Upland Snake Survey
We have just started a study to determine the current distribution of the Southern Hognose Snake, Short-tailed Snake, Florida Pine Snake, and Eastern Diamondback Rattlesnake.  

Taking a measurement of a H. Simus found during the study 

Florida Pine Snake, Pituophis melanoleucus mugitus 

Short-tailed Snake, Lampropeltis extenuata 

The U.S. Fish and Wildlife Service provided funding to the FWC for status surveys of the southern hognose snake (Heterodon simus), Florida pine snake (Pituophis melanoleucus mugitus) and eastern diamond-back rattlesnake (Crotalus ada-manteus), all of which have been petitioned for federal listing as threatened. To determine the current distribution of these spe-cies and the short-tailed snake (Lampropeltis extenuata), reptile and amphibian researchers solicited sightings through online surveys and conducted system-atic road surveys. Two seasonal technicians, Steve Christman and Glenn Bartolotti, were hired to conduct most of the road sur-veys, and Jonathan Mays de-signed a database to record and summarize the snake survey re-sults. 

We designed an occupancy mod-eling study for the southern hog-nose and pine snake, selecting 33 survey routes through upland habitats. The routes were ap-proximately 100 kilometers (60 miles) long, and researchers sur-vey each three to seven times from September to November. Driving 16,307 kilometers (10,133 miles) yielded 170 snakes of 20 species (65 percent were alive), but only three south-ern hognoses and one pine snake. We averaged 0.01 snakes per mile in the peninsula and 0.03 snakes per mile in the pan-handle. Black racers (Coluber constrictor) accounted for 40 per-cent of the snakes seen, and dia-mondbacks were the fourth most common species. 

We were much more successful at soliciting snake sightings, re-ceiving credible reports of 54 southern hognose, 163 pine snakes, 32 short-tailed snakes and 659 diamondbacks. 


We’ll be soliciting sightings on the webpages at the FWC website for entering observations above. 

Eastern Diamondback Rattlesnake, Crotalus adamanteus 

Southern Hognose Snake, Heterodon simus