Effects of geolocators on hatching success, return rates, breeding movements, and change in body mass in 16 species of Arctic-breeding shorebirds

Table 4 Effects of explanatory variables on sublethal response variables

Explanatory variable	Interannual breeding movements^a		Proportional change in body mass
Explanatory variable	Mean (SE)	RI	Mean (SE)	RI
Intercept^b	4.07 (1.26)		0.002 (0.005)
Geolocator	0	0	−0.003 (0.007)	0.28
Nest fate: hatched	−0.66 (0.13)	1.00
Nest fate: unknown	−0.18 (0.17)	1.00
Sex: male	−0.56 (0.10)	1.00
Sex: unknown	−0.26 (0.17)	1.00
Previously marked	−0.07 (0.11)	0.46
Difference between recapture and capture dates			−0.001 (0.004)	0.17
Difference between recapture and capture nest ages			0.000 (0.003)	0.15

Values are from the final averaged models for five shorebird species at seven sites pooled. Models included random effects of species, site, and individual. See Table 3 for definitions of abbreviations and bold emphasis. Sample sizes are given in Additional file 1: Table S2; top model sets are given in Additional file 1: Table S7.
^aDistances between nests in subsequent years were measured in meters and log-transformed
^bFor movement, the intercept represents control females whose nest failed to hatch. For change in body mass, effects of sex and nest fate were not tested, so the intercept represents the control group

ISSN: 2051-3933