Godley et al. !1 Ecology of the Eastern Kingsnake (Lampropeltis getula) at Rainey Slough, Florida: A Vanished Eden J. STEVE GODLEY1, BRIAN J. HALSTEAD", AND ROY W. MCDIARMID# $Cardno, 3905 Crescent Park Drive, Riverview, FL, 33578, USA "U.S. Geological Survey, Western Ecological Research Center, Dixon Field Station, 800 Business Park Drive, Suite D, Dixon, CA, 95620, USA #U.S. Geological Survey, Patuxent Wildlife Research Center, Smithsonian Institution, MRC 111 PO Box 37012, Washington, DC, 20013, USA CORRESPONDENCE: email,
[email protected] RRH: ECOLOGY OF KINGSNAKES !1 Godley et al. !2 ABSTRACT: The Eastern Kingsnake (Lampropeltis getula) is an important component and predator in herpetofaunal communities, but many of its populations have declined precipitously in the last few decades, particularly in the southeastern USA. Here, we describe an intensive mark–recapture study of L. getula conducted from 1974–1978 in a canal bank–water hyacinth community at Rainey Slough in southern Florida, where we also quantitatively sampled their primary prey, other species of snakes. The best-fit model for L. getula was an open population with a high daily capture probability (0.189) and low apparent annual survival (0.128) that were offset by high recruitment and positive population growth rates, suggesting a high turnover rate in the population. Mean population size varied annually from 11–19 adult kingsnakes with a total predator biomass of 8.20–14.16 kg in each study year. At this site kingsnakes were susceptible to capture mostly in winter and spring, were diurnal, used rodent (Sigmodon hispidus) burrows on canal banks as nocturnal retreats, and emerged from burrows on 0.13–0.26 of the sampling days.