Table 3. A priori linear models exploring the effect of sex, time as a proxy for population density and prey biomass density on dispersal distance in subadult leopards in Phinda Game Reserve, South Africa, 2002–2012.
| Model | Model parameters | AICc | ΔAICc | W |
|---|---|---|---|---|
| Dispersal distance | Sex | 30.76 | 0.00 | 1.00 |
| null | 42.24 | 11.48 | 0.00 | |
| Female dispersal distance | Density (linear) | 2.96 | 0 | 0.63 |
| Density (quadratic) | 5.84 | 2.88 | 0.15 | |
| Density (linear) + Prey biomass | 6.87 | 3.91 | 0.09 | |
| null | 7.08 | 4.13 | 0.08 | |
| Prey biomass | 8.54 | 5.59 | 0.04 | |
| Density (quadratic) + Prey biomass | 11.13 | 8.17 | 0.01 | |
| Male dispersal distance | Density (quadratic) | 22.00 | 0 | 0.48 |
| Prey biomass a | 24.33 | 2.32 | 0.15 | |
| null | 24.41 | 2.41 | 0.15 | |
| Density (quadratic) + Prey biomass | 25.28 | 3.28 | 0.09 | |
| Density (linear) | 25.35 | 3.35 | 0.09 | |
| Density (linear) + Prey biomass | 27.33 | 5.32 | 0.03 |
AICc = Akaike Information Criteria adjusted for small sample sizes; ΔAICc = (AICc)–(AICc)min; w = Akaike weight. Candidate models with ΔAICc < 2 (bold face) were selected as final models.
a Combined nyala, impala and warthog biomass density estimates derived from aerial count data in Phinda GR, 2002–2012.