Madison Reporter

As the fall season approaches, the Wisconsin Department of Natural Resources (DNR) is urging residents to report sightings of reptiles and amphibians crossing roads throughout the state. The department is seeking public assistance in tracking these animals, collectively known as herptiles, which include frogs, salamanders, lizards, and snakes.

During late summer and early fall, many herptiles begin their migration from breeding and foraging areas to places where they will spend the winter. According to DNR officials, snakes and lizards are especially likely to be seen on or near roads as they use warm pavement or open trails to regulate their body temperature. This behavior increases their risk of being struck by vehicles.

The DNR emphasizes that public reports can play a significant role in helping scientists understand where these species are most at risk. Rich Staffen, a conservation zoologist with the DNR, stated: "Many reptiles and amphibians are hit by cars on roadways each year. We are trying to minimize this mortality, and the public can help by reporting where they are seeing this happen. By identifying high road mortality areas, we know where we can incorporate mitigation efforts to reduce the threat to crossing animals in those locations."

Residents who observe live crossings or find dead reptiles or amphibians on roads are encouraged to submit their observations using the DNR’s Reptile and Amphibian Mortality Reporting Form. The department requests that reports include photographs when possible. For turtle sightings specifically, individuals should use the separate Turtle Reporting Form provided by the agency.

The need for such monitoring is underscored by data showing that more than half of Wisconsin’s reptile species are currently listed as endangered, threatened, or of special concern—a designation indicating declining populations that require conservation action.

A breakdown provided by the DNR highlights the current status of herptile populations in Wisconsin:

- Of 12 frog and toad species found in Wisconsin, three (25%) are considered rare.

- Among seven salamander species present in the state, one (14%) is classified as rare.

- Out of four lizard species native to Wisconsin, three (75%) have rare status.

- Eleven turtle species live in Wisconsin; four (36%) are rare.

- Snakes show particular vulnerability: out of 22 snake species statewide, 14 (64%) are listed as rare.

The department encourages anyone interested in learning more about local reptiles and amphibians—including identification guides and conservation information—to visit its Reptile and Amphibian webpage.

"Over half of Wisconsin’s reptiles are endangered, threatened or of special concern. A special concern species means their population is declining and in need of conservation action," according to information released by the DNR.

By participating in reporting efforts this fall season, residents can contribute valuable data that may help guide future protection measures for these vulnerable animal populations.