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Table 3 Environmental influence for species clusters

From: Anopheles species associations in Southeast Asia: indicator species and environmental influences

 

Well classified sites

Misclassified sites 

Linear discriminant function for proposed cluster of sites

Indicator species and groups defined using clustering & indval

 

Group 1

Group 2

Group 3

Group 4

Group 5

Group 6

Minimum rain (minrain)

Rain warmer quarter (rainwarmq)

Temperature range (dayranget)

Annual wetness index (men3wian)

Range wetness at site (ra3wian)

Annual greeness range (men3vira)

Dense forest (forest)

Mosaic forest shrub (mosaic)

Mosaic forest crop (shrub)

Number forest patch (patchfor)

Shrimp farms (shrimp)

Group 1 An. minimus

33% (3/9 sites)

  

KMDA, KPLB, KPVA

 

VBKA, VBKB

VBHB

-1.32

-1.73

-1.93

2.55

-0.60

-1.61

0.80

2.92

0.41

0.91

-0.43

Group 2 An. peditaeniatus

85% (11/13 sites)

  

VTYB

LSYA

  

1.29

0.83

4.62

4.15

-1.28

0.34

-2.35

-2.58

0.16

0.10

0.20

Group 3 An. dirus

91% (10/11 sites)

VDGA

     

-1.35

-2.46

-1.77

5.52

-1.56

-0.75

1.02

0.47

-1.76

1.85

-0.08

Group 4 An. vagus

48% (11/23 sites)

VTHB

VKTA, VQTA, LKMA

VLDA, VSLB, VTYA, KKPB

 

LBKA, VHGA, VHGB, VLCA

 

1.16

0.86

0.01

5.09

-0.40

-0.77

-0.75

-0.66

-1.03

0.70

-0.19

Group 5 An. sinensis

82% (9/11 sites)

   

VSLA

 

VTGB

0.73

1.39

-1.35

0.61

0.72

-0.03

0.06

0.69

0.24

-0.55

-0.25

Group 6 An. epiroticus

100% (19/19 sites)

      

-1.30

-0.17

-0.45

-13.75

2.13

1.92

1.52

0.51

1.83

-2.10

0.48

  1. For each of the six group defined by species/sites indirect clustering, the most indicative species is indicated under the group. The percentage (number of sites) correctly classified by the environmental analysis is provided as well as the number and name of misclassified sites and groups in which they were placed. The coefficients of the linear discriminant function are provided for each environmental factor and each group.