| Abstract [eng] |
The purpose of this diploma paper was to analyse the sources of literature and other available materials (reports of monitoring, data bases), valuating investigative birds species organisms' impurity and possible genotoxic effect of this. And finally to exercise methods of cytological micronuclei experiments and adduce results analysis and statistical processing methods. Cytogenetic experiments (micronuclei test) were made in distinct species in Paridae and Sylviidae families. The highest frequency of micronuclei was found in populations of Parus major – 10,5%, the lowest – in populations of A. arundinaceus 0,55% micronuclei. This can show different species sensitivity to cytogenetic and genetic environmental influence. The highest possibility that the distinctions of micronuclei frequency in erythrocytes between species are mostly determined by the difference of nourishment and the accumulative pollution of nutrition objects. It particularly depends on the quality conditions in their ecological niches. |
