Саратовская область

It is defined macro- and microelement composition of glaukonite ore of the Beloozersky field of the Saratov region. It is established that it contains a set macro- and the minerals necessary for a mineral delivery of plants. The possibility of application of the studied glaukonite as tools for processing of seeds of grain seeding before crops, on the example of seeds of wheat and rye is considered.

The research presents the results of morphological study of seeds belong to five species of Iris L.: I. aphylla L., I. halophila Pall., I. pseudacorus L. I. pumila L., I. sibirica L. which existed in Saratov region and cultivated in the botanical gardens of national research of Saratov state university, previously named «N. G. Chernyshevsky».

The abundance dynamics of Falco vespertinus is considered on the basis of our field surveys carried out within the Saratov region and adjacent territories in 2011–2016 and analysis of the literature data. It is shown that F. vespertinus is now presented by stable populations in the spacious territory of the Trans-Volga part of the region. However, some reduction of its abundance was registered here for the last several decades of the 20th century. Currently, the falcon populations in the Volga right-bank region can be characterized as mosaic, and the F.

In the Saratov region all species of Iris are listed in the regional Red Book, with this connection, to preserve these plants, it is necessary to introduce them in an extensive researches, protection and establishing them in the literature. special interest is the study of seeds due to the direct relation with the potential possibility of generative propagation of Iris species, the article presents the results of an anatomical study of the seeds of seven species which belong to Iris L. in Saratov region flora.

The ecological problems of the Saratov region in the Year of Ecology and Protected Areas are discussed: the degradation and destruction of natural complexes, the reduction of species biological diversity and its causes, the need to expand the network of regional SPNA, reduce atmospheric pollution, hydrosphere and lithosphere (limiting emissions of harmful substances and reagents, non-waste technologies, introduction of alternative energy, modern technologies for waste processing and wastewater treatment), soil fertility conditions, growth new technogenic pollutants (ele

Gamaside mites have ancient, strong links to a number of pathogens of natural-focal diseases. They constitute a considerable part of ectoparasites living on small mammals. Ac- cording to literature data and own research results, the fauna of Gamaside mites in the Saratov Region includes 44 species. Objec- tive of the study was to investigate the current state of Gamaside mite fauna ecologically associated with rodents in the territory of the Krasnoarmeisk District of the Saratov Region. The research was conducted in September-October, 2010 and in August, 2012.

Described is the fauna of bloodsucking mosquitoes found in the Saratov Region. The article is based on the data collected dur- ing the field surveys in the flooded biotopes along the Volga and Don river basins and Kamysh-Samara enclosed lake basin, as well as on the literature data available. By 1970s, 31 species of mosquitoes have been spotted in the Region. The paper presents qualitative and quantitative changes over the 45-year period in the populations of bloodsucking mosquito, habitant in the flooded areas of different rivers.

In the article the results of short-term investigations of water-land biotopes of the natural monument «Rasskazan’ Lake» (Balashov district of the Saratov Province) is presents. Compiled a list of 67 species from 9 families Coleoptera.

The characteristics of the flora and steppe communities of the nature monument of regional importance of the Saratov region «Blue Mountain » is given. The flora of the territory has preserved features of the forest, which is manifested in the head of the family spectrum of the corresponding floristic sample. At the same time as a result of the fires that occurred, the type of forest changed: the oak tree was replaced by aspen. A high position in the family spectrum of Rosaceae is noted, which is not typical for the subzone of turf-grass steppes.

Until this article in the Saratov Province special studies of fungivorous beetles fauna of Coleoptera was carried out. The collection material was conducted by the authors in the spring and summer of 2017 with fruiting bodies of different species of xylotrophic Basidiomycetes of the families Polyporaceae and Fomitopsidaceae on the territory of 4 districts of the Saratov Province (Voskresenskiy, Khvalynskiy, Saratovskiy, Engelskiy). As a result, on 4 species of xylotrophic fungi were found 13 species of Coleoptera from 6 families.