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Table 1 The effects of malondialdehyde concentration (MDA), total non-enzymatic antioxidant capacity (AOX), fat stores, and several weather parameters on stopover departure decisions of northern wheatears (Oenanthe oenanthe) in spring and song thrushes (Turdus philomelos) in autumn on Helgoland

From: The oxidative balance and stopover departure decisions in a medium- and a long-distance migrant

Northern wheatear (n = 93)

Song thrush (n = 78)

 

β ± SE

W

P

β ± SE

W

P

Without UA

      

MDA

− 0.001 ± 0.001

2.43

0.12

0.002 ± 0.004

0.48

0.49

AOX

− 4.91 ± 65.62

0.01

0.94

41.29 ± 86.81

0.23

0.63

Fat stores

− 0.94 ± 0.31

9.03

0.003

− 0.61 ± 0.29

4.60

0.032

Cloud cover

− 0.15 ± 0.12

1.58

0.21

0.09 ± 0.09

1.03

0.31

Temperature

0.30 ± 0.37

0.67

0.41

− 0.03 ± 0.15

0.04

0.84

u wind

− 0.12 ± 0.14

0.70

0.40

0.01 ± 0.06

0.03

0.87

v wind

0.08 ± 0.08

1.22

0.27

− 0.19 ± 0.14

1.87

0.17

With UA

With UA and UI

MDA

− 0.001 ± 0.001

1.76

0.18

0.002 ± 0.004

0.38

0.54

AOX

− 11.02 ± 124.18

0.01

0.93

151.60 ± 156.76

0.94

0.33

Fat stores

− 0.92 ± 0.32

8.19

0.004

− 0.58 ± 0.29

4.04

0.045

UA

2.94 ± 30.17

0.01

0.92

− 38.93 ± 37.31

1.09

0.30

Cloud cover

− 0.16 ± 0.12

1.72

0.19

0.12 ± 0.09

1.51

0.22

Temperature

0.34 ± 0.37

0.86

0.35

− 0.01 ± 0.16

0.01

0.93

u wind

− 0.12 ± 0.14

0.73

0.40

0.01 ± 0.06

0.04

0.84

v wind

0.09 ± 0.08

1.45

0.23

− 0.20 ± 0.14

1.99

0.16

UI

   

1.04 ± 2.43

1.09

0.30

  1. Binary logistic regression models were run without and with uric acid concentration (UA) as a covariate, and, for song thrush, without and with the unsaturation index (UI) as a covariate. Due to plasma volume limitation, in case of the northern wheatears sample size decreased by one in the latter analysis. Unstandardized coefficients (β) with standard error (SE) and the Wald statistic (W) are presented
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Movement Ecology

ISSN: 2051-3933