The numbers of host-seeking adult American dog ticks, Dermacentor variabilis (Say), in a sweet gum field in Maryland reflected changes in the population density of a host species, the meadow vole, Microtus pennsylvanicus (Ord), which within 1.5 yr fell from an estimated 157 to 8 voles on a 0.8 ha grid. During high vole density, there was no significant difference (P > 0.05) in tick burdens between sexes on an annual basis. Juvenile and subadult voles (< 33 g) harbored significantly fewer D. variabilis larvae and nymphs than did mature voles (> 33 g) on an annual basis. However, during periods of both peak host-seeking activity by D. variabilis larvae and nymphs and high host density nearly all the voles examined were infested. There was no evidence of a relationship between weight of adult voles and likelihood of parasitization by D. variabilis during months of moderate tick host-seeking activity. Of 163 adult D. variabilis recaptured ≥ one week after marking, 86 (52.7%) had moved > 3.8 m, 59 (36.2%) > 5.3 m.
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1 April 1986
Research Article|
April 01 1986
PARASITIZATION OF MEADOW VOLES, MICROTUS PENNSYLVANICUS (ORD), BY AMERICAN DOG TICKS, DERMACENTOR VARIABILIS (SAY), AND ADULT TICK MOVEMENT DURING HIGH HOST DENSITY1
Journal of Entomological Science (1986) 21 (2): 102–113.
Article history
Accepted:
April 02 1986
Citation
J. F. Carroll, J. D. Nichols; PARASITIZATION OF MEADOW VOLES, MICROTUS PENNSYLVANICUS (ORD), BY AMERICAN DOG TICKS, DERMACENTOR VARIABILIS (SAY), AND ADULT TICK MOVEMENT DURING HIGH HOST DENSITY. Journal of Entomological Science 1 April 1986; 21 (2): 102–113. doi: https://doi.org/10.18474/0749-8004-21.2.102
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