San Antonio Chapter

iNaturalist -Citizen Science program /TWPD Nature Tracker and preparation for the City Nature Challenge

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March 24, 2020 Chapter Meeting

Discover nature and become a contributor to citizen science program with iNaturalist applications. Craig Hensley, Texas Park & Wildlife Nature Tracker Biologist will teach us about the amazing iNaturalist tool and how to use it to identify and document plants, butterflies, birds and more with your smart device, still camera or sound recording. Craig will also touch base on TPWD – Texas Nature Tracker and 2020 City Nature Challenge (CNC). The City Nature Challenge is an international effort for people to find and document plants and wildlife in cities across the globe. It’s a BioBlitz-style competition where cities are in a contest against each other to see who can make the most observations of nature, who can find the most species, and who can engage the most people. Discover nature and become a contributor to citizen science program with iNaturalist applications. Craig Hensley, Texas Park & Wildlife Nature Tracker Biologist will teach us about the amazing iNaturalist tool and how to use it to identify and document plants, butterflies, birds and more with your smart device, still camera or sound recording. Craig will also touch base on TPWD – Texas Nature Tracker and 2020 City Nature Challenge (CNC). The City Nature Challenge is an international effort for people to find and document plants and wildlife in cities across the globe. It’s a BioBlitz-style competition where cities are in a contest against each other to see who can make the most observations of nature, who can find the most species, and who can engage the most people.

Special Note: There will be a follow up hands-on iNaturalist Field Trip March 28th with Craig Hensley at Crownridge Canyon Park at 9am. See event calendar for details.

If first time user to iNaturalist, for a more engaging presentation/ field trip please create iNaturalist profile via iNaturalist. Org. If you have a smart device download iNaturalist application prior to the events from your Application Store. Any questions about the event – email npsot.sanantonio@gmail.com

Meeting Time and Location

6:30 pm – Native plant/seed exchange & Social time
7:00 pm – Meeting and program
Lions Field Adult Center
2809 Broadway (corner of Mulberry & Broadway by Brackenridge Park)
Map to Lions Field Adult Center

Please note that overflow parking is available at the Doseum parking lot, directly across Broadway from Lion’s Field.

Chapter meetings are held every 4th Tuesday of the month except August, November, and December. They are free and open to the public. So come join us!

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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