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Table 2 Summary table of the best models (Julian day only (A), Julian day + sex (B), Julian day + breeding status (C) and Julian day + study area (D)) for daily distance travelled (km), mean daily speed (km/h), and proportion of active time (%). Values represent estimated parameters ± standard error (factor variables) or estimated degree of freedom (numeric variables). Reference category = female for sex, breeding for breeding status and Hochstetter for study area; S(Julian day) = spline of Julian day

From: Intraseasonal variations in the spatial behaviour of an Arctic predator

 

Julian day (A)

 

Sex (B)

 

Breeding status (C)

 

Study area (D)

Intercept

S(Julian day)

 

Intercept

Male

S(Julian day)

 

Intercept

Non-breeding

S(Julian day)

 

Intercept

Karupelv

Zackenberg

S(Julian day)

Daily distance travelled

39.35 ± 1.68

1.97

 

38.31 ± 2.47

1.47 ± 3.51

1.97

 

38.57 ± 2.17

1.97 ± 3.48

1.97

 

34.97 ± 4.14

5.34 ± 5.03

5.19 ± 4.79

1.97

Mean daily speed

1.61 ± 0.07

1.97

 

1.55 ± 0.10

0.09 ± 0.15

1.97

 

1.57 ± 0.09

0.10 ± 0.15

1.97

 

1.45 ± 0.17

0.23 ± 0.21

0.17 ± 0.20

1.97

Proportion of active time

60.37 ± 1.42

1.95

 

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Movement Ecology

ISSN: 2051-3933