Table 1.

Model parameters, units and input ranges used in LHS simulations. Parameters shaded in grey were varied over a log₁₀ scale within the LHS routine.

parameter	description	units	value	reference
$\theta$	probability of Salmonella colonization	proportion	0–0.5	[34,44]
$1/\alpha$	GI tract passage time (It)	hours	2–216	[45–47]
$1/\gamma$	duration of colonization (Ia)	days	13–180	[48,49]
ϕ	per cent area contaminated by 1 ibis	per day	10−6–0.1	n.a.
$\delta$	proportional shedding of It versus Ia	proportion	0–1	n.a.
${\mathit{c}}_{\mathit{f}}$	daily effective contact rate	per day	10−6–2	n.a.
$\epsilon$	daily environmental uptake rate	per day	10−6–2	n.a.
$1/\nu$	duration of Salmonella persistence in environment	days	14–180	[17,50]
$\psi$	per cent area contaminated by non-ibis	per day	10−6–1	n.a.