Host Selection and Movements of Ixodes Ricinus (Acari) Larvae on Small Mammals

Nilsson, Anders; Lundqvist, Lars

doi:10.2307/3543656

Cited by 45 publications

(53 citation statements)

References 14 publications

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“…Similarly to our study, in north-central Spain M. glareolus was found to be more intensively parasitized by tick larvae than A. sylvaticus (Estrada-Peña et al, 2005). However, according to other European studies, greater numbers of I. ricinus larvae and nymphs parasitize on Apodemus mice than on bank voles (Nilsson & Lundqvist, 1978;Matuschka et al, 1994;Humair et al, 1993;Kurtenbach et al, 1995;Talleklint & Jaenson, 1997;Sinski et al, 2006). Nevertheless, infestation rates with larvae of I. ricinus in M. glareolus and A. flavicollis when compared on monthly basis were not statistically significant.…”

Section: Discussioncontrasting

confidence: 34%

“…The higher prevalence of infestation with immature I. ricinus ticks on mice than on M. glareolus voles has been explained by a host preference by larvae (Nilsson & Lundqvist, 1978) or because M. glareolus acquires resistance to I. ricinus . The observed differences in tick infestation on rodent species are related to a balance between the larval questing activity and the abundance of hosts according to the season of the year.…”

Section: Discussionmentioning

confidence: 99%

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Infestation of mice and voles withIxodes ricinusticks in Lithuania and Norway

Paulauskas

Radzijevskaja²,

Rosef³

et al. 2009

Estonian J. Ecol.

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Abstract.A total of 693 small rodents were live-trapped in Lithuania and Norway. In Lithuania, the mice Apodemus flavicollis and A. agrarius were more frequently infested with ticks than the voles Microtus arvalis and Myodes glareolus. The overall prevalence of infestation with Ixodes ricinus in different sampling locations of Lithuania ranged for A. flavicollis from 0% to 92.3%, for M. glareolus from 5.9% to 100%, and for M. arvalis from 0% to 37.8%. In Norwegian sites the prevalence of infestation was higher for A. flavicollis (62.7-98% in different sites) than for A. sylvaticus (42.9-77.8%). The most intensive infestation of rodents with I. ricinus larvae was observed in May and June. Contrasting patterns of infestation with larvae and nymphs were observed in males and females of M. glareolus and A. flavicollis.

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Section: Discussioncontrasting

confidence: 34%

Section: Discussionmentioning

confidence: 99%

Infestation of mice and voles withIxodes ricinusticks in Lithuania and Norway

Paulauskas

Radzijevskaja²,

Rosef³

et al. 2009

Estonian J. Ecol.

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“…Low nymph to larvae ratios may limit the development of enzootic tickborne pathogen cycles in small mammals. However, the distribution of I. ricinus on small mammals is often over-dispersed and this must be taken into account when assessing if tick-borne pathogen cycles are likely to be present, or develop, in a given area (Nilsson and Lundqvist, 1978;Craine et al 1995;. For example, found that the same 20% of small mammal hosts fed 61% of larvae and 72% of nymphs whilst a similar observation was made in the current study (20% of hosts fed 72% of larvae and all nymphs).…”

Section: Discussionmentioning

confidence: 99%

Investigating the persistence of tick-borne pathogens via the R₀model

2011

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In the epidemiology of infectious diseases, the basic reproduction number, R 0 , has a number of important applications, most notably it can be used to predict whether a pathogen is likely to become established, or persist, in a given area. We used the R 0 model to investigate the persistence of 3 tick-borne pathogens; Babesia microti, Anaplasma phagocytophilum and Borrelia burgdorferi sensu lato in an Apodemus sylvaticus-Ixodes ricinus system. The persistence of these pathogens was also determined empirically by screening questing ticks and wood mice by PCR. All 3 pathogens behaved differently in response to changes in the proportion of transmission hosts on which I. ricinus fed, the efficiency of transmission between the host and ticks and the abundance of larval and nymphal ticks found on small mammals. Empirical data supported theoretical predictions of the R 0 model. The transmission pathway employed and the duration of systemic infection were also identified as important factors responsible for establishment or persistence of tick-borne pathogens in a given tick-host system. The current study demonstrates how the R 0 model can be put to practical use to investigate factors affecting tick-borne pathogen persistence, which has important implications for animal and human health worldwide.

