Table 2. Parameter estimates of factors influencing perceived value of onagers resulted from a beta regression model (pseudo R² = 0.21, z = 10.96, p<0.001) for locals within and outside the Bahram-e-Goor Protected Area, Iran.

Positive estimates indicate positive association between a factor and perceived value of onagers.

Factor	Estimate ± SE	Z	p
intercept	-0.50±0.20	-2.53	0.01
outside BPA1	-0.08±0.14	-0.61	0.54
gender (male)2	0.04±0.12	0.35	0.72
age	0.04±0.06	0.66	0.51
education (primary and high school)3	0.22±0.15	1.30	0.19
education (university)3	0.65±0.22	3.00	0.002
total annual income (>$5000 USD)4	0.32±0.13	2.50	0.01
knowledge score	0.08±0.06	1.39	0.16
perceived onager population trend (decreasing)5	0.58±0.13	4.42	<0.001
perceived onager population trend (increasing)5	0.48±0.16	2.92	0.003
perceived onager population trend (stable)5	0.46±0.33	1.40	0.16
level of conflict with onagers	-0.17±0.06	-2.82	0.004

¹ reference level: within BPA

² reference level: female

³ reference level: illiterate

⁴ reference level: total annual income < $5000 USD

⁵ reference level: do not know