title: Evaluation of the Biomass of Beetle Families in Different Districts of Volgograd Region
abstract: The biomass of two groups of beetles was assessed in Volgograd region.All areas under research were different in their environmental conditions. In Kumylzhensky district, biotopes of the mountain oak, in Novonikolaevsky – the floodplain of the Kaldair River, in Chernyshkovsky – sand sections, and in Kalachevsky – steppe sections of the BolshayaGolubaya river valleywere studied. During the study of herpetobiont beetles, 2497 trap-days were conducted, with the help of which 2465 copies of beetles 
journal: Natural Systems and Resources