Animals community (mesofauna) diversity of technogenic soil at the Nicopol manganese ore basin
Dnipropetrovsk State Agrarian University
25, Voroshylov St., Dnipropetrovsk 49600, Ukraine
The animals community diversity (mesofauna) had been investigated at the recultivation site of the Nicopol manganese ore basin in April-May 2012. The performed investigation demonstrates that each of the technozem type characterized by specific complex of soil mesofauna. The total abundance and diversity of animal community nave been shown as basis of technogenic soil zoological diagnostic. The ratio of biotopical affinity ecological groups has been proved to indicate the soil and microclimatic conditions formed in the whole area and within each technozem type. Perhaps the presence of forest species in the ecological animal community structure of technogenic soil connected with migration from neighboring artificial forest biocenosis. This phenomenon is episodic and may be result of similarity of microclimatic conditions of technogenic soil and surrounding forest ecosystems in the spring. The analysis of the obtained data shows that construction of pedozem studied is not able to provide the formation of diversity and abundance of soil animal community and characterized by less favorable conditions for the existence of soil animals than other technogenic soil types. In accordance with the Tineman principle the species dominance is the indicator of the habitat optimum level. Rossiulus kessleri has been found as superdominant at the sod-lithogenic soils on red-brown clay. So conditions formed on sod-lithogenic soils on red-brown clay may be considered as very different from the optimum for soil mesofauna in general. Sod-lithogenic soil on loess and on the gray-green clays has been found as the most favorable for diversity and abundance of soil mesofauna community formation.
Keywords: soil mesofauna, biodiversity, reclamation