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Table 5 Associations between the proportional frequencies of the immatures of the M and S forms among sampling sites within a habitat, or among larval breeding habitats as influenced by each physicochemical property of water during a category of rainfall in Banambani

From: Water quality and immatures of the M and S forms of Anopheles gambiae s.s. and An. arabiensis in a Malian village

Source

df

Young

Old

Total

 

χ 2

P

χ 2

P

χ 2

P

Alkalinity

1

3.34

0.068

0.22

0.636

2.64

0.104

Habitat

2

4.59

0.101

2.39

0.303

4.39

0.111

Site within a habitat

2

6.52

0.038*

5.61

0.060

3.50

0.174

Category of rainfall

2

4.38

0.112

2.73

0.255

4.43

0.109

Conductivity

1

1.59

0.208

0.60

0.438

0.06

0.812

Habitat

2

3.20

0.202

2.82

0.244

3.55

0.169

Site within a habitat

2

6.51

0.039*

5.29

0.071

1.35

0.508

Category of rainfall

2

3.01

0.222

2.47

0.291

3.79

0.812

Dissolved oxygen

1

0.59

0.443

0.03

0.872

0.85

0.357

Habitat

2

5.02

0.081

2.14

0.343

5.28

0.072

Site within a habitat

2

6.31

0.043*

5.69

0.058

1.79

0.409

Category of rainfall

2

3.45

0.179

2.54

0.280

3.97

0.137

Nitrate

1

1.05

0.305

0.56

0.455

0.01

0.906

Habitat

2

5.48

0.065

2.44

0.295

5.02

0.081

Site within a habitat

2

5.77

0.056

5.28

0.071

1.22

0.543

Category of rainfall

2

5.28

0.071

2.23

0.327

3.77

0.152

Orthophosphate

1

-

-

0.26

0.610

-

-

Habitat

2

  

2.32

0.314

  

Site within a habitat

2

  

5.05

0.080

  

Category of rainfall

2

  

2.58

0.275

  

pH

1

0.73

0.393

1.14

0.285

1.68

0.195

Habitat

2

4.27

0.118

1.31

0.521

4.08

0.130

Site within a habitat

2

5.71

0.058

6.23

0.044*

0.88

0.645

Category of rainfall

2

5.28

0.203

2.21

0.332

3.14

0.209

Temperature

1

0.01

0.934

1.64

0.201

1.78

0.182

Habitat

2

4.75

0.093

2.85

0.241

5.54

0.063

Site within a habitat

2

6.39

0.041*

5.69

0.058

1.37

0.505

Category of rainfall

2

3.45

0.179

2.91

0.234

2.81

0.245

TDS

1

1.85

0.174

0.66

0.416

0.01

0.927

Habitat

2

3.18

0.204

2.88

0.237

4.01

0.135

Site within a habitat

2

6.65

0.036*

5.27

0.072

1.28

0.526

Category of rainfall

2

2.89

0.236

2.47

0.290

3.75

0.153

Turbidity

1

0.04

0.846

2.27

0.132

0.08

0.781

Habitat

2

4.79

0.091

2.10

0.350

5.12

0.077

Site within a habitat

2

5.76

0.056

0.26

0.878

1.07

0.586

Category of rainfall

2

3.58

0.167

1.61

0.448

2.90

0.235

  1. * P < 0.05, "-" Not applicable