Table 1.

Coefficients of the SEI model. The natural death rate is chosen to be density dependent to provide a carrying capacity compatible with the published values in literature of 5–17 animals per km² [23,24]. The birth rate a, the transmission rate β, the latency period 1/σ and the infectious period 1/α are taken from [25–29].

a	birth rate	2.67 k/f/y
μ0	natural death rate	variable
β	contact rate	1×10–4 (a d)–1
1/σ	latency period	50 days
1/α	infectious period	14 days