Shapovalova I.B. Transformation of Ornitofauna in the Ptan River Valley (Southeast of Tula Region) under the Constant Anthropogenic Impact // Ecosystems: ecology and dynamics. 2020. Vol. 4. No 4. Pp. 105-112. | Abstract | PDF | Reference |

The paper presents research materials on the study of the state of forest-steppe floodplain ecosystems (including ornithocomplexes) under conditions of increasing anthropogenic impact (pressure) and climatic changes. For this work the physical and geographical features of the research area (relief, climatic conditions) were clarified, and geobotanical and soil studies were carried out for a second time for the territory and coastal bird complexes of the floodplain of the middle part of the Ptan River (Kurkinsky District, Southeast of Tula Region). We clarified the composition and structure of the floodplain ecosystem components, analyzed the literature sources and used the data from reconnaissance spring-summer ornithological surveys of 2019. A quantitative assessment of changes in individual components of the land ecosystem of the river floodplain in the north of the forest-steppe zone (including ornitocomplexes) was given. The environmental consequences for the floodplain, river valley and watershed areas due to the impact of natural and anthropogenic factors of changes in the water regime of the territory are presented. We revealed the dynamics of abundance of certain bird species populations in floodplain ornithocomplexes under the influence of water and anthropogenic factors. They were identified as the most sensitive components of land ecosystems and were marked as a group of indicator species.

Keywords: evaluation, influencing factor, forest-steppe region, species composition, abundance, population abundance, richness, floodplain ecosystems, river floodplain, intrazonal landscape, hydrological regime, climate, ornithocomplex, population, wetland complex.

DOI: 10.24411/2542-2006-2020-10076