Habitat Factors Associated with Bank Voles (Clethrionomys glareolus) and Concomitant Hantavirus in Northern Sweden

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.

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

Landscape Ecology ◽

10.1007/bf00129864 ◽

1993 ◽

Vol 8 (1) ◽

pp. 19-24 ◽

Cited By ~ 18

Author(s):

Michŀ Kozakiewicz ◽

Anna Kozakiewicz ◽

Aleksy Łukowski ◽

Tomasz Gortat

Keyword(s):

Clethrionomys Glareolus ◽

Use Of Space ◽

Bank Voles

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SOCIOECONOMIC, DEMOGRAPHIC AND LEGAL INFLUENCES ON CONSANGUINITY AND KINSHIP IN NORTHERN COASTAL SWEDEN 1780–1899

Journal of Biosocial Science ◽

10.1017/s0021932011000125 ◽

2011 ◽

Vol 43 (4) ◽

pp. 413-435 ◽

Cited By ~ 1

Author(s):

I. EGERBLADH ◽

A. H. BITTLES

Keyword(s):

19Th Century ◽

Mental Disability ◽

Northern Sweden ◽

Demographic Structure ◽

Cousin Marriage ◽

Future Studies ◽

Factors Associated ◽

Illegitimate Child ◽

The Social ◽

The 19Th Century

SummaryMost studies on consanguinity have been conducted on contemporary populations and have focused on the prevalence and types of preferred intra-familial marriage. With its comprehensive birth, marriage and deaths records dating back to the late 17th century, and the legal bar on first cousin marriage removed in the mid-19th century, Sweden offers unique opportunities to examine the factors that determine by whom, where and why consanguineous marriages were contracted. The present study covers the period 1780–1899 and presents a detailed portrait of cousin and sibling exchange marriages in the Skellefteå region of northern coastal Sweden. The combined prevalence of first, second and third cousin marriage increased from 2.3% in 1790–1810 to 8.8% in 1880–1899, and multi-generation consanguinity also increased significantly over the study period. The distribution and prevalence of first cousin marriages was strikingly non-random, with a significantly greater propensity for consanguinity among land-owning families, especially involving first-born sons, within specific pedigrees, and in a number of more remote inland communities. Additional factors associated with a greater likelihood of consanguineous marriage included physical or mental disability among males, and among females the prior birth of an illegitimate child. Besides the inherent interest in the social and demographic structure of this region of northern Sweden during the course of the 19th century, in future studies it will be important to determine the degree to which the observed patterns of consanguineous and sibling exchange marriages in these past generations could have influenced present-day genetic structure.

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Habitat factors differentiating the occurrence of Ostracoda (Crustacea) in the floodplain of a small lowland River Krąpiel (N-W Poland)

Knowledge and Management of Aquatic Ecosystems ◽

10.1051/kmae/2020012 ◽

2020 ◽

pp. 23

Author(s):

Agnieszka Szlauer-Łukaszewska ◽

Vladimir Pešić

Keyword(s):

Abiotic Factors ◽

River Channel ◽

Water Bodies ◽

Oxbow Lakes ◽

Factors Associated ◽

Main River ◽

Main River Channel ◽

Habitat Factors ◽

Sediment Sorting ◽

Physical And Chemical

We analysed the occurrence of ostracods in a small river, taking into account all the types of water bodies in the floodplain − these included helocrenes, oxbow lakes, and ponds, as well as the main river channel. The objective of the study was to investigate the variation in ostracod communities and identify those factors determining species distribution. The environmental factors considered were the type of water body, responsible for 17% of the variance, the physical and chemical water properties (29%), and the biotic and abiotic factors associated with the substrate type (23%). Among the factors associated with the substrate, sediment sorting, plant coverage and insolation were the most important. The ostracod fauna of the helocrenes differed from that of the other water bodies in the floodplain. In the water bodies of the Krąpiel valley and in the main river channel, 33 ostracod species were recorded, of which 26 were found in the main river channel. Refugia in the floodplain were the main source of the diversity and abundance of ostracods in the main river channel. The mean density in the main river channel was very low, at 330 indiv. m−2, while in the water bodies of the floodplain it was the greatest, reaching up to 5568 indiv. m−2.

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