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Table 3 Results from the generalized additive and linear mixed-effects components of the GAMM output

From: Daily activity budgets reveal a quasi-flightless stage during non-breeding in Hawaiian albatrosses

Model #

Response

Model term

df

F

P-value

1.

Sustained flight, >0

s(DSD):sp(LAAL)

6.78

12.82

< 0.0001

  

s(DSD):sp(BFAL)

3.88

39.97

< 0.0001

  

Non-breeding Phase

2

9.86

< 0.0001

  

Species

2

15.98

< 0.0001

  

Phase:Species

2

4.01

0.0181

2.

Sustained flight (0,1)

s(DSD)

4.50

23.73

< 0.0001

  

Non-breeding Phase

2

10.07

< 0.0001

3.

Floating

s(DSD)

5.78

16.83

< 0.0001

  

Non-breeding Phase

2

11.26

< 0.0001

4.

Foraging

s(DSD):sp(LAAL)

3.12

7.67

< 0.0001

  

s(DSD):sp(BFAL)

3.58

6.19

< 0.001

  

Non-breeding Phase

2

6.55

0.0014

  1. Degrees of freedom for the smoothers are taken from the model hat matrix. Proportion of time spent daily in sustained flight was zero-inflated (>35% zeros) and thus was modelled in two parts as a hurdle model with both quasi-binomial and binary distributions (Models 1 and 2).