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Table 2 Minimal GLMM of high tide travel distance

From: Disturbance increases high tide travel distance of a roosting shorebird but only marginally affects daily energy expenditure

Fixed effects

β

SE(β)

df

χ 2

p

Intercept

− 2.00

0.59

   

Total immediate displacement (km)

0.50

0.24

1

4.66

0.031

Maximum water level (m)

3.18

0.63

   

Start roost

 Mid

0.96

0.38

   

 South

1.57

0.33

   

Wind speed (10 km/h)

0.18

0.15

   

Maximum water level × wind speed

− 0.33

0.13

1

5.97

0.015

Maximum water level × start roost

  

2

27.04

< 0.001

 Mid

− 1.17

0.37

   

 South

− 1.70

0.31

   
  1. GLMM was created with a gamma response distribution and a log link function. High tide travel distance in km, from 2 h before high tide to 2 h after. Variance estimates for random effects individual bird and individual high tide period are 0.03 and 0.07, respectively. n = 263 bird high tides