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Comparative Analysis of Rations of Przewalski’s Horse (Equus Ferus Przewalskii, Poliakov, 1881) and Bactrian Camel (Camelus Bactrianus L, 1758) Breeded in Environment of Kuma-Manuch Depression’s Steppe

Authors: Marcocha К. S., Bashinsky А. G., Belyachenko A. V.

As known, food supplies is one of the most important factors of populations dynamics, which depends itself on a condition of nutrition and might change within. Objective of research is comparison analysis of rations of E. przewalskii and C. bactrianus, which was semi-corral breeded on a land of a “Rostovsky” nature reserve.

Assessment of Water Pollution Level, Processes of a Nitrification and Self-Treating of Ammonium Ions in a Small Water Reservoir of Ilevna

Authors: Sharov А. Y., Chesnokova S. M., Trifonova T. A.

In work data on content in Ilevna river`s water of the main anions and cations, heavy metals are submitted. The majority of the studied indicators within their maximum permissible levelshas been estab- lished. Excesses of these values were registered in four parameters. For phosphates excess of maximum permissible level is established in a source. For fluoride ion excess of the standard is revealed in the point of selection located above confluence of the Kartynriver. Up to gland maximum permissible values are exceeded in the Ilevna river estuary.

Comparative Characteristics of the Hygromorphic Composition of the Leading Families of Florae of Different Regions of Russia

Authors: Ivanova A. V.

Each family of higher vascular plants demonstrates a certain degree of ecological community. In this paper, the ecological characteristics of families were estimated by the ratio of groups of hygromorphs (ecological groups of species in relation to soil moisture conditions). Hygromorphs are part of the general sys- tem of plant ecomorphs, which was developed by A. L. Belgardas. The characteristics of the families of the flora of Samara region are compiled on the basis of data on 8 groups of hygromorphs.

Interrelation of Floristic and Landscape Diversity of the Territory on the Example of the Physiographic Area of Forest-Steppe Zone

Authors: Ivanova A. V., Kostina N. V., Kuznetsova R. S.

Floristic diversity is part of the overall biodiversity of the area and is associated with its sustainability. At present, there are several views on the classification of biodiversity due to the rather large number of its forms. The dependence of the species richness of flora on various factors was studied in a number of works. The influence of geographic factors on the species diversity of flora within the Soksky physiographic region of the forest-steppe zone (part of the province of the High Transvolga, Samara Region) is analyzed.

Ecological and Phytocenological Characteristics of Associations of Delphinium Pubiflorum

Authors: Shilova I. V., Kashin A. S., Ermolaeva N. N.

 posed to any significant anthropogenic impact due to the sufficient remoteness and inaccessibility of habitats. The area occupied by the associations does not exceed 400 m2. The total projective cover amounts to 90–100 %. The associations are quite rich and relatively even in terms of species composition. The number of species ranges from 48 to 72, and the most homogeneous association is the one in Krasnoarmeysky raion which also occupies the smallest territory. The number of species registered in one and the same association varies from one year to the next.

Bioindication of Environmental Quality of the Yakutsk City Administrative Districts on the Basis of Leaf Fluctuating Asymmetry and Seed Quality of the Silver Birch Betula pendula Roth

Authors: Soldatova V. Y., Shadrina E. G., Novgorodova D. N.

The environmental quality in the territory of Yakutsk city has been assessed by the leaf fluctuating asymmetry (FA) and seed quality (germinating capacity and germination energy) of the silver birch Betula pendula Roth. A total of 2,300 birch leaves were collected at 25 sites in vicinity of roadways and 21 samples of seeds were collected in the same sites. FA level at different sites varied within 0.042–0.057, which implies that the environmental quality varied from relatively normal to critical.

Phytoplankton as the Indicator of the Ecological State of Water (on the Example of the Lake Barskoye, Pskov Region)

Authors: Drozdenko T. V.

