Costly plastic morphological responses to predator specific odour cues in three-spined sticklebacks ( Gasterosteus aculeatus). - Frommen, Joachim G.; Herder, Fabian; Engqvist, Leif; Mehlis, Marion; Bakker, Theo C. M.; Schwarzer, Julia; Thünken, Timo (Evolutionary Ecology, 2011)