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Small Mammals on Refuse Dumps As Sources of Pathogens and Parasites

VLCEK M
Veterinarni Medicina 36, 1991, 569-575

Five-year studies (1981-1986) were performed to investigate a total number of 2589 small mammals of 18 species (see Tab. I). Refuse dumps are marked for highly specific conditions. The difference between refuse dumps and natural habitats consists in more sufficient quantity of food, better sheltering possibilities and in highly specific microclimate particularly. As a result of aerobic and anaerobic decompositions of organic materials, temperature in dumps is approximately 50-degrees-C. From ecological point of view mammalian populations in refuse dumps could be classified in three groups according to the degree of their adaptation to this specific habitat: 1. permanent, abundant species, well-adapted to and closely connected with the habitat of dumps (Crocidura suaveolens, Mus musculus, Rattus norvegicus, Apodemus sylvaticus, Microtus arvalis), 2. permanent, common species which are, however, loosely connected with this habitat (Sorex araneus, Mustela nivalis), 3. rare species whose occurance in this habitat is largely accidental. Mammals living in the refuse dumps may be vectors of pathogens as viruses - out of 128 blood sera samples of Sorex araneus, Apodemus sylvaticus, Mus musculus, Micromys minutus, Microtus arvalis antibodies against Herpesvirus murium were detected in 8.13 % samples, occurence of antibodies against murine Cytomegalovirus were detected in 9.11% of samples of this group


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