Presence of an alien turtle accelerates hatching of common frog (Rana temporaria) tadpoles

The presence of a predator affects prey populations either by direct predation or modifying various parts their life history. We investigated whether the hatching time, developmental stage, and body size at common frog ( Rana temporaria ) embryos would alter in red-eared slider Trachemys scripta elegans as predator. affected all factors examined. found that absence slider, hatched 12 days, while was accelerated two days treatment. At same smaller lower stage development with than without it. Our study extends range predators studied, including effect on different phases potential amphibian prey.