GEOBOTANICAL DESCRIPTIONS OF STEPPE COMMUNITIES WITH FEATHER GRASS IN THE TIGIREKSKY RESERVE IN 2016

2017 ◽  
pp. 5-14
Author(s):  
N.I. Zolotukhin
Keyword(s):  
Steppe Communities ◽  
Feather Grass

scholarly journals Petrophytic-steppe communities of the Mogutova Mountain (Zhiguli Hills)

2016 ◽  
Vol 5 (3) ◽  
pp. 48-53
Author(s):  
Larisa Valerievna Sidyakina ◽  
Vladimir Mikhailovich Vasjukov ◽  
Sergey Vladimirovich Saksonov
Keyword(s):  
Russian Federation ◽  
Endemic Species ◽  
National Park ◽  
The North ◽  
Steppe Communities ◽  
Feather Grass ◽  
The Russian Federation ◽  
Pulsatilla Patens ◽  
Steep Slopes

The Mogutova Mountain - domal erosive ostanets in the north of the Zhigulyovsk hill, lies in national park Samara Luka. Communities petrophytic steppes are formed on calcareous exposures of steep slopes of the western, southern and east expositions of the mountain Mogutova. Petrophytic-steppe communities on a slope of east exposition are described - petrophytic-forbs-feather grass steppe ( Stipa capillata + Stipa pennata + Herbae stepposae ), on a slope of west exposition - petrophytic-sunrose-feather grass steppe ( Stipa pennata + Helianthemum nummularium ), on a slope of south exposition - petrophytic-thyme-sedge-feather grass steppe ( Stipa pulcherrima + Carex pediformis + Thymus zheguliensis ). In the studied communities three narrow-local of endemic species of the Zhigulyovsk hill grows: Euphorbia zhiguliensis, Gypsophila juzepczukii, Thymus zheguliensis and three of subendemic species grows: Festuca wolgensis s.str. , Tanacetum sclerophyllum (endemics of Central Volga area), Koeleria sclerophylla (endemic of Central Volga area and South Ural); the relict element of flora is presented by three species: Alyssum lenense, Clausia aprica, Helianthemum nummularium . Five species are included in the Red book of the Russian Federation: Astragalus zingeri, Euphorbia zhiguliensis, Koeleria sclerophylla, Stipa pennata, Thymus zheguliensis ; sixteen species are included in the Red book of the Samara region: Adonanthe vernalis, Alyssum lenense, Astragalus zingeri, Clausia aprica, Cotoneaster laxiflorus, Euphorbia zhiguliensis, Festuca wolgensis, Gypsophila juzepczukii, Helianthemum nummularium, Koeleria sclerophylla, Onosma volgensis, Pulsatilla patens, Scabiosa isetensis, Stipa pennata, Tanacetum sclerophyllum, Thymus zheguliensis. The most widespread plants of petrophytic steppes of the Mogutova Mountain: Astragalus zingeri, Carex pediformis, Echinops ruthenicus, Galium hexanarium, Gypsophila juzepczukii, Helictotrichon desertorum, Jurinea ledebourii, Onosma volgensis, Psephellus carbonatus, Stipa pennata, Tanacetum sclerophyllum, Thesium ramosum, Thymus zheguliensis .

scholarly journals About some discussion issues on steppe typology and florocenotypes related to them in vegetation of South Siberia

2021 ◽  
Vol 20 (1) ◽  
pp. 317-322
Author(s):  
B. B. Namzalov
Keyword(s):  
Central Asia ◽  
Southern Siberia ◽  
South Siberia ◽  
Steppe Communities ◽  
Feather Grass ◽  
Southeastern Altai

The phytogeographic ecotonicity of Southern Siberia (SS) is reflected in the features of its flora and vegetation, in particular the steppes. The recognition of only a floristic criterion in the typology of vegetation impoverishestheir real cenotic diversity. It is necessary to accept the florocenogenetic concept with fractional landscape-biomorphological types – florocoenotypes in the spirit of P. N. Ovchinnikov. By the genesis, the most ancient are the zonal sod grass(feather grass) steppes. However, the initial should be considered the Achnatherums and, in general, the communities ofshort-awned great-feather grass (Tsvelev, 1977), which formed steppe groups in the Tertiary savannoid complexes. Theformation of mountain cereal steppes – with fescue, oat, bluegrass, etc. took place synchronously with cryoxerophytization, starting from the Oligocene. The originality of the SS steppes is given by some rare steppe communities, which arecoenogenetically close to the tragacanth, friganoid, shiblyak and ephemeral steppes of mountainous Central Asia. Theseare distinctive relict steppes in the belt of the Altai, Sayan and Transbaikal mountains, which include communities of viviparous grassland steppes in the foothills of Western Altai, tragacanth-oxytropis steppes of southeastern Altai, and communities of the Tuvan and Daurian shiblyak, as well as groups of Altai friganoids with Ziziphora clinopodioides, Thymusaltaicus and Allium pallasii.

