Table 3

Model ranking for models estimating age- and sex-specific survival and recapture probability

Model
ΔQAICc
wQAICc
k
High density (1951–1964)



ϕ(age-t/t) p(t)
0.000
0.999
25
ϕ(age-sex*t/t) p(t)
13.640
0.001
34
ϕ(age-sex*t/sex*t) p(t)
21.430
<0.001
40
ϕ(t) p(t)
125.470
<0.001
21
ϕ(sex*t) p(t)
137.080
<0.001
30




Low density (1993–1999)



ϕ(age-t/t) p(t)
0.000
0.928
13
ϕ(age-sex*t/t) p(t)
5.690
0.054
17
ϕ(age-sex*t/sex*t) p(t)
7.890
0.018
22
ϕ(t) p(t)
125.440
<0.001
9
ϕ(sex*t) p(t)
126.950
<0.001
14

Effects of time (t), age (age-juvenile/adult), and sex (sex) on the probability of survival (ϕ) and recapture (p) in southern elephant seals during the high- (1951–1964) and low-density (1993–1999) eras. Models are ranked according to their Akaike weights (wQAICc), the relative change in AICc score (ΔQAICc), and number of parameters (k) based on an inflation factor (ĉ) of 1.3559.

de Little et al. BMC Ecology 2007 7:3   doi:10.1186/1472-6785-7-3