Figure 2.

TGP in development rate depends upon predation regime. (a) Anadromous lakes, (b) landlocked lakes, and (c) no alewife lakes. P, predator treatment; NP, non-predator treatment. Exposure to predator cues in generation 1 yielded strong transgenerational responses in Daphnia from landlocked and no alewife lakes (acceleration in development across generations) but weak or absent TGP in Daphnia from anadromous lakes (delayed development across generations). The lake type × generation × predator treatment interaction was significant (p < 0.01). Error bars =±1 standard error (s.e.).