Influence of microclimate on the activity of Royle's pika in the western Himalaya, India

Zoological Studies

Table 3 Relative support for candidate models analysing competing ecological hypotheses concerning factors affecting activity of Royle's pika

Model (predictor)	L	K	df	AIC	∆AIC	W _i	r ²
Ambient temperature × altitude zone + ambient humidity + time of day	−638.39	7	19	1,314.79	0	0.94	0.45
Ambient temperature + ambient humidity + altitude zone + time of day	−643.46	6	17	1,320.94	6.14	0.04	0.39
Ambient temperature × ambient humidity + time of day	−645.4	5	16	1,322.81	8.01	0.02	0.37
Ambient temperature + time of day	−681.25	4	14	1,390.5	75.7	0.00	0.23
Ambient temperature	−965.9	3	12	1,955.81	641.01	0.00	0.23
Ambient humidity	−1,239.3	3	12	2,502.52	1,187.72	0.00	0.13
Null model	−1,278.3	3	11	2,578.62	1,263.83	0.00

Log-likelihood (L), number of estimated parameters (K), degrees of freedom (df), Akaike information criterion (AIC), difference in Akaike information criterion (∆AIC), Akaike weight (W _i) and estimate of variation (r ²) are reported for each model.