The herpetobiont coleoptera of urban trees

Nowadays one of the major problems is the prediction and assessment of the environment. The important component of the fauna's urbanized system is the representatives of herpetobiont coleoptera. The detection of changes in the community compositions of the ground layer insects allows using the ground layer insects for quality assessment of the environment. In our article you can find the representation of the research of the faunistic structure of the soil insects' population, which belongs to the urban plantations of the Volgograd-city. The green plantings of all material collecting points were combined in 5 habitat categories. It was detected that there are 207 species from 133 races and 28 stirpes in the herpetobiont's fauna. Also it was noted that the soil insects choose the ecological niches in those the most suitable conditions are formed and kept. So the Calathus Distinguendus Chaudoir was founded most of all in the roadside plantings percentagewise of 51,0% and 43,5% - in the forest-park of the Mamayev Kurgan for the whole period of the attendance. Its abundance in the parks achieved 35,0%, in the plantings of the Green Ring - 10,6%, and as for the canalside forest plantings its abundance achieved only 3,3%. According to the captured data the insect-complex of the Green Ring plantings is the richest and varied in structure. 155 types of the soil-insects are fixed here. The canalside forest plantings' population of the herpetobiont is presented by 91 types of insects. 72 types of the coleoptera are referred to the forest-parks. The park's fauna of the soil-insects is presented by 63 types. The insect-complex of the roadside plantings is the poorest in the diversity of insects. 43 types are referred to it. The stripes of Carabidae, Tenebrionidae, Curculionidae, Scarabaeidae, Elateridae are the richest and varied in structure in most habitats of the city. It was noted that the richest communities of insects are presented by single instances of species, whereas the communities that are presented by a single strain are characterized by the high numbers of species. It's detected that the superdominance is typical for the unstable societies with disordered balance. The urbocenosises have varying degrees of transformation, and as a result we can notice the significant reconstruction of the ground layer insects' communities, which is expressed in qualitative and quantitative changes of the stock's structure.