Clear Lake Chapter

Chapter Meeting: Nutritional Ecology of Honey Bees in a Changing Landscape

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Dr. Juliana Rangel will first cover basic information about the building blocks of honey bee nutrition, and then go into her work using the geometric framework for nutritional ecology. We finish by testing our results on the preferred macronutrient ratio by bees when colonies are infected with a virus (a type of social immunity).

About the Speaker

Born in Colombia, Juliana obtained a B.S. in Ecology, Behavior, and Evolution in 2004 from the University of California, San Diego. In 2010 she obtained a Ph. D. in Neurobiology and Behavior from Cornell University. She was a National Science Foundation Postdoctoral Research Fellow from 2010 to 2013 at North Carolina State University. In January 2013, Juliana became Assistant Professor of Apiculture in the Department of Entomology at Texas A&M University, and Associate Professor in 2018. Her research program focuses on the biological and environmental factors that affect the reproductive quality of honey bee queens and drones, the behavioral ecology and population genetics of unmanaged honey bees, and the quality and diversity of honey bee nutrition. She is an active member of the Texas Beekeepers Association and has spoken to dozens of beekeeping associations across the USA and internationally. She teaches the courses Honey Bee Biology, Introduction to Beekeeping, and Professional Grant and Contract Writing.

Meetings are open to members and non-members. If you would like to become a member, you may join online. For more information about the Native Plant Society of Texas and the benefits of membership please visit: www.npsot.org.

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

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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