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Wednesday, June 5 • 2:00pm - 2:25pm
Analysis of Prairie Transect Data at Armand Bayou Nature Center LIMITED

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Limited Capacity seats available

Armand Bayou Nature Center in Pasadena, TX opened in 1974, preserving 2500 acres of riparian forest, coastal marshes, and prairies bisected by Armand Bayou.  In the first 20 years, the 900 acres of prairie, variously degraded and overgrazed, were invaded by Chinese tallow trees, Triadica sebifera. Restoration began in 1997-98 with aerial herbicide application on 300 acres of Chinese tallow dominated prairie, followed by additional chipping and mulching. Monitoring began in 2000; volunteers currently monitor 30 transects, in 11 management units to track effects of a 10-year management plan of mowing and/or prescribed burning. Volunteers monitor transects, spring and fall, for presence/absence in 20 tosses of a 3/4 m2 quadrat between 2 poles spaced ~ 100' apart of 36 plant species selected for their expected presence along a successional gradient from disturbed to climax species.

The many variables in this study, beyond change in plant species composition over time include: many volunteer monitors, difficulties with plant identification, vagaries of weather and circumstances affecting both management and monitoring capabilities challenge the analysis, as does the size of the database - a gargantuan spreadsheet after 18 years, with small numbers. In addition, prairie plant propagation and reintroduction has ramped up for the past 10 years, installing ~ 10,000 1-gallon native prairie plants each year in the prairie environment, although not directly within any established transects. We would like to present the results of this long-term study of prairie restoration management at Armand Bayou Nature Center.


Diane Humes

Texas Master Naturalist-Galveston Bay Chapter

Wednesday June 5, 2019 2:00pm - 2:25pm CDT
Room 1418, The Forest Room