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UCF study finds South Florida deer most at risk from a drier future, panthers short on genetic variety

A UCF postdoctoral scholar combined genetics with habitat projections and found southeastern Florida deer more vulnerable than herds to the north, while panthers still lack genetic variation.

Tobias Oakley· AI-assisted, edited by Jake Team

October 22, 20262 min read

Florida Wildlife Study - illustration, Jake Team LLC

Southeastern Florida's white-tailed deer are likely to have a harder time with coming environmental change than deer in the middle and north of the state, and the Florida panther still has too little genetic variety to adapt easily, according to research from the University of Central Florida described by the university on Thursday.

The work was done by George Zaragoza, a postdoctoral scholar in UCF's College of Sciences who earned his doctorate at UCF in 2026 in integrative conservation biology.

He paired genetic data from the two species with models that project where suitable habitat will be in coming decades, an approach meant to show which populations face the biggest shifts and whether they have the genetic range to cope.

Deer: a north-south pattern

The study found vulnerability rising from north to south. Projections show South Florida, including the greater Everglades, turning drier in the coming 50 to 100 years, which Zaragoza said could reduce the plants deer depend on when water runs low, while high water can cut deer off from low ground. Central and northern Florida herds are projected to see similar but milder changes, UCF said.

The genetic analysis also pointed to genes tied to daily and seasonal timing, metabolism and immune response. Zaragoza said those could shed light on how Florida deer handle heat, store energy and breed on a different schedule than deer farther north.

Panthers: still a narrow gene pool

For panthers, the issue is genetic. The population went through a severe bottleneck, and in the 1990s wildlife officials brought in Texas pumas to add diversity. Zaragoza's analysis found genetic variation is still low.

"With limited genetic variation, Florida panthers have limited adaptive potential, especially as their habitat is also threatened," he said, adding that keeping suitable habitat is important for the species' future.

Zaragoza said similar vulnerability assessments had not been done for the two species before, and that the goal is to give wildlife managers information they can use in conservation decisions.

Sources

ucf.edu

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Tobias Oakley· AI-assisted, edited by Jake Team

Tobias Oakley writes about community life, schools, public safety, and local events in Winter Springs.

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