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Table 2 Estimated total and per hectare population size of Anopheles arabiensis males in Mamfene, KwaZulu-Natal, South Africa

From: Estimates of the population size and dispersal range of Anopheles arabiensis in Northern KwaZulu-Natal, South Africa: implications for a planned pilot programme to release sterile male mosquitoes

Experiment/Day

Number released (day 0)

Number of wild males

Number of marked males

Survival probability per day (st )a

Estimate 1 (per ha)b

Estimate 2 (per ha)b

MRRPT C/1

7871

0

3

0.71

1397 (445)

7871 (2505)

MRRPT C/2

1

3

0.5

1984 (632)

9839 (3132)

MRRPT C/3

0

0

0.36

2817 (897)

7871 (2505)

MRRPT C/4

0

1

0.25

1000 (318)

7871 (2505)

MRRPT C/5

2

0

0.18

4260 (1 356)

23,613 (7516)

MRRI C/1

5262

6

4

0.68

5009 (709)

11,576 (1638)

MRRI C/2

4

1

0.46

6051 (856)

15,786 (2233)

MRRI C/3

4

1

0.31

4078 (577)

15,786 (2233)

MRRI C/4

4

0

0.21

5525 (782)

26,310 (3722)

MRRI C/5

2

1c

0.15

2368 (335)

15,786 (2233)

MRRI E/1

5453

9

2

0.8

14,541 (2057)

21,812 (3086)

MRRI E/2

20

0

0.64

73,288 (10,368)

114,513 (16,200)

MRRI E/3

30

1

0.51

43,275 (6122)

87,248 (12,343)

MRRI E/4

8

0

0.41

20,102 (2844)

49,077 (6943)

MRRI E/5

13

0

0.33

25,040 (3542)

76,342 (10,800)

MRRII C/1

~ 15,500

0

4

0.68

2108 (298)

15,500 (2193)

MRRII C/2

0

1

0.46

3565 (504)

15,500 (2193)

MRRII C/3

0

1

0.31

2403 (340)

15,500 (2193)

MRRII C/4

0

0

0.21

3255 (460)

15,500 (2193)

MRRII C/5

1

0

0.15

4650 (658)

31,000 (4386)

  1. aSurvival probability as calculated for estimate 1
  2. bEstimate 1 was obtained using the procedure of [42], and Estimate 2 using [43]
  3. cAn orange marked male was captured at C which had travelled over 600 m to reach the trap at E. This male was excluded from the population size estimation because it was beyond the area used for the calculation, reducing the total captured to 26 and the marked recaptures to 6 for C during MRRI