| interaction of the tick (haemaphysalis leporispalustris) with a cyclic snowshoe hare (lepus americanus) population. | prevalence and intensity of the tick, haemaphysalis leporispalustris, were monitored during 1963 to 1976 in a cyclic snowshoe hare (lepus americanus) population near rochester, alberta, canada. prevalence was near zero from december through march, and near 100% among adult hares from may through september. prevalence among juvenile hares approached 100% by age 2 mo. intensity peaked for both adults and juveniles during may-june and again in august. mean intensities were significantly higher amon ... | 1990 | 2250317 |