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Table 6 Sand fly distribution according to altitude, relative humidity, temperature and island

From: Phlebotomine sand flies (Diptera: Psychodidae) in the Greek Aegean Islands: ecological approaches

Variable Level No. of traps % positive traps Sand fly distribution in positive traps (abundance)
No. of sand flies Mean Min. 25% Median 75% Max. Interquartile range
Altitude (masl) 0–100 120 65 915 12 1 2 5 10 131 8
101–200 54 52 909 12 1 2 10 20 236 18
201–300 44 61 466 12 1 2 8 22 126 20
301–400 25 76 474 11 2 6 15 28 150 22
401–500 11 91 35 12 1 2 3 12 45 10
501–600 8 50 158 13 1 1 3 43 45 42
600 < 3 0 0 na na na na na na na
Relative humidity (%) 20–30 1 1 40 na na na na na na na
31–40 54 43 405 14 1 2 4 8 164 6
41–50 59 87 1587 12 1 4 10 20 236 16
51–60 53 81 573 12 1 2 6 12 50 10
61–70 49 49 215 12 1 1 2 13 38 12
71–80 49 63 137 12 1 2 7 14 143 12
Temperature (°C) 15–17 9 57 44 2 1 2 5 7 7 5
18–20 17 40 26 4 1 1 3 5 11 4
21–23 36 57 493 11 1 2 9 18 143 16
24–26 95 56 715 12 1 1 5 18 164 17
27–29 62 62 1326 13 1 2 5 14 150 12
30–32 22 95 328 14 1 3 10 42 236 39
32–34 24 83 22 13 1 3 9 20 98 17
Island Anafi 14 64 281 21 1 4 11 39 164 35
Andros 20 60 86 12 1 2 6 10 86 8
Folegandros 18 33 9 1 1 1 1 2 3 1
Ikaria 26 58 206 13 1 3 5 22 45 19
Karpathos 33 58 549 22 1 4 10 23 143 19
Leros 18 100 199 14 1 3 7 8 50 5
Milos 29 66 131 10 1 2 3 18 41 16
Nisyros 28 100 1219 14 1 9 18 45 236 36
Patmos 21 76 110 13 1 2 4 10 20 8
Santorini 28 18 17 1 1 2 2 6 8 4
Sifnos 30 70 150 10 1 1 4 10 29 9
  1. Abbreviation: na non-applicable