Table 4. A priori binomial regression models exploring the effect of time as a proxy for population density and prey biomass density on the probability of dispersal in subadult male leopards in Phinda Private Game Reserve, South Africa, 2002–2012.

Model	Model parameters	AICc	ΔAICc	w
Probability of male emigration	null	32.52	0	0.27
	Density (quadratic)	32.64	0.12	0.25
	Prey biomass a	32.9	0.38	0.22
	Density (linear)	34.17	1.66	0.12
	Density (linear) + Prey biomass	34.92	2.41	0.08
	Density (quadratic) + Prey biomass	35.57	3.05	0.06

AICc = Akaike Information Criteria adjusted for small sample sizes; ΔAICc = (AICc)–(AICc)_min; w = Akaike weight. Candidate models with ΔAICc < 2 (bold face) were used for model-coefficient averaging.

^a Combined nyala, impala and warthog biomass density estimates derived from aerial count data in Phinda GR, 2002–2012.