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Fig. 5 | BMC Veterinary Research

Fig. 5

From: Relative abundance of Mycobacterium bovis molecular types in cattle: a simulation study of potential epidemiological drivers

Fig. 5

Comparison between Hypothesis 2 simulations (unobserved reservoir) and neutral predictions, plotted for the target (cattle) population. Results are shown for: a model with speciation probability per birth in the target (cattle) population, ν t , of 0.01 and speciation probability per birth in the linked (badger) population, ν l , of 0.01. Migration probabilities (m l,t and m t,l ) were 0.0208 (approx. One migration every two timesteps) in both directions (a); a model with ν t  = 0.02; ν l  = 0.01; m l,t = 0.0208; m t,l  = 0.0208 (b); a model with ν t  = 0.1; ν l  = 0.01; and m l,t = m t,l  = 0.0208 (c); a model with ν t  = ν l  = 0.01; and m l,t = 0.0208; and m t,l  = 0.0833 (approx. Two migrations per timestep) (d); a model with ν t  = 0.02; ν l  = 0.01; m l,t = 0.0208; and m t,l  = 0.0833 (e); and for model with ν t  = 0.02; ν l  = 0.01; m l,t = 0.0833; and m t,l  = 0.0208 (f). The 95% envelope for the relative abundance distributions generated by 500 simulations is shown in red, and the 95% envelope for predictions under neutral theory in blue. Log-scaled absolute abundance is shown on the y-axis and ranked abundance on the y-axis (species ranked in order of decreasing abundance)

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