On the duration of the activity period in Dermacentor reticulatus (Fabricius, 1794) (Parasitiformes, Ixodidae) ticks in the taiga zone of Western Siberia

Le résumé fourni par la source

The ixodid tick Dermacentor reticulatus (Fabricius, 1794) possesses a one-year life cycle. It is believed that adults of this species demonstrate exclusive life expectancy, can winter repeatedly, and possess a summer diapause in July. During five summer seasons, the author had tagged all the ticks collected by flagging (flag 60×120) with unrepeated marks. On the whole, 2013 tick specimens were marked. The greatest number of marked ticks was observed in the first month (319 specimens), later, from 2nd to 9th months marked ticks were collected in numbers varying from 1 to 28 specimens (16.6 ± 2.72 on average), and since 9th to 13th months, 4.5 ± 1.8 specimens. 15 ticks lived for more than a year, and the last tagged tick was collected after 463 days after the start of the experiment. Apparently, Dermacentor reticulatus are unable to winter twice in the taiga zone, because all the wintered ticks (80 specimens), according to tags, had wintered only once.

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