Conchological variation of widely common species of terrestrial mollusks of Uzbekistan

Abstract

This article presents current research on the variability of widespread common species of terrestrial mollusks of the family Buliminidae of Uzbekistan. The study of features of the population structure of species - indicators of changes in biocenoses under the influence of various factors, including anthropogenic ones, is an important component of environmental monitoring of various territories. These species, in particular, include terrestrial mollusks Pseudonapaeus albiplicatus, Psendonapaeus sogdianus, Pseudonapaeus secalina, Psendonapaeus miser, Chondrulopsina fedtschenkoi. A number of studies have been devoted to the analysis of intrapopulation variability of these species. In the course of these studies, it has been shown that these species are sensitive to successional processes with the morphology of their shell, as well as the frequency ratio of polymorphic characters. In this work, biotopic variability of morphometric characters, conchological variability of the shell, variability of morphometric characters of different habitats of Pseudonapaeus albiplicatus, Psendonapaeus sogdianus, Pseudonapaeus secalina, Psendonapaeus miser, Chondrulopsina fedtschenkoi were studied.Awhich, living in arid conditions, adapt to sharp changes in temperature and humidity, while acquiring a number of additional characteristics, such as: parietal callus, mouth lips and teeth, which play one or another role in reducing the loss of moisture from the body of mollusks.The indicator ability of these species is enhanced by the relative inactivity of individuals and at the same time by the large number of populations and wide distribution throughout Europe. It seems that the study of populations of these mollusks living in various landscapes will provide a clearer picture of the state of the environment, and, in addition, will add to the range of data on microevolutionary processes currently occurring. Goal of the work. Comparison of intrapopulation variability molluscs of the family Buliminidae living on the territory Uzbekistan.