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Table 4 Predictor variables and p-values in final models of trip metrics relative to PC axes

From: Foraging behavior links climate variability and reproduction in North Pacific albatrosses

Model variables

Dominant environmental variables in PCs

Farthest distance traveled

Trip duration

Proportion of Trips North of TZCF

Laysan Albatross- Incubating trips

(Intercept)

NS

NS

NS

Black-footed Albatross-Incubating trips

(Intercept)

2.00E-16

NS

NS

PC 2 BFAL, incubating

MEI (−), NPGO (+), Dist. TZCF (+)

4.60E-02

  

R2

0.11

  

Laysan Albatross-Brooding trips

(Intercept)

2.00E-16

3.30E-16

2.00E-16

PC 1 LAAL, brooding

MEI (−), NPGO (+), Dist. TZCF (+), SST (+)

1.83E-02

 

4.62E-02

PC 2 LAAL, brooding

Dist. TZCF (+)

1.22E-02

4.60E-02

 

R2

0.21

0.11

0.16

Black-footed Albatross-Brooding trips

(Intercept)

2.00E-16

7.01E-11

NS

PC 1 BFAL, brooding

MEI (−), NPGO (+), Dist. TZCF (+), SST (−)

9.68E-08

4.20E-02

 

R2

0.17

0.085

 
  1. NS indicates that final models were not significant (p > 0.05). Relationships with dominant environmental variables (loadings >0.3) are shown for each PC.