Fig. 1.2.

Conceptual model, based on empirical data, of mammal body size versus effect size arising from the presence of the dingo (Canis dingo) during conditions of low (solid line) and high (dashed line) resource availability. Positive effect sizes indicate species whose abundance is suppressed due to predation by dingoes. Negative effect sizes indicate species whose abundance increases in the presence of dingoes due to the suppression by dingoes of European red foxes, feral cats and herbivores. The suppressive effects of dingoes on medium-sized mammals is moderate during periods of high resource availability due to prey switching by dingoes to eruptive small prey such as rodents and locusts. The beneficial effects of dingoes on small mammal prey diminish during periods of high resource availability due to increased predation pressure from foxes, cats and dingoes, when top-down forcing effects of the dingo on the smaller carnivores are expected to weaken. Redrawn from Letnic et al. (2012).