The Emergence of Amphibiotic Insects From a Floodplain Lake in the Usman Forest in the Central Russian Forest-Steppe

2016 ◽  
Vol 23 (4) ◽  
Keyword(s):  
Forest Steppe ◽  
Floodplain Lake ◽  
Amphibiotic Insects ◽  
Russian Forest

scholarly journals INTRASPECIFIC POLYMORPHISM OF PLANTS IN THE СENTRAL RUSSIAN FOREST-STEPPE

Ekosistemy ◽  
2020 ◽  
Vol - (21) ◽  
pp. 31-39
Author(s):  
Z. P. Mukovnina ◽  
A. A. Voronin
Keyword(s):  
Botanical Garden ◽  
Intraspecific Diversity ◽  
Continuous Series ◽  
Forest Steppe ◽  
State University ◽  
Natural Flora ◽  
Long Time ◽  
External Causes ◽  
The Impact ◽  
Russian Forest

Research of the flora of some areas of the Central Russian forest-steppe shows that a number of plants has deviations from the main species characteristics. The fact that there is a continuous series of variations from individual to species level in nature has long been known for a long time (Darwin, 1991). The reasons and results of this are very different and unpredictable. The ability of plants to change their phenotype is genetically determined. The scope of intraspecific differentiation depends on many external causes. The intraspecific potential of plants reveals itself when ecological situation and geographical fragmentation modify. In result, populations which significantly differ from the main genotype are formed. The impact of new environmental conditions is shown in the examples of Genista tinctoria L., Achillea millefolium L., Salvia pratensis L. The Trifolium lupinaster or Lupinaster pentaphyllus is an example of the introduction of geographically distant genetically stable races. Some species can be represented by different morphobiotypes. For example, erect (haying) and lying (pasture) forms of Lotus corniculatus, Medicago falcata, Astragalus onobrychis. There are some transitional forms. Populations of tall and low growing Anemone sylvestris were observed. A pronounced manifestation of intraspecific diversity is the polychrome of flowers. It was found in рlants from different families: species of iris, Schrenka tulip (Tulipa suaveolens), lily of the Saranka (Lilium pilosiusculum) and others. The collection of the botanical garden for over 20 years contains garden forms of plants of natural flora, which appeared due to spontaneous new formations. These are variegated forms of Aegopodium podagraria and Galeobdolon luteum. The results of the introduction of species and intraspecific diversity of rare and economically valuable plants in the Botanical garden of the Voronezh state University are presented.

scholarly journals GROWTH OF TREE SPECIES IN PROTECTIVE FOREST PLANTATIONS AND FORMATION OF FOREST AND RECOVERY COMPLEXES IN CONDITIONS OF CENTRAL RUSSIAN FOREST STEPPECONDITIONS OF CENTRAL RUSSIAN FOREST STEPPE

2020 ◽  
pp. 109-113
Author(s):  
Elena Mikhina ◽  
Vyacheslav Mikhin
Keyword(s):  
Tree Species ◽  
Average Diameter ◽  
Soil Conditions ◽  
Forest Steppe ◽  
Average Height ◽  
Typical Chernozem ◽  
Fast Growing ◽  
Birch Tree ◽  
European Part Of Russia ◽  
Russian Forest

Protective forests in the central forest-steppe of the European part of Russia were created at different times with a diverse assortment of plants. Fast-growing tree scpecies in the composition of artificial linear stands are introduced from the moment of their formation. Soil and hydrological conditions are one of the main conditions on which successful growth of tree species depends. The highest biometric growth indicators in middle-aged plantations in height of balsamic poplar are observed on typical chernozem (0,82 m / year), less significant (0,65 m / year) on leached chernozem. The greatest activity in growth is manifested up to the age of 13 - 18 years. The silver birch tree is characterized by a decrease in activity in height growth since the age of 14 - 20 years. The average annual increase to the 30 year period is 0,60 – 0,74 m / year. In the best soil conditions (typical chernozem), growth rates are higher. In forest belts, both fast-growing (poplar, birch) and slow-growing and long-lasting (english oak) tree species have differences in height and diameter growth depending on their placement in the transverse profile. At the age of 33-45 years, a convex profile is formed, where the average height of the central rows is 10,6 – 16,8% more than the marginal ones and the average diameter of the extreme rows exceeds diameter of average rows by 10,1 – 19,9%. In fast-growing tree species, the active reclamation effect of beneficial protective factors is already evident in youth and at the same time, the width of the inter-strip cells on chernozem soils should not exceed 600 - 650 m.

scholarly journals Centrohelid Heliozoans (Centroplasthelida Febvre-Chevalier et Febvre, 1984) from Different Types of Freshwater Bodies in the Middle Russian Forest-steppe

2018 ◽  
Vol 57 (4) ◽  
pp. 245-268
Author(s):  
Kristina I. Prokina ◽  
◽  
Dmitry G. Zagumyonnyi ◽  
Denis V. Tikhonenkov ◽  
◽  
...  
Keyword(s):  
Forest Steppe ◽  
Different Types ◽  
Freshwater Bodies ◽  
Russian Forest

scholarly journals ECOLOGICAL AND GEOGRAPHICAL FEATURES OF VEGETABLE INVASIONS IN THE CONDITIONS OF THE ENTRAL RUSSIAN FOREST-STEPPE

