Abstract

We provide empirical evidence that frugivores affect Cryptocarya alba (Lauraceae) seeds both positively and negatively by the simple act of removing the perocarp of the fruits. Germination is both increased and advanced but simultaneosly seed mortality by rodent predation is increased as well. Based on fate diagrams we demostrate that the net effect of frugivores on germination is zero while in terms of seeding recruitment, it is positive. We concluded that the ecological conditions for a mutualistic interaction between frugivores and Cryptocaria alba are fulfilled.