Petrophytic feather-grass and thyme steppes in the south-east of the Kursk Region (within the limits of the Oskol river basin)

2009 ◽  
pp. 49-62
Author(s):  
A. V. Poluyanov
Keyword(s):  
River Basin ◽  
The South ◽  
Steppe Species ◽  
New Associations ◽  
Typical Steppe ◽  
Steppe Communities ◽  
Steppe Plants ◽  
Feather Grass ◽  
Kursk Region ◽  
Chalk Outcrops

The paper deals with 2 new associations, represen­ting the petrophytic steppe communities described from the Oskol river basin (Kursk Region), Gypsophilo altissimae—Stipetum capillatae ass. nov. and Carici humilis—Thymetum calcarei ass. nov. First asso­ciation is included into the alliance Astragalo-Stipion Knapp 1944. The communities of this alliance are represented by the most xerophytic variant of the feather-grass steppes of Kursk Region and they are characterized by the combination of obligatory calci­philous and typical steppe plants. Second association is included into the alliance Centaureo carbonatae—Koelerion talievii Romaschenko, Didukh et Solomakha 1996 of the order Festucetalia valesiacae Br.-Bl. et Tx. 1943. The alliance comprises petrophytic thyme steppe communities on chalk outcrops (mostly in the southern slopes) and on hill’s tops. The commu­nities are characterized by the dominance of obligatory calciphilous and petrophilous steppe species. The communities of this alliance are widely spread in the Oskol River basin in the southern part of the Middle-Russian Upland.

scholarly journals The genus Stipa (Poaceae) in the Altai Krai: taxonomy and distribution

Turczaninowia ◽  
2020 ◽  
Vol 23 (4) ◽  
pp. 32-49
Author(s):  
Polina D. Gudkova ◽  
Andrey Yu. Korolyuk ◽  
Daria D. Ryzhakova ◽  
Elisaveta A. Kriuchkova ◽  
Marchin Nobis
Keyword(s):  
New Record ◽  
Western Siberia ◽  
Taxonomic Revision ◽  
Grass Species ◽  
Southeastern Part ◽  
The Past ◽  
Steppe Communities ◽  
Feather Grass ◽  
High Conservation ◽  
Herbarium Collections

Over the past two centuries, Altai krai, located in the southeastern part of Western Siberia, has undergone significant transformation as a result of the virgin lands development. The vast even territories of the krai, formerly occupied by steppes dominated by the feather grass, are now almost completely plowed up. Many types of steppe communities, as well as plant species associated with them, have become rare. This paper presents the results of the taxonomic revision of the genus Stipa. The genus has a high conservation value and seven of twelve feather grass species growing in the studied area are listed in the “Red Book of Altai Krai”. Based on the revision of the herbarium collections stored in ALTB, LE, NS, NSK, TK and the authors’ collections, a checklist of the genus Stipa in Altai krai and an illustrated identification key were compiled. The synopsis for each species contains a nomenclature name, a brief description, a note on taxonomy, flowering period and typical habitats. In addition, it presents the distribution of species in the territory of the krai in the form of an administrative districts list and point maps. A new record of S. sareptana species, new for Altai krai and Western Siberia, was found while the presence of S. baicalensis was not confirmed. Additionally, lectotype of S. praecapillata is also here designated.

The comparative ecologo-phytocoenotical positions of the two feather-grass species (Stipa pennata L. and S. tirsa Stev.) in the plant communities of Yamskaya Steppe (Belgorod region)

2011 ◽  
pp. 29-54
Author(s):  
B. K. Gannibal
Keyword(s):  
Plant Community ◽  
Plant Communities ◽  
Grass Species ◽  
Steppe Communities ◽  
Protected Territory ◽  
Feather Grass

There is a general phytocoenotic question — why the species similar taxonomically and ecologically can co-exist within a plant community? The paper deals with two of such species — Stipa pennata L. and S. tirsa Stev., that previously were considered by plant taxonomists as one species. They are reputed to be the most mesophytic feather-grasses, although there are a lot of contradictory opinions about their physiology and ecology. In 1920s and 30s two well-known Russian geobotanists B. Keller and V. Aljekhin conflicted on the problem. In our case both species co-exist in the steppe communities of the protected territory (zapovednik “Belogorie”). The phytocoenotical role of feather-grassesvaries in the different ecotopes. The phytocoenotical roles S. pennata and S. tirsa are very similar in the plant communities growing on the cold slopes. As for the warm sites, the participation of S. pennata in the communities is the same, whereas a presence of S. tirsa is considerably decreased. Each feather-grass de­monstrates a high correlation with specific grass species of communities. The obtained results show the clear phytocoenotic distinctions between two species.

scholarly journals Ecological-floristic characteristics of the specially protected natural area «Kostinskie Loga» (Samara Region)

2020 ◽  
Vol 9 (4) ◽  
pp. 87-92
Author(s):  
Oksana Anatolyevna Kuzovenko ◽  
Yana Anatolyevna Samotueva
Keyword(s):  
Steppe Zone ◽  
Research Area ◽  
Natural Area ◽  
Pasture Digression ◽  
Central Russia ◽  
Steppe Communities ◽  
Feather Grass ◽  
Protected Natural Area ◽  
Synanthropization Index ◽  
Floristic Characteristics

