Population Size and Sex Ratio of Snapping Turtles on the Crescent Lake National Wildlife Refuge
DOI:
https://doi.org/10.17161/randa.v17i4.16122Abstract
Mark and recapture studies of Common Snapping Turtles (Chelydra serpentina) on the Crescent Lake National Wildlife Refuge in the Sandhills of western Nebraska revealed a sex ratio strongly biased toward males by a factor of two, an average density of 2.32 adults and subadults per hectare, and a standing crop biomass of 19.35 kg/ha. Sex ratios were most biased (7.5:1.0) in July–August. Density and biomass were comparable to values from previously studied lakes, and were inversely related to wetland size across all studies of snapping turtles.
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