Fig. 1.

Three types of intraguild predation. a Simple intraguild predation, where only one consumer feeds on the other consumer; b reciprocal intraguild predation, where the consumers feed on each other; c reciprocal intraguild predation with size structure, where both consumers feed on each other’s juveniles. R Resource, C consumer or intraguild prey, P (reciprocal) intraguild predator, j juveniles, a adults