Table 2 Seasonal variation in parasite prevalence does not explain the geographic restriction of bonobo malaria

From: Wild bonobos host geographically restricted malaria parasites including a putative new Laverania species

Site

Sample collection a

Laverania cytB

Model predictions

 

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Pos

Total

Meanb

Significance cutoffc

p-valued

BN

      

49

35

    

0

84

28.2

17

<10–6

BX

         

1

  

0

1

0.4

0

1.0

BJ

     

2

      

0

2

0.7

0

1.0

IK

  

107

22

46

4

85

  

7

61

121

0

453

147

121

<10–6

KR

5

       

4

9 (1)

13

33

1

64

25.1

15

<10−6

LG

11

          

14

0

25

6.9

2

0.003

LA

       

12

43

30

73

41

0

199

54.5

39

<10−6

LK

  

4

6

28

       

0

38

14.2

7

<10−6

ML

  

56

86

        

0

142

4.1

0

0.176

MZ

   

5

 

49

9

16

57

25

  

0

161

22.6

12

<10−6

TL2

8 (4)

        

8

64 (18)

33 (5)

27

113

39.5

27

0.083

  1. aOnly samples with known collection dates and GPS coordinates, for which land surface temperature and forest cover data could also be obtained, were included in the climate analysis (sample numbers are thus lower than in Table 1). Numbers in brackets indicate Laverania cytB-positive samples
  2. bThe expected mean number of positive samples predicted by the climate model
  3. cThe significance cutoff corresponds to the 0.45% (5%, with Bonferroni correction for 11 tests) of the Poisson binomial distribution for the probabilities predicted by the climate model. Values of 0 indicate that a greater sample size is necessary to confidently reject the climate model
  4. dA significant Bonferroni adjusted p-value (p < 0.05) indicates that climate can be rejected as the explanation for rare or absent Plasmodium infections at any particular sampling site
Back to article page