Table 2 Univariate models showing fixed effect estimates for nestling house wren traits

TARSUS

μ

18.33 ± 0.094

1

177.5

83199

<0.001

Year¹

2005

−0.066 ± 0.079

2

233.2

2.41

0.093

2006

0.0728 ± 0.075

Sex

Male

0.275 ± 0.074

2

637.5

22.83

<0.001

Female

0.031 ± 0.075

HAEMATOCRIT

μ

42.06 ± 0.98

1

319.5

5003

<0.001

Year¹

2005

−1.33 ± 0.87

2

394.3

1.18

0.310

2006

−1.01 ± 0.87

Sex

Male

0.517 ± 0.636

2

1308

0.59

0.550

Female

0.311 ± 0.635

PHA

μ

0.785 ± 0.040

1

320.1

491.5

<0.001

Year¹

2005

−0.327 ± 0.035

2

386.6

49.95

<0.001

2006

−0.106 ± 0.032

Sex

Male

−0.047 ± 0.031

2

1340

1.32

0.270

Female

−0.039 ± 0.031

MASS (“Condition”)

μ

9.81 ± 0.105

1

316.9

17361

<0.001

Year¹

2005

−0.309 ± 0.088

2

431.8

8.46

<0.001

2006

−0.346 ± 0.088

Sex

Male

0.225 + 0.079

2

1505

5.53

0.004

Female

0.157 + 0.079

Tarsus

0.519 + 0.034

1

2101

235.7

<0.001

Tarsus²

−0.149 + 0.027

1

2100

31.37

<0.001

Tarsus³

−0.027 + 0.004

1

2035

54.2

<0.001