The life cycle and development characteristics of Dermacentor everestianus (Acari: Ixodidae) under field conditions in Qinghai–Tibet Plateau
- 38 Downloads
The tick Dermacentor everestianus mainly distributed in Tibet, China and Nepal, and can transmit some pathogens causing great damages in Qinghai-Tibet Plateau. This study investigated the life cycle and development characteristics of D. everestianus under field conditions. The average duration of the whole life cycle of D. everestianus was 124.4 days, with the host available in the field plot. Under natural conditions, the mean feeding, preoviposition and oviposition period of female ticks were 6.1, 17.9 and 21.2 days, respectively. The incubation time of eggs was the longest phase in the life cycle of the ticks (26 days on average). Moreover, the weight of engorged females was highly positively correlated with the number of the eggs that were laid (r = 0.81, P < 0.05). The reproductive efficiency index and reproductive fitness index in females were 7.3 and 5.9, respectively. The above findings suggest that the tick D. everestianus have evolved well adaptability to the highland areas.
KeywordsDermacentor everestianus Life cycle Field conditions Tibet
This study was supported by National Natural Science Foundation of China (31672365), and Youth Foundation of Department of Education of Hebei Province (QN2018027).
- Apanaskevich DA, Duan W, Apanaskevich MA, Filippova NA, Chen J (2015) Redescription of Dermacentor everestianus Hirst (Acari: Ixodidae), a parasite of mammals in mountains of China and Nepal with synonymization of D. abaensis Teng and D. birulai Olenev. J Parasitol 100(3):268–278. https://doi.org/10.1645/13-369.1 CrossRefGoogle Scholar
- Cao HL, Ye RY, Xiao H, Riziwan (1991) Observations on the Biology of Dermacentor marginatus (Acariformes: Ixodidae). Endem Dis Bull 3:117–122. (in Chinese)Google Scholar
- Oliver JH (1989) Biology and systematics of ticks (Acari: Ixodidae). Annu Rev Ecol Syst 20:397–430. https://doi.org/10.1146/annurev.es.20.110189.002145 CrossRefGoogle Scholar
- Teng GF, Jiang ZJ (1991) Economic insect fauna of China, Fasc 39 Acari: Ixodidae. Science Press, Beijing. (in Chinese)Google Scholar