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Table 3 Below we detail the estimates with 95% confidence intervals and model statistic for the fixed effects included in the model for wigeon arrival timing relative to the \(TGS_{\mathrm{onset}}\) using \(\Delta {\text{arrival}}_{\mathrm{d}}\) using only the last arrivals for each individual and year

From: Migration distance affects how closely Eurasian wigeons follow spring phenology during migration

 

Estimate

95% CI

z-value

Intercept

0.45

0.10–0.79

2.55

Deviation from \(TGS_{\mathrm{onset}}\)

− 0.26

− 0.56 to 0.04

− 1.72

Maximum longitude

− 0.59

− 0.89 to − 0.30

− 3.91

  1. The fixed effects contributed to a marginal \(R^2=0.44\). The response and independent model terms were scaled and centered, and the model was fitted using 32 arrival events for 28 wigeons and 3 years