Biology Reference
In-Depth Information
cycle is 1 year except in a few species, namely H. kinneari, where overlapping of
two adult populations has been observed.
There are no systematic studies on the seasonality of ticks which are prevalent
in northeastern and Himalayan regions. There are records of immature and adult
activity of H. nepalensis of Himalaya from each month of the year. Adults of
Haemaphysalis species such as sulcata, warburtoni, kashmirensis, and garhwalen-
sis are chiefly recorded in spring and early fall and that of immature stages from
late spring to fall (
Figures 3.1
and
3.2
).
100
H. spinigera
H. turturis
H. kyasanurensis
H. kinneari
90
80
70
60
50
40
30
20
10
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Figure 3.1
Seasonal prevalence of Haemaphysalis nymphs (averages for the year 1961
64).
14
H. spinigera
12
H. turturis
10
H. kinneari
8
6
4
2
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Figure 3.2
Seasonal prevalence of Haemaphysalis adults (averages for the year 1961
64).