The paper considers ecological-floristic characteristics of the specially protected natural area Kostinskie Loga, located in the southern part of the Samara Region (Bolshechernigovsky and Bolsheglushitsky Districts). The research area belongs to the subzone of fescue-feather grass steppes. The flora is represented by 240 species of vascular plants belonging to 160 genera, 49 families, 2 classes and 1 division. Ecological-cenotic analysis was used to assess the ecosystem diversity of the nature sanctuary. The leading groups for phytocenotic affinity are identified: steppe (65 species; 27,1%) and meadow-steppe (54 species; 22,5%), which indicates a good preservation of steppe biomes and demonstrates landscape features of the nature sanctuary. The low value of the synanthropization index (15,8%) reflects a moderate level of anthropogenic load. The adventive component of the flora is represented by 30 plant species (12,5%), among which the degree of naturalization is dominated by epecophytes (10,8%), the time of introduction by neophytes (6,7%), the methods of introduction are dominated by xenophytes (27 species; 11,3%). The analysis of flora identified 6 species included in the Black book of Central Russia (Acer negundo, Atriplex tatarica, Cyclachaena xanthiifolia, Hordeum jubatum, Elaeagnus angustifolia, Xanthium albinum). The introduction of alien plants into natural communities occurs due to pasture digression in areas bordering the territory of the nature sanctuary. In general, the degree of anthropogenic transformation of the flora in most of the territory is expressed slightly, the vegetation cover retains natural features inherent in the steppe zone. A high degree of preservation of steppe communities with a significant participation of rare representatives of flora (14,6%) creates prerequisites for the organization of one of the steppe reserve sections of the Samara Region.

HERBAL ECOSYSTEMS IN AGROLANDSCAPES VALUYKI DISTRICT OF SOUTH RUSSIAN PROVINCE STEPPE ZONE OF CENTRAL BLACK EARTH REGION OF RUSSIA

2020 ◽  
Author(s):  
Elena Yakovleva
Keyword(s):  
Steppe Zone ◽  
The South ◽  
Feather Grass ◽  
Motley Grass

The characteristic of the spread of herbal ecosystems in the agrolandscapes of the Valui district of the South Russian province of the steppe zone of the Central Black Earth of Russia is given. Tramped pastures (with narrow-leaved bluegrass, sheep fescue, motley grass) predominate on the site of the indigenous (rich-motley grass, sheep fescue, feather-grass) Donetsk and middle-Don steppes.

First archaeological investigations of barrows in the Bačka region and the question of the Eneolithic/Early Bronze Age barrows in Vojvodina

2020 ◽  
Vol 95 (2) ◽  
pp. 350-375
Author(s):  
Jovan Koledin ◽  
Urszula Bugaj ◽  
Paweł Jarosz ◽  
Mario Novak ◽  
Marcin M. Przybyła ◽  
...  
Keyword(s):  
Bronze Age ◽  
Early Bronze Age ◽  
Western Region ◽  
Radiocarbon Dates ◽  
Funeral Ritual ◽  
Science Centre ◽  
National Science ◽  
Steppe Communities ◽  
Burial Mounds ◽  
Two Stages

AbstractIn various prehistoric periods, the territory of Vojvodina became the target of the migration of steppe communities with eastern origins. The oldest of these movements are dated to the late Eneolithic and the beginning of the Early Bronze Age. There are at least two stages among them: I – dated to the end of the fourth millennium BC / beginning of the third millennium BC and II – dated from 3000 to 2600 BC and combined with the communities of the classical phase of the Yamnaya culture. The data documenting these processes have been relatively poor so far – in comparison with the neighboring regions of Bulgaria, Romania and Hungary. A big drawback was the small number of systematically excavated mounds, providing comprehensive data on the funeral ritual of steppe communities. This poor database has been slightly enriched as a result of the design of the National Science Centre (Cracow, Poland) entitled “Danubian route of the Yamnaya culture”. Its effect was to examine the first two barrows located on the territory of Bačka – the western region of Vojvodina. Currently, these burial mounds are the westernmost points on the map of the cemeteries of the Yamnaya culture complex. Radiocarbon dates obtained for new finds, as well as for archival materials, allow specifying two stages of use of cemeteries of Yamnaya culture: I – around 3000–2900 BC and II – around 2800–2600 BC. Among the finds from Banat, there were also few materials coming probably from the older period, corresponding to the classical phase of Baden – Coţofeni I–II. The enigmatic nature of these discoveries, however, does not allow to specify their dating as well as cultural dependencies.

scholarly journals Rare cenoflora formation patterns in the Cis-Urals steppe communities

2021 ◽  
Vol 817 (1) ◽  
pp. 012056
Author(s):  
M V Lebedeva ◽  
S M Yamalov ◽  
M V Petrova
Keyword(s):  
Steppe Communities
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