fort Worth Nature Center and Refuge, as a science interpreter with the Fort Worth Museum of Science and History, as a botanist with BRIT, and as an instructor at Weatherford College. He has a master’s degree from Tarleton State University studying the genetics of pocket gophers. As an urban wildlife biologist, Sam’s focus will be on three a’s: awareness, appreciation, and action

Hosted by Environmental Institute of Houston, University of Houston-Clear Lake

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About the Region

2026 Fall Symposium Logo

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