Table 2 Mean and standard deviation of Aedes mosquitoes (summed larvae and adults), along with the number of occurrences, by year, month, and county collected during the surveillance in Mazandaran Province, northern Iran from 2014–2020.

From: Entomological surveillance of invasive Aedes mosquitoes in Mazandaran Province, northern Iran from 2014 to 2020

Species

Year/Month/County

No. of occurrence

No. of specimen

Mean

Std. deviation

95% Confidence interval for mean

95% Confidence interval for mean

P value

Lower bound

Upper bound

Ae.vexans

2014

10

58

5.80

6.512

1.14

10.46

0.008

2015

21

201

9.57

10.332

4.87

14.27

2016

31

360

11.61

11.029

7.57

15.66

2017

19

554

29.16

31.167

14.14

44.18

2018

10

105

10.50

7.382

5.22

15.78

2019

8

58

7.25

4.132

3.80

10.70

2020

16

126

7.88

4.272

5.60

10.15

Total

115

1462

12.71

16.506

9.66

15.76

Ae.geniculatus

2014

    

0.004

2015

31

443

14.29

13.059

9.50

19.08

2016

32

316

9.88

9.189

6.56

13.19

2017

26

400

15.38

14.770

9.42

21.35

2018

8

41

5.13

4.324

1.51

8.74

2019

6

23

3.83

2.639

1.06

6.60

2020

29

430

14.83

13.387

9.74

19.92

Total

132

1653

12.52

12.341

10.40

14.65

Ae. caspius

2014

8

38

4.75

5.09

.49

9.01

0.198

2015

1

3

3.00

   

2016

9

50

5.56

4.927

1.77

9.34

2017

5

14

2.80

2.04

0.26

5.34

2018

2

2

1.00

.000

1.00

1.00

2019

1

1

1.00

   

2020

12

30

2.50

2.468

0.93

4.07

Total

38

138

3.63

3.83

2.37

4.89

Ae. pulchritarsis

2014

    

0.761

2015

    

2016

2

6

3.00

2.828

− 22.41

28.41

2017

    

2018

    

2019

    

2020

3

7

2.33

1.155

− 0.54

5.20

Total

5

13

2.60

1.673

0.52

4.68

Ae. vexans

May

3

15

5.00

6.083

− 10.11

20.11

0.001

June

14

109

7.79

5.860

4.40

11.17

July

23

124

5.39

4.449

3.47

7.32

August

13

92

7.08

4.406

4.41

9.74

September

13

251

19.31

22.903

5.47

33.15

October

19

374

19.68

25.604

7.34

32.02

November

21

374

17.81

17.096

10.03

25.59

December

9

123

13.67

14.671

2.39

24.94

Total

115

1462

12.71

16.506

9.66

15.76

Ae. geniculatus

May

1

5

5.00

   

0.002

June

11

101

9.18

7.195

4.35

14.02

July

26

197

7.58

6.646

4.89

10.26

August

22

155

7.05

6.090

4.35

9.75

September

15

230

15.33

14.085

7.53

23.13

October

23

376

16.35

11.625

11.32

21.37

November

24

403

16.79

17.139

9.55

24.03

December

10

186

18.60

16.008

7.15

30.05

Total

132

1653

12.52

12.341

10.40

14.65

Ae. caspius

May

1

5

5.00

   

0.938

June

3

11

3.67

3.786

− 5.74

13.07

July

4

14

3.50

4.359

− 3.44

10.44

August

2

7

3.50

2.121

− 15.56

22.56

September

3

13

4.33

4.933

− 7.92

16.59

October

12

43

3.58

4.144

0.95

6.22

November

11

42

3.82

4.490

0.69

6.31

December

2

3

1.00

1.000

− 1.48

3.48

Total

38

138

3.63

3.830

2.37

4.89

Ae. pulchritarsis

October

3

5

1.67

1.155

− 1.20

4.54

0.128

November

2

8

4.00

1.414

− 8.71

16.71

Total

5

13

2.60

1.673

0.52

4.68

Ae. vexans

Behshahr

15

132

8.80

7.380

4.71

12.89

0.001

Neka

23

303

13.17

13.862

7.18

19.17

Sari

10

87

8.70

5.716

4.61

12.79

Savadkooh

4

22

5.50

4.123

− 1.06

12.06

Fereydunkenar

3

5

1.67

1.155

− 1.20

4.54

Amol

13

136

10.46

7.423

5.98

14.95

Mahmudabad

6

48

8.00

7.746

− 0.13

16.13

Noor

3

8

2.67

2.082

− 2.50

7.84

Noshahr

31

687

22.16

25.836

12.68

31.64

Ramsar

7

34

4.86

3.024

2.06

7.65

Total

115

1462

12.71

16.506

9.66

15.76

Ae. geniculatus

Behshahr

20

169

8.45

6.395

5.46

11.44

0.001

Neka

28

475

16.96

15.495

10.96

22.97

Sari

16

222

13.88

9.612

8.75

19.00

Savadkooh

14

102

7.29

4.196

4.86

9.71

Fereydunkenar

3

10

3.33

1.528

− 0.46

7.13

Amol

19

171

9.00

8.048

5.12

12.88

Noshahr

27

487

18.04

16.216

11.62

24.45

Ramsar

5

17

3.40

3.362

− 0.77

7.57

Total

132

1653

12.52

12.341

10.40

14.65

Ae. caspius

Galugah

6

35

5.83

5.529

.03

11.64

0.537

Behshahr

6

11

1.83

0.753

1.04

2.62

Neka

10

27

2.70

2.710

0.76

4.64

Sari

1

2

2.00

   

Savadkooh

3

7

2.33

1.155

− 0.54

5.20

Noshahr

10

53

5.30

4.900

1.79

8.81

Ramsar

2

3

1.50

0.707

− 4.85

7.85

Total

38

138

3.63

3.830

2.37

4.89

Ae. pulchritarsis

Behshahr

1

3

3.00

   

0.709

Neka

4

10

2.50

1.915

− .55

5.55

Total

5

13

2.60

1.673

.52

4.68