Dr. Murai Éva - Gubányi András szerk.: Parasitologia Hungarica 29-30. (Budapest, 1997)

Table 1 Relative abundance of tick species (in %) Tick species 1989 1990 1989-1990 Ixodes ricinus 40.48 17.80 29.07 Haemaphysalis sulcata 25.60 41.85 33.77 Haemaphysalis punctata 14.22 15.89 15.06 Dermacentor marginatus 12.65 14.25 13.47 Rhipicephalus bursa .3.79 5.53 4.67 Rhipicephalus sanguineus 2.36 3.75 3.06 Dermacentor pictus 0.54 0.42 0.48 Haemaphysalis inermis 0.36 0.48 0.42 In the follow-up of the population dynamics of the eight species in relation to temperature, relative humidity and precipitation, we took into consideration the monthly means of the above-mentioned macroclimatic factors during the two-year period of study (Fig. 2). The population dynamics of ticks was monitored from March to October. March was a period of increase in the abundance of the following five species: Ixodes ricinus, the three species of the genus Haemaphysalis - H. sulcata, H. punctata and H. inermis -, and Dermacentor marginatus at 7.6 °C temperature, 77% relative humidity and 25.43 mm precipitation. April was the month of population maximum for five species: three species of the genus Haemaphysalis - H. sulcata, H. punctata and H. inermis -, and two species Fig. 2. Population dynamics of tick species in relation to temperature, relative humidity and precipitation (A = Ixodes ricinus, Dermacentor marginatus, Haemaphysalis punctata and Rhipicephalus bursa, B = Haemaphysalis sulcata, Haemaphysalis inermis, Rhipicephalus sanguineus and Dermacentor pictus)