Skip to main content

Table 2 Tick infestation of birds and B. burgdorfer i s.l. prevalence in I. ricinu s, spring 2008.

From: Borrelia burgdorferi sensu lato in Ixodes ricinus ticks collected from migratory birds in Southern Norway

Bird species

No. birds

No. ticks

No. (%) birds infested

Mean no. ticks per infested bird

Borrelia infected larvae/no. larvae examined

Borrelia infected nymphs/no. nymphs examined

Migrating birds

      

Acrocephalus arundinaceus

1

1

1 (100)

1

 

0/1

Acrocephalus palustris

5

1

1 (20)

1

 

0/1

Acrocephalus scirpaceus

3

1

1 (33.3)

1

 

0/1

Sylvia borin

17

1

1 (5.9)

1

 

0/1

Sylvia communis

28

5

3 (10.7)

1.7

0/1

0/4

Luscinia svecica

1

1

1 (100)

1

0/1

 

Carduelis cannabina

19

1

1 (5.3)

1

 

0/1

Carduelis cabaret

1

1

1 (100)

1

0/1

 

Carpodacus erythrinus

4

1

1 (25)

1

 

0/1

Coccothraustes coccothraustes

1

2

1 (100)

2

 

0/2

Phylloscopus collybita*

65

1

1 (1.5)

1

 

0/1

Sylvia atricapilla*

43

1

1 (2.3)

1

 

0/1

Erithacus rubecula*

232

49

24 (10.3)

2

0/27

1/22

Turdus iliacus*

4

8

1 (25)

8

0/1

2/7

Turdus merula*

77

83

12 (15.6)

6.9

0/14

2/69

Turdus pilaris*

29

4

3 (10.3)

1.3

 

1/4

Turdus philomelos*

17

14

2 (11.8)

7

0/3

0/11

Fringilla coelebs*

14

2

1 (7.1)

2

0/1

0/1

Prunella modularis*

32

23

5 (15.6)

4.6

0/3

2/20

Sturnus vulgaris*

16

1

1 (6.3)

1

0/1

 

Resident birds

      

Carduelis carduelis

5

1

1 (20)

1

 

0/1

Total

614

202

64 (10.4)

3.2

0/53

8/149

  1. Migrating and resident birds are defined according to Fonstad et al. [9]. Only bird species with at least one tick infested individual are included in the table.
  2. *Migrating birds, but some individuals may overwinter