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

Table 3

Results from the best mixed log-linear model of number of activity changes/minute 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 log-link; so effects must be summed and exponentiated to make predictions.

Parameter	b	SE	T	P
Domestic tame (n = 391)
Intercept	0.0963	0.1474	0.653	.513
Treatment	0.1938	0.1045	1.853	.063
Domestic wild (n = 347)
Intercept	1.3019	0.2728	4.772	<.001
Treatment	0.1607	0.0957	1.680	.093
Position^(a)	−0.1172	0.0427	−2.743	.006
Temperature (°C)	−0.0809	0.0186	−4.336	<.001

^(a)Hereposition is a continuous measure (between 1.0 and 4.0) based on individual space distribution (relative time spent in each of the four zones) during a focal observation period (see methods).