Experimental adiaspiromycosis of the common vole (Microtus arvalis) and other small wild mammals after intraperitoneal inoculation
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Vole
Clethrionomys glareolus
Factors influencing prevalences of heteroxenous coccidia in the populations of small mammals and buzzards (Buteo buteo) were studied in the Czech Republic. Seventy one percent of buzzard broods were positive for Frenkelia-like sporocysts. Prevalence increased with nestling age and number, and reached 100% at nest desertion. The prevalences of brain sarcosporidia (Frenkelia glareoli and F. microti) in rodents were higher in ecotones than in open habitats, in spring than in autumn, in heavier individuals, and on 2nd and 3rd day of trapping. These factors were significant although the overall prevalence was different in different host species (Clethrionomys glareolus, Microtus arvalis, Apodemus flavicollis, A. sylvaticus). The prevalences of muscle sarcosporidia in rodents and Sorex araneus were also positively influenced by habitat and host weight, while only for M. arvalis was the prevalence higher in spring. Host sex, locality and year did not show any effects on the prevalences. Besides two Frenkelia species, five Sarcocystis species were found (S. putorii, S. cernae, S. cf sebeki, and two undescribed species from C. glareolus and Sorex araneus). Natural infections of C. glareolus with F. microti and of A. flavicollis with F. glareoli are reported for the first time. Our study demonstrates that prevalences of brain and muscle sarcosporidians in small mammals are influenced by similar factors (intermediate host habitat and age) in different host-parasite combinations.
Sorex
Araneus
Coccidia
Buzzard
Bank vole
Clethrionomys glareolus
Vole
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Echinococcus multilocularis
Vole
Arvicolinae
Sorex
Shrew
Apodemus agrarius
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Bank vole
Territoriality
Clethrionomys glareolus
Apodemus agrarius
Persistence (discontinuity)
Vole
Mastomys
Muridae
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Sorex
Araneus
Insectivora
Clethrionomys glareolus
Cavia
Muridae
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Anoplura of rodents (Rodentia) in Northern Poland. Above 100 rodents belonging to 6 species (Clethrionomys glareolus, Microtus agrestis, M. arvalis, Apodemus flavicollis, A. sylvaticus, Mus musculus) caught in the various habitations were examined. The parasites found represented three species of Anoplura: Hoplopleura acanthopus, H. affinis and Polyplax serrata. H. acanthopus appeard to be the most common parasite; it was found in all examined hosts, while mostly on the bank vole.
Bank vole
Clethrionomys glareolus
Vole
Apodemus agrarius
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We examined the changes in the amount of nitrogenous substances in 1497 stomachs of four small forest rodent species [yellow-necked mouse (Apodemus flavicollis), wood mouse (Apodemus sylvaticus), bank vole (Clethrionomys glareolus), and common vole (Microtus arvalis)] using near-infrared reflectance spectroscopy (NIRS). The amount of nitrogenous substances varied from 9.31% to 65.39% of dry matter. Significant differences were observed between species, with both Apodemus species displaying higher variability and higher mean nitrogenous substance content in the diet compared with M. arvalis. Results for C. glareolus were intermediate for both variability and mean value. In general, concentrations of nitrogenous substances were higher in the diet of juveniles. Differences in diet composition (or ratio of nitrogenous substance) in different biotopes were only demonstrated for C. glareolus. Moreover, C. glareolus diet varied within the same biotope over different years. Clethrionomys glareolus was the only species to display differences in diet between males and females, with males having higher nitrogen concentrations. These findings are in agreement with the C. glareolus broad dietary niche. This study confirmed the suitability of NIRS for determining nitrogenous substance content in the diet of small rodent species.
Clethrionomys glareolus
Bank vole
Wood mouse
Vole
Biotope
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Clethrionomys glareolus
Acorn
Apodemus agrarius
Wood mouse
Bank vole
Vole
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All 560 individuals of small rodents belonging to six species of the families Cricetidae and Muridae were trapped in different habitats of various districts in Lithuania in 1995–2001. To determine Frenkelia infection, brain samples were examined. Cysts of Frenkelia were detected in the brain of three vole species only. The average rate of infection in bank voles (Clethrionomys glareolus) was 21.1%. With different localities the prevalence of Frenkelia infection varied significantly (from 0.0% to 60.6%). Only one out of 35 root vole (Microtus oeconomus) and one out of 24 short-tailed vole (M. agrestis) individuals contained cysts. There were two Frenkelia species established in voles: F. glareoli in C. glareolus and F. microti in M. oeconomus and M. agrestis. All the 23 examined common vole (M. arvalis), 31 striped field mouse (Apodemus agrarius) and 106 yellow-necked mouse (A. flavicollis) individuals were uninfected. These results turn to be the first contribution to the investigation of the Frenkelia fauna, its prevalence and distribution among certain mouselike rodent species in the Baltic States.
Cricetidae
Apodemus agrarius
Bank vole
Vole
Muridae
Clethrionomys glareolus
Sigmodontinae
Arvicolinae
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Vole
Clethrionomys glareolus
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The louse Hoplopleura edentula Fahrennolz occurs not only on the vole Clethrionomys glareolus Schreb. but also on the other members of the genus widely distributed in the USSR, C. rutilus Pall. and C. rufocanus Sund. The characters distinguishing H. edentula from the close species H. acanthopus (Burm.) described from Microtus arvalis Pall. are the differences in the shape of the dorsal lobe of the pleural plate of the third abdominal segment and in the size of the male copulative organ.
Vole
Rutilus
Clethrionomys glareolus
Louse
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