Incubation of alligator snapping turtle ( Macrochelys temminckii ) eggs in natural and agricultural soils R. Heath Rauschenberger 1 , Stanley E. Trauth 2 , Jerry L. Farris 3 1 Department of Physiological Sciences, University of Florida, P.O. Box 100144, Gainesville, FL 32610, USA e-mail: firstname.lastname@example.org 2 Department of Biological Sciences, Arkansas State University, P.O. Box 599, State University, AR 72467, USA 3 Environmental Sciences Program, Arkansas State University, P.O. Box 847, State University, AR 72467, USA Abstract. Physicochemical properties of incubation substrates may affect embryonic growth, devel- opment, and sexual differentiation in oviparous species with temperature-dependent sex determina- tion. Thus, the physicochemical modi cation of incubation substrates associated with anthropogenic activities may pose a risk to normal embryonic and hatchling development in the alligator snapping turtle ( Macrochelys temminckii ), an oviparous species with temperature-dependentsex determination. The present study evaluated the development of alligator snapping turtle embryos and hatchlings in- cubated in vermiculite, and in Tunica Soils Series from a natural nesting area and from a cotton farm. Differences between agricultural and natural soils included particle size composition, concentrations of phosphorus, nitrates (NO 3 ), magnesium, manganese, potassium, calcium, sodium, and copper con- centrations, salinity, and cation
Applied Herpetology – Brill
Published: Jan 1, 2004
Keywords: ENVIRONMENTAL CONTAMINANTS; AGRICULTURE; MACROCHELYS TEMMINCKII; TURTLE; INCUBATION; EGG; ALLIGATOR SNAPPING TURTLE; REPTILE; DEVELOPMENT; SOIL
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