Effects of Power Lines on Area Use and Behaviour of Semi-Domestic Reindeer in Enclosures

Table 2

Results from the best mixed logistic regression model of proportion restless behaviour of two trials with 12 domestic reindeer each. Animals of different degree of tameness were tested separately. Intercept in all models is the estimate for zone 1 in a control enclosure. The model uses a logit-link.

Parameter	b	SE	T	P
Domestic tame (n = 4824)
Intercept	−3.6293	0.3926	−9.244	<.001
Treatment	−0.7618	0.2640	−2.886	.004
Zone (2 versus 1)	−0.0819	0.1742	−0.470	.638
Zone (3 versus 1)	−0.4148	0.1806	−2.297	.022
Zone (4 versus 1)	−0.5606	0.1590	−3.527	<.001
Day	−0.0493	0.0249	−1.978	.048
Temperature (^∘C)	0.1621	0.0189	8.558	<.001
Transmission load (MW)	0.0041	0.0011	3.850	<.001
Wind speed (m/s)	−0.1460	0.0348	−4.192	<.001
Treatment×Wind speed	0.1553	0.0409	3.797	<.001
Domestic wild (n = 3429)
Intercept	−1.4680	0.3260	−4.504	<.001
Treatment	1.0755	0.3763	2.859	.004
Zone (2 versus 1)	−0.1724	0.1132	−1.524	.128
Zone (3 versus 1)	−0.3503	0.1171	−2.992	.002
Zone (4 versus 1)	−0.4853	0.1119	−4.336	<.001
Wind speed (m/s)	−0.0315	0.0133	−2.373	.018
Day	0.1176	0.0279	4.213	<.001
Treatment×Day	−0.1192	0.0394	−3.028	.002