Table 1. Influence of parameter uncertainty on the size of the wildebeest population in the absence of a barrier (W) and the wildebeest response to the introduction of a barrier (ΔW).

				W†		ΔW†
Parameter‡	Default value	SD or range	Error distribution	Adj. R2	S	Adj. R2	S
θ	1.39	0.0695	Gaussian	1.8	17.7	0.6	9.9
ψ	0.0167	0.002672	Gaussian	9.4	39.1	10.7	37.9
μ0	141	16	Gaussian	0.0	3.7	0.1	5.0
μ1	0.264	0.026	Gaussian	0.1	0.2	0.1	0.1
σ	46	14	Gaussian	22.5	60.2	23.0	55.4
ρ	0.5	0.15	Gaussian	0.1	5.7	0.2	6.8
δG	0.061	0.006	Gaussian	6.5	32.7	2.0	16.9
δD	0.0012	0.00012	Gaussian	0.1	1.8	0.0	3.5
f	0.42	0.042	Gaussian	0.9	12.4	0.3	7.3
κ1	0.061	0.04	Gaussian	4.7	27.8	2.6	19.0
κ2	3.72	2.4	Gaussian	1.8	17.7	1.5	14.8
αW	10.5	1.05	Gaussian	0.3	8.3	0.0	4.4
βW	9.9	5–10	Uniform	0.9	13.0	0.1	5.2
dviG	5.4	0.54	Gaussian	0.0	3.1	0.0	3.5
dviD	4.4	0.44	Gaussian	0.1	0.3	0.1	2.1
bW	0.24	0.026	Gaussian	7.8	35.7	2.6	18.8
mW	0.00049	0.000015	Gaussian	1.3	15.2	0.7	10.4
aW	0.0032	0.000096	Gaussian	1.5	16.2	0.6	9.8
q	3.15	0.16	Gaussian	4.7	27.6	1.3	13.7
ϕ	2	1–3	Uniform	0.4	9.2	3.1	20.6

Note: the results are based on 1000 iterations of the model run for 100 years for each parameter combination.

^†Effects on W and ΔW are computed at the end of the run.

^‡Parameters are described in [28].