Characteristics of the butterflies on various forms of land uses

Abstract

Abstract The purpose of the work was to identify the occurrence of butterflies depending on landform uses and human influence on the population domination structure. The research was conducted in the ‘Krzywda’ field-and-forest Site occupying 172 ha. The area consists of the land leaving in fallow, meadows and wasteland including about 68 ha of swamps that are strongly eutrophic due to human economic activity. The area is subjected to artificial succession inhibition processes in the form of mowing and cutting of trees and shrubs. 32 species of butterflies were recorded during the research, that is, 20% of all species within this group occurring in Poland. The research has approved the great spatial and quantitative diversification of the occurring area of butterflies depending on the form of the land uses. The greatest number of species and their greatest populations were found in the land laying in fallow without the removal of the biomass. The least number of species and their specimens were collected in the unmown laying fallow land. Lycaena virgaureae was the most numerous species collected. The correct domination structure characterized by a small number of numerous species and a large number of species consisting of a low number of specimens. Processes observed in the studied Site subjected to various types of land use influence the occurrence diversity of this group of insects.