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2024 Spring Symposium Program Information

"Native Host Plants for Texas Butterflies and Moths," presented by Jim & Lynne Weber

Want to attract beautiful and beneficial pollinators like butterflies and moths to your garden?  Learn about the special relationships that exist between several native plant species and the butterflies and moths that use them, beyond monarchs and milkweeds!  Explore why native plants are essential to healthy ecosystems, the role of nectar and host plants, and how these insects find the desired host plant species upon which to lay their eggs.  This talk will leave you with the knowledge and resources needed to encourage and appreciate a wider diversity of caterpillars, butterflies, and moths in a Texas native plant garden.

"Connecting Habitats in the Urban Environment and the Importance of Native Plants," presented by Mei Ling Liu

Four major cities in Texas continue to develop substantially, with open fields rapidly transforming into housing, shopping complexes, car washes, etc. The relentless pace of ongoing development seems nearly unstoppable. The Native Plant Propagation Center, formed in 2022 through a partnership between the Dallas Zoo and TCA, aims to save pollinators by advocating for the use of native plants across North Texas. The presentation will share more details about the partnership, outlining how it has developed its current program and its impact on North Texas. Additionally, it will explore ways to mitigate the impact of habitat fragmentation and loss in our urban and suburban landscapes.

 

"Lewisville's Roots For Wings Program: How One Texas Town Is Rethinking the American Lawn" presented by TJ Gilmore, Mayor of Lewisville, Texas

The March 2023 issue of Texas Monthly magazine featured a story about the City of Lewisville’s Roots For Wings program which certifies residential pollinator and native habitat gardens.  This program provides residents with training and education on site selection and preparation, plant selection and maintenance, and ecological benefits. The workshop is taught with the Native Plant Society of Texas, Denton County Master Gardeners, and Elm Fork Master Naturalists. In this presentation, you will hear from Lewisville Mayor TJ Gilmore who was a major proponent of this initiative.  He will explain how Roots For Wings expands the city’s commitment to sustainability, is an integral component of its strategic plan, explain program guidelines and partnerships, and how it is being implemented.  We hope attendees will take away ideas of implementing similar programs and strategies in their communities.

"Maintaining Soil Microbial Diversity in Texas Grasslands," presented by Xinyi Yan

Biodiversity loss and climate change are two key threats to native ecosystems. The loss of native plant diversity and of soil microbial diversity may reinforce each other due to their pervasive links and have cascading effects on ecosystem functioning. Further, drought or change in precipitation, which is increasingly affecting central Texas, may further complicate the impact of plant diversity on the soil microbial communities. To evaluate how native plant richness and phylogenetic diversity (PD) shape soil fungal communities under different water availabilities, we conducted a multi-year biodiversity-ecosystem functioning experiment at UT’s Brackenridge Field Laboratory.

"Quercus buckleyi Seedlings: Does Mycorrhizal Inoculation Affect Drought Response?" presented by Silas Jenkins

Most plants form mutualistic symbioses with particular taxa of fungi through their root systems.These relationships are known to benefit plants in several ways, including amelioration of drought stress, however soil fungal communities are spatiotemporally variable; a seedling may have more or less access to compatible fungal symbionts depending on microsite conditions. We conducted a factorial greenhouse experiment in which Quercus buckleyi seedlings were introduced to inocula sourced from four site types and subsequently droughted in attempts to answer the questions: Does inocula provenance influence the mycorrhizal partnerships formed in early life stages? Do these relationships impact resilience to water scarcity? As hot drought conditions become more frequent and severe in Central Texas, understanding potential dependence on soil mutualists could inform our restoration techniques.

"Unique Ecological Systems and Associated Rare Flora of Texas," presented by Jason Singhurst

Details coming soon!

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About the Region

New Braunfels, the location of our Fall 2024 Symposium, straddles both the Edwards Plateau Ecoregion and the Blackland Prairie ecoregion. Interstate 35 divides the city of New Braunfels; its path through the city closely parallels the boundary of these two ecoregions, with the Edwards Plateau on the west side and the Blackland Prairies region to the east. The Edwards Plateau area is also called the Hill Country; however, this general term covers a much larger area extending farther north. Spring-fed creeks are found throughout the region; deep limestone canyons, rivers, and lakes (reservoirs) are common. Ashe juniper is perhaps the most common woody species found throughout the region. Additional woody species include various species of oak, with live oak (Quercus fusiformis) being the most common. Sycamores (Platanus occidentalis) and bald cypress (Taxodium distichum) border waterways. This area is well known for its spring wildflower displays, though they may be viewed in spring, late summer, and fall, as well. According to Texas Parks and Wildlife, average annual rainfall in the Edwards Plateau ranges from 15 to 34 inches.

The Blackland Prairie extends from the Red River south to San Antonio, bordered on the west by the Edwards Plateau and the Cross Timbers, and on the east by the Post Oak Savannah. Annual rainfall averages 30 to 40 inches, with higher averages to the east. This region is dominated by prairie species. The most common grass species include little bluestem (Schizachyrium scoparium) and Indian grass (Sorghastrum nutans) in the uplands and switchgrass (Panicum virgatum) in the riparian areas and drainages. Common herbaceous flowering plants include salvias, penstemons, and silphiums. This area has suffered greatly from overgrazing and agricultural use. Few intact areas remain, though many of the plants can be found along county roadsides throughout the region.

Our four host chapters (New Braunfels, Lindheimer, Guadalupe, and the Hill Country chapters) are located in one or both of the ecoregions above. However, the eastern portion of Guadalupe County also falls within the Post Oak Savanna ecoregion. Annual rainfall averages 35 to 45 inches, with higher averages to the east. A wide variety of hardwood trees are found, including several species of oaks, elms, and in the Bastrop area, loblolly pine (Pinus taeda). Grasses and forbs dominate in the open savannas, with most common grass being little bluestem. Ranching, agriculture, and fire suppression have allowed woody species to encroach on the once-open savannas.

Source: Wildflowers of Texas by Michael Eason