Table 1.
Notation used to denote the main effects and model structure for multistate mark-recapture models.
Figure 1.
Reproductive performance measures for healthy and diseased great tit pairs at Wytham Woods.
(a) average number of young fledged; (b) average number of independent young raised; (c) the proportion of pairs with at least one fledged young; (d) the proportion of pairs raising at least one independent young. Shown are the average estimates from the raw data (±95% CI).
Table 2.
The impacts of Paridae pox on reproductive performance of great tits.
Table 3.
The impact of Paridae pox on monthly recapture, survival and transitions rates of great tits.
Figure 2.
The impact of disease state on great tit monthly survival rates.
Estimates shown are for (a) first years and (b) older individuals (white bars show healthy females; light grey bars show healthy males, dark grey bars show values for all diseased individuals). Estimates are model averaged mean monthly survival rates (±95% CI) obtained from multistate mark–recapture models.
Figure 3.
The influence of Paridae pox impacts and prevalence on great tit population growth rate.
Results of the age-structured matrix model analysis to assess the influence of Paridae pox impacts and prevalence on the population growth rate (Lambda, λ) of the great tit population: (a) mean population growth rates (±95% CI) obtained from 10000 model runs in which pox impacts were incorporated on fertility rates alone (white bars), survival rates alone (grey bars), or on both vital rates together (black bars), and pox prevalence varied from 0% to 15%; (b) the proportion of each of the 10000 runs which gave λ ≥1.