Table 1 Summary of life history, vectors, blood analysis, and traits of Parus major nestlings in four urbanization categories (forest, sparsely-, moderately-, highly-developed).

From: Haemosporidian intensity and nestlings' life-history along an urban-to-rural gradient

 

Forest

 ± s.d

%

Sparsely

 ± s.d

%

Moderately

 ± s.d

%

Highly

 ± s.d

%

Monitoring data*

Nest boxes

23

  

25

  

22

  

22

  

Occupied nest boxes**

16

  

14

  

17

  

7

  

Nest boxes (sampled day 15)

13

  

11

  

14

  

6

  

Eggs

142

  

127

  

135

  

59

  

Mean eggs

8.88

1.67

 

9.07

1.94

 

7.94

1.34

 

8.43

2.23

 

Number of hatchlings

124

  

105

  

111

  

46

  

Mean number of hatchlings

7.75

2.79

 

7.50

2.98

 

6.53

2.27

 

6.57

3.10

 

Number of nestlings

113

  

88

  

91

  

42

  

Mean number of nestlings

7.06

3.82

 

6.29

3.99

 

5.35

3.16

 

6.00

2.94

 

Vectors

Number of sites sampled for

16

  

16

  

16

  

7

  

Culicidae females

6

  

82

  

26

  

7

  

Ceratopogonidae females

14

  

4

  

7

  

0

  

Simuliidae females

0

  

0

  

1

  

0

  

Mean female vectors

1.25

1.69

 

5.38

15.70

 

2.13

2.45

 

1.00

1.41

 

Total vectors (incl. males)

23

  

91

  

50

  

9

  

Mean total vectors (incl. males)

1.44

1.90

 

5.69

15.90

 

3.13

4.13

 

1.29

1.70

 

Blood analysis

N (measured slides)

98

  

71

  

70

  

38

  

Infected conservative

7

 

7.14

5

 

7.04

13

 

18.57

4

 

10.53

Infected total

92

 

93.88

68

 

95.77

65

 

92.86

38

 

100.00

Conservative parasite intensity

0.08

0.31

 

0.07

0.26

 

5.89

34.70

 

0.21

0.66

 

Total parasite intensity

6.22

6.29

 

4.48

3.45

 

13.37

40.22

 

9.16

7.37

 

Heterophils

4.94

4.17

 

5.52

5.27

 

8.37

7.97

 

6.24

5.14

 

Lymphocytes

19.34

43.07

 

10.31

6.86

 

12.86

12.31

 

8.29

6.46

 

H/L-ratio

0.52

0.78

 

0.67

0.74

 

0.95

0.97

 

1.05

1.09

 

Leukocytes

25.99

44.71

 

17.11

10.65

 

22.47

18.13

 

16.18

10.37

 

Ectoparasites

N (checked nestlings)

113

  

86

  

87

  

41

  

Infested nestlings

6

 

5.31

4

 

4.65

9

 

10.34

0

 

0.00

Mean ectoparasites

0.08

0.38

 

0.07

0.37

 

0.11

0.36

 

0

0.00

 

Eco-morphological traits and body-condition

N (measured nestlings)

113

  

87

  

87

  

42

  

Fat deposit

3.35

0.56

 

2.63

0.70

 

2.73

0.54

 

2.88

0.86

 

Muscle score

2.53

0.50

 

2.44

0.52

 

2.28

0.66

 

2.36

0.58

 

Scaled mass index (g)

17.85

1.27

 

16.9

1.66

 

17.37

1.67

 

17.00

1.24

 

Bill length (mm)

7.42

0.41

 

7.28

0.51

 

7.18

0.49

 

7.07

0.45

 

Asymmetry (TR/TL; mm)

1.01

0.02

 

1.01

0.03

 

1.01

0.02

 

1.01

0.02

 
  1. Given are the mean ± s.d. (standard deviation), or where specified, N (%). *Mean values refer to occupied nest boxes only. **Occupied nest boxes = all boxes in which Parus major eggs were observed.