Figure 2
(A) Relationships between the Iberian hare population instantaneous growth rate (PGR) and the hare abundance index (AI, number of hunted hares/hunting licences per year) during vole outbreak years (in red) and during all years (in blue). (B) Prevalence (% ± standard error) of Francicela tularensis in Iberian hares collected through passive surveillance from 2007 to 2016. Numbers in bold shows sample size (number of hares screened for tularemia). For some years marked with an asterisk (*), numbers refer to both Iberian hares and wild rabbit (lumped together in the data provided by Rodríguez-Ferri (2017)20. Note that F. tularensis prevalence during those years was zero, so uncertainty regarding hare sample size was unlikely to affect conclusions. In addition, the mean prevalence of F. tularensis in 2010 was obtained from a total of three samples; one positive hare in the province of Zamora and another positive hare from two hares collected in the province of Valladolid. Although the mean is represented in the graph, this low sample size makes us believe that it is not representative of the real prevalence.
