Table 3 Model selection results from generalized additive mixed modeling of Laysan and black-footed albatross habitat preference. Final models were arrived at by forward selection based on AIC using a subset of individuals, followed by cross-validation using the remaining individuals

Incubation

s(SST)

s(d_c)

s(depth)

SSHa

s(d_TZCF)

EKE

39.8 %

[60.6]

[30.6]

[5.34]

[1.79]

[0.90]

[0.75]

Brooding

d_c

PP

26.3 %

[82.0]

[18.0]

Chick-rearing

s(SST)

s(d_c)

s(depth)

s(PP)

s(d_TZCF)

39.2 %

[45.7]

[45.1]

[4.08]

[2.64]

[2.52]

Black-footed albatross

% deviance explained by model

Incubation

s(SST)

s(d_c)

SSHa

38.8 %

[75.9]

[21.9]

[2.18]

Brooding

s(SST)

d_c

11.9 %

[60.5]

[39.5]

Chick-rearing

s(SST)

s(d_c)

s(d_TZCF)

s(EKE)

s(PP)

depth

28.3 %

[45.5]

[19.8]

[12.2]

[11.2]

[6.44]

[4.84]