Table 2. Logistic regression of real dispersal frequencies on simulated dispersal frequencies for surviving Blue-breasted Fairy-wrens (Model 1) and all birds (Model 2) (with change in deviance distributed as Chi-squared).


Residual deviance

df
Change in deviance
Change in df
Significance

Model 1 survivors
Simulated frequency (f)

357.78

597

39.57

1

P < 0.001

logit (chance of successful dispersal) = - 3.434 + 0.02216 f


Model 2 all wrens
Simulated frequency (f)


368.64

708

49.21

1

P < 0.001

logit (chance of successful dispersal) = - 3.762 + 0.02435 f