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Table 5 Thermal units needed by flea vector larvae of X. cheopis and S. fonquerniei to complete development to pupae at two humidities combined and for 80 % RH and 90 % RH separately

From: Effect of temperature and relative humidity on the development times and survival of Synopsyllus fonquerniei and Xenopsylla cheopis, the flea vectors of plague in Madagascar

  

80 % + 90 %

80 %

90 %

X. cheopis

Threshold

12.36

12.34

12.71

R 2 - value

0.77

0.75

0.76

K - value

158.15

158

155

S. fonquerniei

Threshold

9.26

9.14

8.57

 

R 2 - value

0.45

0.40

0.47

 

K - value

361.6

360.77

345