| Abstrakt: |
Abstract—Species diversity of the overstory, understory, undergrowth, ground vegetation layer, and the taxocene of ground beetles (Coleoptera: Carabidae) was assessed in forest ecosystems of Southern Primorye with different degrees of disturbance. Diversity estimates were obtained in 13 permanent test plots established in nominally primary forests and forests affected by selective logging and fires. The results of ANOVA showed that the corresponding groups of plots significantly differed from each other in the species composition of the overstory, understory, and undergrowth and in Shannon index values for the overstory, understory, and ground beetle taxocene. The Jaccard index of floristic similarity for species of the ground vegetation layer was below 0.1 in comparisons between test plots within the groups of Korean pine and oak forests and ranged from 0.3 to 0.5 in comparisons between these groups, indicating a radical change in the composition of herbaceous plants after pyrogenic forest transformation. The numbers of ground beetles were higher in oak forests, but Shannon index for their taxocene was higher in Korean pine forests. It is concluded that moderate selective logging does not lead to significant changes in the species composition of forests, whereas regular fires in forests are a hazard to their biological diversity. [ABSTRACT FROM AUTHOR] |
Full text from SpringerLink