To assess the ecological status of water bodies, phytoplankton development indicators are widely used. The article deals with the use of microalgae in the assessment of water quality using the example of the Barskoye Lake. Collection and processing of hydrobiological material were carried out in the autumn of 2016 by standard methods. Phytoplankton is represented by 76 taxa below the genus belonging to 7 divisions: Chlorophyta (30), Bacillariophyta (16), Cyanophyta/Cyanoprocaryota (12), Euglenorhyta (7), Chrysorhyta (5), Сryptоphyta (3), Dinophyta (3).

The Influence of Ecological Factors on Variability of Morphometric Parameters of Rare Species Iris pumila L.

Authors: Kryukova A. V., Abramova L. M.

The study of intraspecific variability of rare plants allows to estimate the level of phenotypical variability, to establish borders of populations, to characterize microevolutionary processes, to reveal the ecological factors influencing formation of structure of populations that finally promotes preservation of a gene pool of rare species. Work purpose: studying of intraspecific variability of rare species Iris pumila L. in the south of the Cis-Urals of Bashkortostan Republic.

Particular Qualities of Flora and Vegetation Study of the Nature Monument «Blue Mountain» (Saratov Region, Ozinsky District)

Authors: Lysenko T. M., Ivanova A. V., Arkhipova E. A.

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.

Informational and Technical Support of Needing Protection Saratov Region Plant Communities Inventory

Authors: Davidenko O. N., Nevskiy S. A., Davidenko T. N.

Inventory needing protection plant communities is one of the directions of modern phytocenosical and ecologocal research. The Экология 365 information-technology support play the important role. This article provides information about the structure of electronic database “Needing protection plant communities of the Saratov region”.

The Spreading of Pear Moth – Cydia pyrivora (Lepidoptera: Tortricidae) on the North-East of the European Part of Russia

Authors: Zolotuhin V. V., Anikin V. V.

Pear moth – Cydia pyrivora is a narrow oligophage, whose larvae feed on the pith and pulp of fruit pears. In the region the species is connected here with warm biotopes on the Volga’s slopes and inhabits garden plots and abandoned gardens with pear trees. The areal extent in the north-east of the European part of Russia is considered for the pear moth Cydia pyrivora over a 60-year period. Over the past decade there has been quite a rapid expansion of the species to the north on the floodplain of the Volga river up to the Centre of the Ulyanovsk Province.

Structure of Colonies and Nesting Peculiarities of Common Starling (Sturnus vulgaris) and Tree Sparrow (Passer montanus) in Green Zone of Engels City

Authors: Melnikov E. Y., Gavrilenko V. S.

We researched the nesting habits of the common starling and the tree sparrow in a woodland of Engels city altered by humans, the Saratov region. Birds’ selectivity in the choice of nesting holes was found. The way birds use nesting trees in different vital condition was researched. The estimation of spatial distribution of nests was made by the method called “the nearest neighbor”.

The Effect of Pollutants on the Intensity of Biofilm Formation by the Strain Vibrio aquamarinus VKPM B-11245

Authors: Gildebrant A. V., Kushnareva D. N., Kaplina A. V., Mozgovaya A. I., Sazykin I. S., Sazykina M. A.

Most microorganisms in natural conditions exist in the form of biofilms. Due to this fact, the question of research of various substances influence on their formation process is relevant. This article presents data on the influence of various groups of pollutants, such as antibiotics (ampicillin, oxytetracycline), antiseptics (dioxidine, chlorhexidine), herbicides (glyphosate, clopyralid) and salts of heavy metals (CuSO4, HgCl2) in various concentrations on the intensity of biofilm formation by the strain Vibrio aquamarinus VKPM B-11245.

Ecological Characteristic of Feather Grass Habitat (Stipa pennata L.) in Various Parts of the Range

Authors: Polianskaya T. A., Suleymanova G. F.

