Саратовская область

The article presents the results of lichens’ research of the National Park «Khvalynsky» in 2011–2013 and data processing of herbarium collection SARAT and other researchers. The annotated list is pre- sented. It includes 65 species. Among them one specie (Cladonia acuminata) is new for the Saratov Region, two species (Cladonia decorticata, Cl. botrytes) are new for the Privolzhskaya Upland.

This article is devote to new halophytic vegetation associations of the Saratov region. The diagnostic species, full species composition, proportion of species are defined for each community. Processing and interpretation of obtained materials held in terms of ecological-floristic approach.

On the basis of our 2003–2014 field surveys of the pond cooler of BNPP (Saratov region), peculiarities of the spatial distribution and abundance of waterfowl in the winter were revealed. The stay of 6 waterfowl species was noted during this period in different parts of the pond cooler, namely, Podiceps cristatus, Anas platyrhynchos, Aythya ferina, Aythya fuligula, Bucephala clangula, and Mergus mer- ganser. Interannual variations in the population dynamics of some birds (A. platyrhynchos, B. clangula) were significant and caused by the pre-winter weather.

In this article the halophytic vegetation characteristic of three unique for the Saratov region territories is considered. The information about vegetation composition, structure and rare plants species is provided. The environmental significance of each territory is evaluated and the recommendations for inclusion it’s in the new integrated natural monuments of the region are given.

In this article the characteristic of plant communities with the participation of Halocnemum strobilaceum in Saratov region is considered. The information about vegetation composition, structure and rare plants species is provided. The environmental significance of the territory is evaluated and the recommendations for inclusion it’s in the new integrated natural monuments of the region are given.

The biological features of associative microorganisms Aphis pomi in the Saratov Region were studied. 12 species of bacteria from 2 genera were isolated. 94.2% of the species are able to use glucose; 76.5% – saccharose. Alkaline pH is preferred 100% of the isolates. Bacillus funiculus, B. clausii, B. oleronius, B. soli have pectinase activity, 83% of the species have the enzyme nitrogenase, 58% of species are capable to recove cellulose.

The biological features of associative microorganisms Schizaphis graminum in the Saratov Region were studied. 3 species of bacteria from genera Bacillus were isolated. 100% of the species are able to use glucose and xylose; 66,7% – saccharose and mannitol. Alkaline pH is preferred 100% of the isolates. Bacillus clausii, B. oleronius and B. soli have nitrogenase activity and are able to utilize nitrate

In this article the new halophytic vegetation associations from the territory of far Saratov left Volga bank regions are characterizing. The information about vegetation composition, structure and rare plants species is provided. The recommendations for conservation all new vegetation communities in the new integrated natural monuments of the region are given.

The paper presents new data on the distribution of 22 species listed in the Red Book of the Saratov region (2006).