-
Article
Features of the Population Dynamics of Larks (Alaudidae, Aves) in the Semi-Desert Zone of the Saratov Trans-Volga Region
Abstract—The results of our long-term monitoring of a family of larks (Alauda arvensis L., Melanocorypha calandra L., M. leucoptera Pallas, M. yeltoniensis J.R. Forster, and Calandrella rufescens Vieillot) in the...
-
Article
Estimation of the Ecological Density of Some Species of Game according to Winter Route Censuses
Abstract—The possibility of determining the ecological density of game animals according to winter route censuses is considered. Determining the density of game animals is a prerequisite for determining their pre...
-
Article
Estimation of the Growth Rate of Wild Ungulate Populations in Saratov Oblast by the Dynamic Series of Their Numbers
Abstract—The present paper is devoted to the study of the possibility of estimating the reproductive potentials of wild ungulate populations and, possibly, other large mammals, on the basis of the time series of ...
-
Article
Characteristics of Great Bustard (Otis tarda) (Otididae, Aves) Habitats in the Trans-Volga Region according to Food Availability during the Chick Rearing Period
The results of our studies of potential nesting sites for bustards in the Saratov Trans-Volga region are presented. The characteristics of plant communities, as well as the quantitative and qualitative composi...
-
Article
State of Birch Outliers in the Southern Trans-Urals in the Zone of High Anthropogenic Load on Natural Ecosystems
Abstract—The results of our study of the ecosystem diversity and state of forest outliers located in the Shchuchanskii district of the Kurgan region are presented. The species composition of forest stands, produc...
-
Article
Analysis of the Long-Term Dynamics of the Lark Population (Alaudidae, Aves) in the Semi-Desert in the Northwestern Caspian Lowland
Abstract—The dynamics of the numbers of larks inhabiting several areas differing in the physical and geographical (landscape) conditions and the level of anthropogenic impact (pasture) on the natural environment ...
-
Article
The Density of Larks (Alaudidae, Aves) in the Semi-Desert of the Trans-Volga Region in Connection with Landscape Wetting Dynamics
The dynamics of the density of nesting pairs of five lark species (Alaudidae) living on the territories of the Mezhuzenskii and Uzeno-Dyurinskii Plains, on the northwestern tip of the Caspian Lowland, and in t...
-
Article
Habitat Structure and Abundance Dynamics of Marmota bobak Müller, 1776 (Sciuridae, Mammalia) in the Saratov Region at the End of the 20th–Start of the 21st Centuries
The paper presents data on the abundance of bobak marmot (Marmota bobak Müller, 1776), obtained from 1987 till 2019. All censuses were performed according to one technique developed by us in the late 1980s. Durin...
-
Article
Long-Term Dynamics of the Community Structure of Larks (Alaudidae, Aves) in the Northwestern Caspian Lowland
Abstract—We studied the population structure and the number of larks in the steppe and semidesert zones of the Caspian Lowland (within the territories of the Alexandrov-Gai district of Saratov region, Russian Fed...
-
Article
Scientific Bases for Enuring Productive Longevity of Agrolandscapes in Russia
V.V. Dokuchaev’s ideas are the foundation of modern ideas about rational nature-usage methods in our steppes in order to ensure productive longevity of agro-ecosystems and agrolandscapes, to obtain high and su...
-
Article
Abundance of the Little Bustard Tetrax tetrax L. 1758 (Otididae, Aves) in Saratov Oblast
Abstract—Based on the count data obtained by various methods and their statistical processing, the abundance of the fall population of the little bustard in the Saratov Trans-Volga region was estimated from the l...
-
Article
Analysis of Soil and Vegetation Cover from Satellite Imagery to Assess its Relation to Lark Habitats (Alaudidae, Aves) in the Trans-Volga Semi-Desert
Abstract—This work was carried out in the Dzhanibek and Bokey Orda districts of the West Kazakhstan region of the Republic of Kazakhstan in two key areas. The possibility to study the relationship between the dis...
-
Article
Arthropod Abundance at Bustard Nesting Sites in the Saratov Trans-Volga Region
The results of study of the quantitative and qualitative composition of arthropod communities at potential nesting areas of great bustard (Otis tarda) in the Saratov Trans-Volga region are reported. Specific data...
-
Article
Statistical Analysis of the Influence of a Disturbance Factor on Formation of the Spatial Structure of the Great Bustard (Otis tarda L.) (Otididae, Aves) Population in the Trans-Volga Region
This paper examines the influence of the location of settlements, railroads, and highways on the spatial structure of the Otis tarda population in the Trans-Volga region that was studied in the years 1998–2016 in...
-
Article
Abundance dynamics of the Trans-Volga great bustard (Otididae, Aves) population
The results of our study of the abundance dynamics of the great bustard population in the southern part of the Saratov Trans-Volga region for the period from 1998 to 2015 are presented on the basis of censuses...
-
Article
Structural dynamics of the breeding population of larks (Alaudidae, Aves) in the semidesert of the Saratov Trans-Volga region
According to our data on the density of breeding pairs of five lark species obtained from route censuses, the dynamics of their population in the Mezhuzenskii and Uzensko-Dyurinskii landscapes of the semideser...
-
Article
Nesting population structure of larks (Alaudidae, Aves) in typical semidesert habitats of the Caspian Lowland
The distribution of nesting populations of individual lark species by semidesert habitats in the Caspian Lowland is analyzed on the basis of data on the density of nesting pairs estimated by transect counts. T...
-
Article
The structure of ground-nesting bird assemblage in the Saratov Transvolga region and its intracentennial and interannual dynamics
The dynamics of the structure of ground-nesting bird assemblage in the Transvolga steppe region are considered with regard to both intracentennial trends and interannual changes. It is shown that the structure...
-
Article
Factors causing long-term dynamics in the abundance of the Trans-Volga Great bustard (Otis tarda L.) population
The results of our survey of bustards in the southern part of the Saratov Trans-Volga region over an area of 12000 sq. km in 1990–2010 are presented; analysis of the abundance dynamics is performed; and the fa...
-
Article
Current status of the Russian desman habitats in small rivers of the Don River Basin in Saratov oblast and the abundance of this species
The Don Basin rivers confined to Saratov oblast were searched for the Russian desman in 2009–2011. The suitability of habitats for this species was assessed. Potentially negative factors for the Russian desman (D...
