AGGREGATE EFFECTS OF MULTIPLE PREDATOR SPECIES ON A SHARED PREY

By L. Sokol-Hessner, Oswald J. Schmitz. 2002

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Functional benefits of predator species diversity depend on prey identity (2005, background): “…within life stages indicates that synergistic interactions, the most commonly reported mechanism of positive MPEs (Sih et al., 1998; but see Sokol-Hessner & Schmitz, 2002), were probably not responsible for the observed patterns in this case, although lower statistical power within life…”
Are the conservation of natural enemy biodiversity and biological control compatible goals (2008, background): “Three other studies have found that, despite microhabitat partitioning among enemy species, increasing enemy diversity neither strengthened nor weakened prey suppression (Chang, 1996; Sokol-Hessner and Schmitz, 2002; Onzo et al., 2005).”
Does aggregation benefit bark beetles by diluting predation? Links between a group‐colonisation strategy and the absence of emergent multiple predator effects (2004, background): “An increasing number of studies have explored interactions among multiple predators on herbivorous insect prey, but all studies have been performed within exophytic habitats (Krupa & Sih, 1998; Rosenheim, 1998; Sokol-Hessner & Schmitz, 2002).”