To verify the extent to which the principles of island biogeography (or ecology) fit the theory in the model territory of the city and what is the impact of fragmentation and environmental variables on the ecological structure and diversity of biota (island area, age, vegetation structure, isolation degree, site degradation, etc.).
 Find out how the urban environment influences diversity of the autochthonous biota over time (compared to historical data) and space (ecological gradients).
 Based on the refugia theory to find out what is the difference between the biota of these types of refugia and to verify whether the ecologically and ecosozologically notable species survive in the forest remnants, and how numerous are their populations (the presence of non-indigenous, expansive or invasive species, the degree of isolation of the site, the current and planned anthropic activity in the vicinity).
 Find out if and to what extent the genetic diversity and structure of the populations of selected model species differs in the long-term, affluent, relatively natural parts and the isolated remains ("islands") of vegetation.