Ekosistemy ◽  
2020 ◽  
Vol - (21) ◽  
pp. 59-67
Author(s):  
L. A. Lepeshkina
Keyword(s):  
Invasive Species ◽  
North American ◽  
Invasive Plant ◽  
Plant Invasions ◽  
Forest Steppe ◽  
Invasive Component ◽  
Asteraceae Family ◽  
Continuous Character ◽  
Russian Forest ◽  
Forest Habitats

This study discusses the ecological and geographical features of plant invasions in the Central Russian forest-steppe. The studies have been conducted since 2002. The obtained data are summarized in the context of the ecological-geographical (biogeographic) approach. The main trends of phytoinvasions in the region are identified. The invasive component of the flora is characterized by high diversity of North American elements (31 species, 40.8 %), moreover, many species formed secondary European-North American (13 species, 17.1 %), Holarctic (11 species, 14.5 %) and cosmopolitan (8 species, 10.5 %) habitats. The Asteraceae family is characterized by high variety of species (19 species (25.0 %). Groups of invasive species are almost equal by the type of drift. Thirty-two species (42.1 %) are ergasiophytes (plants deliberately introduced to a region), 36 species (47.4 %) are xenophytes (random “aliens”) and 8 species (10.5 %) have mixed type of drift (xen / ergasiophytes, ergasio/xenophytes). The invasive component of the flora of the Central Russian forest-steppe is characterized as mesophytic, forest-steppe, Eurasian-North American with a predominance of monocarpic biomorphs. The research proves high saturation of communities of broad-leaved (20 / 26.3 %), mixed (25 / 33.0 %) and pine (23 / 30.3 %) forests, meadow steppes (20 / 26.3 %), floodplain meadows (19 / 25.0 %) and coastal habitats (19 / 25.0 %) with invasive species. The analysis of the occurrence of 49 invasive species in the communities of the Central Russian forest-steppe determines the confinement of 27 species to the edge-meadow-steppe and 22 species to the edge-forest habitats. The zonal type of secondary area is characteristic for 11 species of xenophytes. Longitude (from West to East) settlement trends are recorded for 5 species. It is substantiated that the geography of the secondary range has a continuous character for 18 invasive plant species within the region. More than 20 invasive species show a tendency to uniform distribution throughout the study area.

scholarly journals CONTEMPORARY CLIMATE CHANGES AS A FACTOR FOR CENTRAL RUSSIAN FOREST-STEPPE LANDSCAPE DEVELOPMENT (IN THE KURSK REGION TAKEN AS AN EXAMPLE)

2019 ◽  
Author(s):  
Olga Pavlovna Lukashova ◽  
Margarita Alekseevna Bogatyreva ◽  
Elena Sergeevna Dmitrova ◽  
Irina Yuryevna Soshnikova
Keyword(s):  
Climate Changes ◽  
Forest Steppe ◽  
Landscape Development ◽  
Contemporary Climate ◽  
Kursk Region ◽  
Russian Forest

scholarly journals MODERN CLIMATE CHANGE AS A FACTOR IN THE DEVELOPMENT OF THE LANDSCAPES OF CENTRAL RUSSIAN FOREST-STEPPE (ON EXAMPLE OF KURSK REGION)

2019 ◽  
Author(s):  
Lukashova Olga Pavlovna ◽  
◽  
Bogatyreva Margarita Alekseevna ◽  
Dmitrova Elena Sergeevna
Keyword(s):  
Climate Change ◽  
Forest Steppe ◽  
Kursk Region ◽  
Russian Forest

scholarly journals Soil invertebrates of the Russian forest-steppes (review of XX-XXI century publications and the revision of the results)

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Vyacheslav H. Mordkovich ◽  
Ilya I. Lyubechanskii
Keyword(s):  
Soil Fauna ◽  
West Siberia ◽  
Steppe Zone ◽  
Forest Steppe ◽  
Animal Populations ◽  
High Species Richness ◽  
Soil Protozoa ◽  
The Subject ◽  
Russian Forest

The review describes the main stages of the formation and development of soil zoology as a science at the intersection of zoology, ecology and soil science, approximately over a century, i.e. from the beginning of the 1920s until now. The analysis of soil-zoological work carried out in the forest-steppe zone, the subject of which was the fauna and population of soil protozoa, worms, molluscs, microarthropods and larger arthropods, collectively referred to as mesofauna. The forest-steppe was chosen as the topic of the review because it is well-studied and because most of the work on this biome was published in Russian, and little is known abroad (which is not surprising, since more than 80% of the forest-steppe territory is located in Russia). The authors reviewed about 170 the most significant works inventorying soil fauna, analyzing its ecological structure and the functional role of its various components, as well as the studies of the anthropogenic impact on soil animal populations. The works are presented on a territorial basis: the west of the European part of the USSR (Russia), the Volga region and West Siberia. The high species richness and originality of the soil fauna in the forest-steppe, its high resistance to natural and anthropogenic influences were shown. At the end, the review indicates some promising directions for soil fauna research in the Russian forest-steppe.

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