Morphometric and hydrologic characteristics of alligator holes in Everglades National Park, Florida from 1994 to 2007

Alligator holes in Everglades National Park serve as critical aquatic refuges, providing stable water sources for alligators and other species regardless of varying hydrologic conditions across the landscape. A study analyzing 50 alligator holes from 1994 to 2007 found that their hydroperiod—how long they retain water—was consistent even when surrounding marsh hydroperiods differed by location or habitat, particularly in Rocky glades. Contrary to expectations, larger holes were not necessarily deeper or less prone to drying out. Researchers used high-resolution digital imagery and field measurements to assess morphometric traits (surface area, depth, circularity) and combined these with hydrological models to evaluate the relationship between hole morphology, habitat, and water dynamics.

Liu, Z., Brandt, L. A., Ogurcak, D. E., & Mazzotti, F. J. (2012). Morphometric and hydrologic characteristics of alligator holes in Everglades National Park, Florida from 1994 to 2007. Ecohydrology, 6(2), 275–286. Portico. https://doi.org/10.1002/eco.1266