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Titre :
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Parasitization of meadow voles, microtus pennsylvanicus (ord), by american dog ticks, dermacentor variabilis (say), and adult tick movement during high host density (1986)
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Auteurs :
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J. F. Carroll, Auteur ;
J. D. Nichols, Auteur
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Type de document :
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Article
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Dans :
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Journal of Entomological Science (21(2) April, 1986)
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Article en page(s) :
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102-113
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Langues:
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Anglais
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Mots-clés :
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Amérique Nord
;
Microtus pennsylvanicus
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Ixodidae
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Parasitisme
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Dynamique population
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Mots-clés:
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Dermacentor variabilis
;
Microtus pennsylvanicus
;
tick burdents
;
populations
;
movement
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Résumé :
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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) 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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En ligne :
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https://www.gaentsoc.org/doi/abs/10.18474/0749-8004-21.2.102
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