Saltmarsh vegetation and social environment influence flexible seasonal vigilance strategies for two sympatric migratory curlew species in adjacent coastal habitats

Table 3 Estimated regression parameters, standard errors, t values and P values for each predictor variable to investigate the effects of habitat and social environment on the vigilance frequency of two curlew species

Fixed effects	Estimate	SE	t value	P value
(Intercept)	0.76	0.22	3.37	0.076
MS (SPR)	0.24	0.04	5.50	< 0.001
OB	− 0.06	0.01	− 4.48	< 0.001
MS (AU):SP (FEC)	0.14	0.06	2.44	0.015
MS (SPR):SP (FEC)	− 0.07	0.05	− 1.23	0.222

Only two predictors (migration season and number of other birds) were included in the top model, which was the only model fitting the delta AICc < 2. The referenced categories for species and season are “Eurasian Curlew: EC” and “autumn: AU”, respectively. The abbreviations for spring and Far Eastern Curlew are SPR and FEC. Significant values are highlighted in italics

ISSN: 2053-7166