Seasonal incidence of Ixodes ricinus ticks (Acari: ixodidae) on rodents in western France |
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Authors: | Monique L'Hostis Henri Dumon Arnaud Fusade Sandrine Lazareff André Gorenflot |
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Institution: | (1) Laboratoire de Parasitologie, Ecole Nationale Vétérinaire, CP 3013, F-44087 Nantes Cedex 03, France;(2) Laboratoire de Gestion de la Santé Animale, INRA-Ecole Nationale Vétérinaire, CP 3013, F-44087 Nantes Cedex 03, France;(3) Laboratoire d'Alimentation-Botanique, Ecole Nationale Vétérinaire, CP3013, F-44087 Nantes Cedex 03, France;(4) Laboratoire de Biologie Cellulaire, UFR des Sciences Pharmaceutiques et Biologiques, 15 avenue Charles Flahault, F-34060 Montpellier, France |
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Abstract: | Data collected from a longitudinal survey carried out over 2 years on four farms in western France were used to assess the incidence and infestation of Ixodes ricinus on rodents. Once a month, on each farm, 25 Sherman live traps were set in hedges bordering selected pastures. A total of 799 micromammals were examined, including Apodemus sylvaticus, Clethrionomys glareolus, Microtus agrestis, Microtus arvalis, and Crocidura spp. Larvae and nymphs of I. ricinus were found. Small numbers of Ixodes (Exopalpiger) trianguliceps were also recovered from each farm. The mean infestation rate of the I. ricinus larvae (1.6–5.9) among all animals examined varied between farms Most animals were infested by only a single tick, but one M. agrestis harboured 43 I. ricinus larvae. Larvae or nymphs were found throughout the year, with peaks from March to October. |
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Keywords: | Ticks Ixodes ricinus rodents France |
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