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“…At present, however, there is no evidence that B. burgdorferi sensu lato found in muscle can be transmitted to ticks. As ticks tend to attach themselves to ears (34), ear biopsies may be a better means to detect the B. burgdorferi sensu lato that can be transmitted to ticks. In Europe, moreover, rates of infection similar to ours have been found for bank voles with the same B. burgdorferi sensu lato genospecies (B. afzelii) (24; Paulauskas et al, presented).…”

Section: Discussionmentioning

confidence: 99%

Introduced Siberian Chipmunks (Tamias sibiricus barberi) Harbor More-Diverse Borrelia burgdorferi Sensu Lato Genospecies than Native Bank Voles (Myodes glareolus)

Marsot

Sigaud

Chapuis

et al. 2011

Appl Environ Microbiol

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Little attention has been given in scientific literature to how introduced species may act as a new host for native infectious agents and modify the epidemiology of a disease. In this study, we investigated whether an introduced species, the Siberian chipmunk (Tamias sibiricus barberi), was a potentially new reservoir host for Borrelia burgdorferi sensu lato, the causative agent of Lyme disease. First, we ascertained whether chipmunks were infected by all of the B. burgdorferi sensu lato genospecies associated with rodents and available in their source of infection, questing nymphs. Second, we determined whether the prevalence and diversity of B. burgdorferi sensu lato in chipmunks were similar to those of a native reservoir rodent, the bank vole (Myodes glareolus). Our research took place between 2006 and 2008 in a suburban French forest, where we trapped 335 chipmunks and 671 voles and collected 743 nymphs of ticks that were questing for hosts by dragging on the vegetation. We assayed for B. burgdorferi sensu lato with ear biopsy specimens taken from the rodents and in nymphs using PCR and restriction fragment length polymorphism (RFLP). Chipmunks were infected by the three Borrelia genospecies that were present in questing nymphs and that infect rodents (B. burgdorferi sensu stricto, B. afzelii, and B. garinii). In contrast, voles hosted only B. afzelii. Furthermore, chipmunks were more infected (35%) than voles (16%). These results may be explained by the higher exposure of chipmunks, because they harbor more ticks, or by their higher tolerance of other B. burgdorferi sensu lato genospecies than of B. afzelii. If chipmunks are competent reservoir hosts for B. burgdorferi sensu lato, they may spill back B. burgdorferi sensu lato to native communities and eventually may increase the risk of Lyme disease transmission to humans.

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Host Selection and Movements of Ixodes Ricinus (Acari) Larvae on Small Mammals

Cited by 45 publications

References 14 publications

Infestation of mice and voles withIxodes ricinusticks in Lithuania and Norway

Infestation of mice and voles withIxodes ricinusticks in Lithuania and Norway

Investigating the persistence of tick-borne pathogens via the R₀model

Introduced Siberian Chipmunks (Tamias sibiricus barberi) Harbor More-Diverse Borrelia burgdorferi Sensu Lato Genospecies than Native Bank Voles (Myodes glareolus)

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Host Selection and Movements of Ixodes Ricinus (Acari) Larvae on Small Mammals

Cited by 45 publications

References 14 publications

Infestation of mice and voles withIxodes ricinusticks in Lithuania and Norway

Infestation of mice and voles withIxodes ricinusticks in Lithuania and Norway

Investigating the persistence of tick-borne pathogens via the R0model

Introduced Siberian Chipmunks (Tamias sibiricus barberi) Harbor More-Diverse Borrelia burgdorferi Sensu Lato Genospecies than Native Bank Voles (Myodes glareolus)

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Investigating the persistence of tick-borne pathogens via the R₀model