round, providing chemical testing that reflects real-time exposure rather than seasonal snapshots. Those samples reveal that SGAR exposure increases during the tourism season, when second homes fill and short-term visitors and property managers place rodent poison at the first sign of movement. Sometimes the“ problem” rodent is simply a native marsh rat— a harmless part of the ecosystem.
“ A single rat sighting can cause someone to panic,” Keating said.“ But a lot of times, that’ s not a situation that requires poison at all.”
The renewed exposure caught the attention of state pesticide regulators. Today, South Carolina law prohibits the sale of SGARs at hardware or farm-supply stores, allowing only licensed commercial applicators to purchase the product, a big step forward for conservation( to date, California remains the only state with a complete ban). Whether broader restrictions follow may depend on communities like Kiawah, which provide invaluable long-term data.
“ I like to think that Kiawah is where we do pilot projects,” says Bundrick.“ If it works on Kiawah it can be translated outwards— to the other Sea Islands. How can we replicate this on Johns Island, Beaufort, Murrells Inlet?”
Even as bobcats remain stable, the island’ s other carnivore populations hint at deeper concerns. Foxes, once commonly encountered during winter trapping for the bobcat study, have become exceedingly rare. Coyotes disappeared from the island for several years.“ This is not a bobcat-only issue,” Keating said.“ Some species can’ t tolerate these compounds at all, while bobcats have some built-in resistance.”
ALTERNATIVES TO POISON
Before reaching for poison, confirm the issue. Many“ rat sightings” on Kiawah turn out to be native marsh rats— harmless, natural parts of the ecosystem. If a true problem exists, a licensed pestcontrol professional can evaluate the situation and implement non-toxic solutions such as exclusion, sanitation, and targeted trapping.
Integrated pest management focuses on prevention: sealing entry points, securing structures, managing food sources, and using mechanical traps when needed. This approach eliminates the risk of secondary poisoning while providing long-term, effective and humane control.
Unsecured trash, outdoor feeding, and stored pet food encourage rodent activity, leading residents to consider poison. Removing attractants lowers rodent pressure naturally and reduces misuse of toxic products.
42 • CONSERVANCY OF THE SEA ISLANDS