Philip M. Wilkinson

Determining the Size of American Alligators Using Hind-foot Track Length

Size distribution information is useful for crocodilian management, but can be hard to obtain. Indirect and less costly demographic inferences made from track measurements may be valuable for management decisions. We related hind-foot lengths (HF) with total length (TL) to determine if we could indirectly assess alligator size using track length. Regression showed that HF was an excellent predictor (F1,246= 15722.9, R2=0.98, P<0.01) of TL and track length was an exceptional predictor of HF (F1,14=7520.3, R2= 1.00, P<0.01). The correlation between track length and HF length also was...


Nesting Habitat of American Alligators in Coastal South Carolina

We determined nest occurrence and density among habitats and described physical factors associated with nesting sites for American alligators (Alligator mississippiensis) in coastal South Carolina. Nests were located in managed impoundments more than expected, remnant impoundments less than expected, and unaltered wetlands as expected. Nest densities averaged 1/83 ha, 1/225 ha, and 1/286 ha in impoundments, unaltered wetlands, and remnant impoundments, respectively. Most (96%) nests were found in fresh to brackish wetland types. Salinity of nearest water to the nest averaged 6.74 ppt....