National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Importance of genetic diversity of plant populations and its determinants
Sýkorová, Mariana ; Münzbergová, Zuzana (advisor) ; Dostálek, Tomáš (referee)
This thesis is mainly a review of scientific papers and professional literature dealing with genetic diversity. Nowadays, there is an extensive loss of genetic diversity that is caused by anthropogenic influences. The loss of genetic diversity is reflected in show a loss of adaptability of populations to changes in the environment, and hence the lower ability of populations to survive in their natural habitat, which can lead to the extinction of these populations and eventually to of extinction of the whole species. The aim of this bachelor thesis is to summarize the knowledge about the genetic diversity of plant species, most of them also in the context of changes in landscape management. I describe the basic indicators that determine the genetic diversity and, at the same time, factors that may affect genetic diversity, including factors influencing genetic diversity in relation to the historical state of the landscapes.
Small terrestrial mammals along natural and anthropogenic landscape barriers
BOHDAL, Tomáš
The dissertation summarises the result of the study of small terrestrial mammals (Eulipotyphla, Rodentia) along natural (watercourses) and anthropogenic (road, highway) landscape barriers. It points to an interesting phenomenon of road drainage ditches as a transitional migration environment, further it assesses the level of locomotion activity, the rate of structure of subpopulations and the frequency of crossing watercourses in the case of selected rodent species. It contributes with its results to solving problems concerning the effect of these landscape structures on the species diversity, ground mobility or genetic structure of small terrestrial mammals. ˙˙˙˙

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