Assessment of beetle species diversity of the genus Carabina in the forest area of Primorskaya State Academy of Agriculture
Ekaterina V. Panfilova & Yana V. Kim>
Primorskaya State Academy of Agriculture, Ussuriisk, Russia
Forest ecosystems experience powerful anthropogenic influence. It leads to a sharp reduction of forest area. Since 2000s the area of intact forests is reduced by 40,2 million hectares. This process affects the decline of biological diversity, which entails many side effects including the consequences of a global scale. Permanent destruction of forests is one of the reasons for the increase of greenhouse gases concentration in the atmosphere. At a global scale 463 million hectares of the world's forests are allocated for conservation of biological diversity. The forests occupy almost three quarters of the Primorskiy region and they are characterized by a high biodiversity of flora and fauna. Experimental forest of Primorskaya Agricultural Academy has an area of 28830 hectares, and it borders with Ussuryiskiy state natural reserve named after of V.L. Komarov. Over 35% of the area is occupied by forest plantations of Korean pine. Research was conducted in the uneven-aged pine forests. Nine plots have been established to account beetles of the genus Сarabus, 15 Barber's traps were installed in each plot. The beetles are defined by Lerr's index. 1109 beetles of nine species were caught during spring and summer period: C. billbergi, C. vientinghoffi, C. venustus, C. careniger, C. granulatus, C. smaragdinus, C. schrenkii, C. makleii, C. maakii. We traced the dynamics of the beetles number and the influence of abiotic factors on them. It has been revealed, that activity of bugs has strong relation with humidity of litter and ground wood debris and is limited by duration of the periods without precipitation.