Sexual-Size Dimorphism in Emydura krefftii (Testudines: Chelidae) from Ross River, Townsville, Australia

摘要

Krefft's River Turtles, Emydura krefftii, inhabit many of the rivers and streams along the eastern Queensland coast (Cogger 2000), yet its ecology in the wild is poorly understood, particularly within tropical populations (Cann 1998). Previous studies on E. krefftii (Georges 1982a, b; Georges 1983) were conducted on Fraser Island, Southeast Queensland. However, the Fraser Island population might be genetically distinct from the mainland populations and might be an undescribed species (Cann 1998). There are no studies on the ecology of E. krefftii from mainland populations (Cann 1998).