The article gives an analysis of the ecological diversity of Stipa pennata cenopopulations in different parts of the range using D. N. Tsiganov’s amplitude ecological scales (1983) for 10 environmental parameters. Communities with S. pennata in the center of the range in the northeast of the Saratov right bank in the "Khvalynsky" National Park and at the northern border of the range in the eastern part of the Russian plain in the «Mari Chodra» National Park are considered.

Zoogeographical Analysis of Araneophauna of Steppous Plots of the Ulyanovsk Region with Data on Area Expansing of Several Species

Authors: Alekseenko Y. G.

Areal types are analyzed for spiders of stepped plots of the Ulyanovsk Region. Most of them belong to the Palaearctic ones (229 species). Trans-palaearctic (63 species), western-centralpalaearctic (50) and west palaearctic (40) areas are dominant. European eras are dominant among European-Siberian type, and west-central-Mediterranean dominate among the Mediterranean type.

Изменение пищевого спектра муравьев рода Formica s. str. (Hymenoptera, Formicidae) на территориях Саратовской области с антропогенной нагрузкой

Authors: Muldagalieva N. S.

Ants are essential component of ecosystems. They participate in soil formation, regulate the number of insects and spread the seeds of plants. The species of the genus Formica are most noticeable in the forests of the middle zone of Russia. The number and diversity of the prey of ants decreases in the areas experiencing a recreational load. The study was conducted on the territory of the natural park “Kumysnaya Polyana” (Saratov). The forest park is experiencing an anthropogenic load because it is located on the territory of a large industrial center – the city of Saratov. To study the Н.

Long-Term Monitoring of Macrozoobenthos in the Reservoir-Cooler of Balakovo NPP

Authors: Voronin M. Y.

For 8 years (2011–2018) macrozoobenthos samples were taken at the permanent stations in the reservoir-cooler of Balakovo NPP. Sampling stations were located in a highly heated part of the reservoir-cooler of the Balakovo NPP, and poorly heated part, in the adjacent water area of the Saratov reservoir. Differences were revealed: species richness and diversity; numbers and biomass; saprobity indices of the areas of these reservoirs; a positive or negative trend of long-term dynamics of the studied indicators macrozoobenthos.

Ontogenetic Tactics and Strategies of Oxycoccus palustris Pers. Survival in Boggy Ecosystems of Taiga Zones (Kirov Region)

Authors: Egorova N. Y.

The paper presents the results of studies of Oxycoccus palustris Pers. ontogenetic tactics and strategies expressed in various types of boggy phytocoenoses of the taiga zone in the Kirov region. The morphometric variability analyses of O. palustris in studied coenopopulations showed that most of parameters vary significantly. According to vitality index (IVC) the most favourable conditions are presented in mesotrophic cotton-grass sphagnum bog and oligotrophic sphagnum bog where the index was maximum – 1.04.

Bacteria Fouling in the Systems of Technical and Circulating Water Supply of the Novovoronezh Nuclear Power Station

Authors: Glinskaya E. V., Saveleva A. S., Voronin M. Y.

The paper presents the results of a study of microorganisms involved in the biofouling of technical and recycled water supply systems of the Novovoronezh nuclear power plant. Sampling was carried out at the following facilities: onshore pumping station (BPS), engine room (MH), spray pool (BB), central pumping station (CNS). The number of microorganisms that make up biofilms varied from 104 to 107 microbial cells in 1 ml. The species diversity at each object is represented by 2 to 3 types of bacteria.

The Impact of Aquatic Environments with Dissolved Synthetic Surface-Active Substances on Aquatic Plants

Authors: Qahramanov S. G., Torgashovа O. N., Belikov A. S., Nikiforova E. N.

Based on the identification and characteristics of the response of aquatic plants to spav-containing drugs, the potential danger of possible contamination of the aquatic environment with spav was assessed. The extent of damage from the effects of spavcontaining drugs on aquatic plants was determined using aquatic plants Elodea сanadensis Michx.(1802), Potamogeton perfoliatus L. (1753), Myriophyllum spicatum L. (1753), Najas minor All. (1773) and Lemna minor L. (1753).

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