Master Naturalist Lecture Series

December 2017 Master Naturalist Lecture: Factors Influencing Florida’s Geologic History


How are Florida’s beautiful, diverse plant communities shaped? What is our state’s geological history? What are the techniques utilized by the shareholders to effectively manage our public lands?

This Florida Master Naturalist Learning Series topic will be presented on Thursday, December 7, at 7:00 pm at the Savannas Preserve State Park., 2541 SE Walton Road, Port St. Lucie. The informational evening is presented by the Florida Master Naturalist Program – St. Lucie Chapter, under the facilitation of the UF/IFAS Extension St. Lucie County Natural Resources Extension Agent. Florida’s diverse plant communities shaped by biotic and abiotic factors will be presented along with an overview of our state’s geologic history. Using the various ecological systems of the Savannas Preserve State Park as an example, park Environmental Specialist Doug T. Rogers will illustrate how minor changes in soil composition and elevation affect local plant communities. He will explain how land management techniques are implemented with the goal of mimicking natural cycles, and how these techniques are applied to each plant community.

Doug Rogers, FDEP Environmental Specialist, Savannas Preserve State Park

Doug Rogers, FDEP Environmental Specialist, Savannas Preserve State Park

Rogers’ land management philosophy revolves around the principal that restoration of natural areas can be accomplished by effectively using available resources such as aerial photography, lidar and historic data to identify areas in need of restoration, as well as the appropriate techniques that would be applicable.

In the Florida Parks System, an all systems management approach is used to provide healthy habitat for all inhabitants of an environmental system. In certain cases, management is geared to an individual species, such as the native Florida scrub jay. The habitat requirements of this particular indicator species reflect healthy management for other species in the system as well.

A South Florida native, Rogers earned his B.S. in Environmental Science from the University of Central Florida and began his park services career with AmeriCorps in south Florida serving area parks in invasive exotic plant maintenance. After serving as a park ranger in Flagler Beach, Rogers joined the Savannas resource management team in January 2015. His skill and expertise in the natural resource field aids him in directing invasive exotic work crews, planning prescribed fires, and conducting imperiled plant and animal surveys.

For more information, please contact the park education office at 772-398-2779, or email

What:                          Florida Master Naturalist Learning Program
Guest Speaker:           Doug Rogers, DEP Environmental Specialist
When:                          December 7, 2017   Beginning at 7 p.m.
Where:                         Savannas Preserve State Park, 2541 SE Walton Road Port St. Lucie
Registration:                Not Required
Information:                Contact Mary White, Savannas Preserve State Park, 772-398-2779