Some data on the fertility of bank voles (Clethrionomys glareolus britannicus) in the laboratory supporting the hypothesis of induced ovulation

1984 ◽  
Vol 18 (1) ◽  
pp. 33-35 ◽  
Author(s):  
F. O. Ödberg
Keyword(s):  
Sex Ratio ◽  
Clethrionomys Glareolus ◽  
Induced Ovulation ◽  
Bank Voles

83 (40%) litters with an average of 3·42 pups and unbiased sex ratio were born of 207 couples. Fertility and litter average were higher in summer and autumn. Most females were fertilized on the 1st day spent with a male, which supports the mating-induced ovulation hypothesis. Infantile mortality was highest at birth and during the 1st 5 days of life. 26% of the pups died before weaning (day 25), i.e. an average of 1 per litter.

Adrenal growth during pregnancy in the bank vole, Clethrionomys glareolus: initiation by mating

1980 ◽  
Vol 58 (8) ◽  
pp. 1458-1461
Author(s):  
Torgny O. Gustafsson ◽  
C. Bertil Andersson
Keyword(s):  
Bank Vole ◽  
Ovarian Hormones ◽  
Clethrionomys Glareolus ◽  
Adrenal Weight ◽  
Induced Ovulation ◽  
Bank Voles

The relative roles of mating and the ovary in the initiating of adrenal growth in pregnant bank voles, Clethrionomys glareolus, were studied. In one experiment females were ovariectomized shortly after mating; 4 days later they had significantly heavier adrenals than unmated, ovariectomized controls. In another experiment females were ovariectomized and brought into oestrus by oestradiol- 17β injections. Half of the females were mated and after 4 days their adrenals were significantly larger than those of unmated controls. We conclude that the increase in adrenal weight during pregnancy in bank voles is triggered directly by mating, without involvement of ovarian hormones. The mechanism is suggested to be a neuroendocrine reflex, acting via the hypothalamus and the pituitary. The mechanism may be the same as that involved in the induced ovulation in this species.

Younger bank voles are more vulnerable to avian predation

2008 ◽  
Vol 86 (9) ◽  
pp. 1074-1078 ◽  
Author(s):  
Taru Meri ◽  
Matti Halonen ◽  
Tapio Mappes ◽  
Jukka Suhonen
Keyword(s):  
Sex Ratio ◽  
Clethrionomys Glareolus ◽  
Selective Predation ◽  
Field Sample ◽  
Avian Predator ◽  
Avian Predation ◽  
Bank Voles ◽  
Significant Difference ◽  
Total Impact ◽  
Selection Of

The importance of predation on prey populations is mainly determined by the number of eaten prey. However, the total impact of predation might also be determined by the selection of certain prey individuals, e.g., different sexes or age categories. Here we tested selective predation by an avian predator, the pygmy owl ( Glaucidium passerinum (L., 1758)), on bank voles ( Myodes ( Clethrionomys ) glareolus (Schreber, 1780)). We compared the sex, age, and mass of hoarded prey with the animals snap-trapped from the field. There were no differences in the sex ratio between hoarded bank voles and those available in the field. However, hoarded voles were significantly younger than ones in the field sample. There was no statistically significant difference in mass between animals from larders and from the field. We suggest that the greater vulnerability of younger animals to predation might be due to their higher activity, or alternatively, they might be forced to forage in less safe habitats.

scholarly journals Demographic Factors Associated with Hantavirus Infection in Bank Voles (Clethrionomys glareolus)

2002 ◽  
Vol 8 (9) ◽  
pp. 924-929 ◽  
Author(s):  
Gert E. Olsson ◽  
Neil White ◽  
Clas Ahlm ◽  
Fredrik Elgh ◽  
Ann-Christin Verlemyr ◽  
...  
Keyword(s):  
Demographic Factors ◽  
Clethrionomys Glareolus ◽  
Hantavirus Infection ◽  
Factors Associated ◽  
Bank Voles

scholarly journals Hantavirus and arenavirus antibody prevalence in rodents and humans in Trentino, Northern Italy

2005 ◽  
Vol 134 (4) ◽  
pp. 830-836 ◽  
Author(s):  
H. KALLIO-KOKKO ◽  
J. LAAKKONEN ◽  
A. RIZZOLI ◽  
V. TAGLIAPIETRA ◽  
I. CATTADORI ◽  
...  
Keyword(s):  
Temporal Distribution ◽  
Neutralization Assay ◽  
Lymphocytic Choriomeningitis ◽  
Clethrionomys Glareolus ◽  
Common Finding ◽  
Wild Rodents ◽  
Serum Samples ◽  
Bank Voles ◽  
Dobrava Virus ◽  
Low Prevalence

The spatial and temporal distribution of hantavirus and arenavirus antibody-positive wild rodents in Trentino, Italy, was studied using immunofluorescence assays (IFA) in two long-term sites trapped in 2000–2003, and six other sites trapped in 2002. The overall hantavirus seroprevalence in the bank voles, Clethrionomys glareolus (n=229) screened for Puumala virus (PUUV) antibodies was 0·4%, and that for Apodemus flavicollis mice (n=1416) screened for Dobrava virus (DOBV) antibodies was 0·2%. Antibodies against lymphocytic choriomeningitis virus (LCMV) were found in 82 (5·6%) of the 1472 tested rodents; the seroprevalence being 6·1% in A. flavicollis (n=1181), 3·3% in C. glareolus (n=276), and 14·3% in Microtus arvalis (n=7). Of the serum samples of 488 forestry workers studied by IFA, 12 were LCMV-IgG positive (2·5%) and one DOBV-IgG positive (0·2%), however, the latter could not be confirmed DOBV-specific with a neutralization assay. Our results show a widespread distribution but low prevalence of DOBV in Trentino, and demonstrate that the arenavirus antibodies are a common finding in several other rodent species besides the house mouse.

Use of space by bank voles (Clethrionomys glareolus) in a polish farm landscape

1993 ◽  
Vol 8 (1) ◽  
pp. 19-24 ◽  
Author(s):  
Michŀ Kozakiewicz ◽  
Anna Kozakiewicz ◽  
Aleksy Łukowski ◽  
Tomasz Gortat
Keyword(s):  
Clethrionomys Glareolus ◽  
Use Of Space ◽  
Bank Voles

A survey of Cryptosporidium species in Skomer bank voles (Clethrionomys glareolus skomerensis)

1998 ◽  
Vol 244 (1) ◽  
pp. 119-122 ◽  
Author(s):  
S. A. Bull ◽  
R. M. Chalmers ◽  
A. P. Sturdee ◽  
T. D. Healing
Keyword(s):  
Cryptosporidium Species ◽  
Clethrionomys Glareolus ◽  
Bank Voles
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