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Table 1 Final mixed-effects models of incubation behaviour in the Kentish plover (Type III SS ANOVA).

From: The influence of a hot environment on parental cooperation of a ground-nesting shorebird, the Kentish plover Charadrius alexandrinus

Explanatory variables Response variable
  % total incubation
dferror = 262
% male incubation
dferror = 250
% female incubation
dferror = 261
Changeovers
dferror = 262
Length of off-nest periods
dferror = 208
  df F P df F P df F P df F P df F ( F ) P ( P )
Time period 11 1.44 0.157 11 2.61 0.004 11 0.81 0.632 11 1.138 0.332 11 1.980 (2.019) 0.032 (0.028)
Ambient temperature 2 0.25 0.782 2 0.35 0.704 2 0.75 0.475 2 0.856 0.426 2 0.877 (0.773) 0.418 (0.463)
Female incubation     1 118.21 <0.001          
Male incubation        1 614.79 <0.001       
Time period × ambient temperature 22 3.25 <0.001 22 2.95 <0.001 22 2.51 <0.001 22 1.971 0.007 22 1.744 (1.733) 0.024 (0.026)
Time period × female incubation     11 3.36 <0.001          
  1. Ambient temperature was included in the models as second degree orthogonal polynomial. Statistically significant terms are in italics. F and P values in parentheses are taken from the alternative model that included also the significant (P = 0.037) year effect.