Streamside salamander

Moore, R. D., Newton, B., and Sih, A., 1996, Delayed hatching as a response of streamside salamander eggs to chemical cues from predatory sunfish, Oikos 77 331-335. 

In response to larval predators we tend to see a delay in hatching time. Sih and Moore (1993) exposed streamside salamander embryos Ambystoma barbouri) to chemical cues from flatworms Phagocotus gracilis) or non-predatory isopods (Lirceus fontinalis). Embryos tended delay hatching in response to flatworm cues, but not to isopod cues. Moreover, hatchlings tended to be larger and more developed than control hatchlings. 

Sih, A. L.B. Kats. 1994. Age, experience, and the response of streamside salamander hatchlings to chemical cues from predatory sunfish. Ethology 96 253-259. 

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