The stability of the mollusca communities of the technosol in Nikopol manganese ore basin

Authors

  • K. V. Kovalenko Bogdan Khmelnitsky Melitopol State Pedagogical University

DOI:

https://doi.org/10.31548/bio2019.03.007

Keywords:

terrestrial mollusks, tehnozems, reclamation, community dynamics, stability

Abstract

The regularities of the stability of terrestrial molluscs community in the Lyapunov sense that there in artificial soil-like structures within the Nikopol manganese ore basin, namely pedozems and sod-lithogenic soils on red-brown clay, gray-green clay and loess. The studies were conducted during the 2012-2014 biennium. on site remediation of Nikopol manganese ore basin in Pokrov. The basis for describing the dynamics of communities are taken cascading Lotka-Volterra equations. It was established that between the number of species there is a positive correlation between the presence of which can be attributed to common features of ecology of terrestrial molluscs in general. The nature of interspecies relationships has its own specificity, depending on the type of biogeocoenosis. The study found the most sustainable communities of terrestrial molluscs are formed on the sod-lithogenic soils on loess loam and least stable - on sod-lithogenic soils to gray-green clays and pedozems. For sod-lithogenic soils found the biggest off-season difference of sustainability indicators. The most sustainable communities in the spring and summer, and the least stable - in the summer-autumn period. Most regular factor in the sustainability of communities is negative autocorrelation kinds of communities, most often it is the dominant form of B. cylindrica. Interspecific interactions have both stabilizing and destabilizing effect, which is the specificity of each type of community dynamics tehnozems. A promising area of research can be considered as an assessment of the functional role of terrestrial molluscs community structure mezopedobionts tehnozems. The knowledge of the dynamics of terrestrial molluscs community will help address issues of management functional properties rekultozems models.

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Published

2019-08-23

Issue

Section

Ecology