scholarly journals New association of weed vegetation in the Southern Ural

2019 ◽  
Vol 8 (4) ◽  
pp. 97-103
Author(s):  
Gulnaz Rimovna Khasanova ◽  
Sergey Maratovich Yamalov ◽  
Maria Vladimirovna Lebedeva ◽  
Yaroslav Mikhailovich Golovanov
Keyword(s):  
Steppe Zone ◽  
Conyza Canadensis ◽  
Orenburg Region ◽  
The North ◽  
Weed Communities ◽  
System Of Units ◽  
Floristic Classification ◽  
New Association ◽  
First Time

A geobotanic survey was carried out and the diversity of weed communities of the steppe zone of the Orenburg and Ilek administrative Districts of the Orenburg Region was revealed. As a result of the synthaxonomic analysis, the studied communities are assigned to the new association Amarantho blitoidis-Lactucetum tataricae ass. nov. hoc loco in the system of units of ecological-floristic classification of Eurasia vegetation. The association united weed communities of spring wheat, sunflower, less often - rye, barley, corn and sorghum, emerging mainly on well-drained swollen soils in the flood of the Ural River. The cenophlora is characterized by the presence of bondate and optional psammophytes - Chondrilla brevirostris , Helichrysum arenarium , Ceratocarpus arenarius , etc. The communities of the association occupy an extreme position on gradients of aridity and moisturization factors among other weed vegetation communities of the Southern Ural. The North American alien species Euphorbia glyptosperma Engelm has been discovered for the first time in the Orenburg Region (subgenus Chamaesyce Raf., section Anisophyllum Roep.). Currently this species is expanding its range from the south of the Russian Federation. Other alien plants have been noted as part of the communities: Amaranthus blitoides S. Wats., A. retroflexus L., Conyza canadensis (L.) Cronq., Xanthium album (Widder) Scholz et Sucopp.

scholarly journals To the distribution of noctuid moths (Lepidoptera: Noctuoidea) in the North-Western Pryazovia and adjacent regions of the steppe zone of Ukraine

2019 ◽  
Vol 27 (2) ◽  
pp. 23-33
Author(s):  
S. I. Suchkov ◽  
Yu. M. Geryak
Keyword(s):  
Rare Species ◽  
New Records ◽  
Steppe Zone ◽  
The North ◽  
Clostera Anastomosis ◽  
New Localities ◽  
First Time ◽  
North Western

The new records of 94 species of noctuid moths (Noctuoidea) in the North-Western Pryazovia and adjacent regions of the steppe zone of Ukraine are presented. One species Dysgonia rogenhoferi is recorded in Ukraine for the first time. Founds of species Eublemma amasina and Caradrina expansa are the second in our country. One species (Eublemma amasina) in Dnipro Region, 2 (Ptilophora plumigera and Schargacucullia gozmanyi) — in Donetsk Region, 2 (Cerura erminea and Apamea unanimus) — in Odesa Region, 5 (Acantholipes regularis, Dysgonia rogenhoferi, Caradrina expansa, Luperina rubella, and Aporophyla canescens) — in Zaporizhzhya Region, 7 (Clostera anastomosis, Zanclognatha lunalis, Polyphaenis sericata, Protarchanara brevilinea, Aporophyla canescens, Lacanobia praedita, and Dichagyris forcipula) — in Kherson Region, and 10 (Clostera anastomosis, Cucullia argentina, Meganephria bimaculosa, Hoplodrina blanda, Sedina buettneri, Tiliacea aurago, Cosmia diffinis, Cosmia affinis, Aporophyla lutulenta and Xestia trifida) — in Mykolaiv Region are registered for the first time. In addition, new localities of a number of little-known, local and rare species in Ukraine or in its separate regions were discovered.

scholarly journals Weed communities with alien plant species on the south-east area of the Orenburg Region

2021 ◽  
Vol 10 (3) ◽  
pp. 122-128
Author(s):  
Gulnaz Rimovna Khasanova ◽  
Sergey Maratovich Yamalov ◽  
Mikhail Nikolaevich Drap ◽  
Anvar Khafizovich Shakirzyanov
Keyword(s):  
Alien Species ◽  
Steppe Zone ◽  
Weed Species ◽  
Convolvulus Arvensis ◽  
Southeastern Part ◽  
Alien Plant ◽  
Perennial Weed ◽  
Orenburg Region ◽  
Weed Communities ◽  
Acroptilon Repens

The presence of agrocoenotic factors constantly acting on segmental (weed-field) communities leads to a high level of community invasion - a potential opportunity to accept new species. In many cases, it is through synanthropic communities that invasions of alien species occur in the Urals, which cause significant damage to both agriculture and the entire economy of the region as a whole. The aim of investigation is to survey and identify the coenotic diversity of communities involving alien species in the steppe zone of the southeastern part of the Orenburg Region. The paper provides data on weed communities with the participation of Acroptilon repens , the Sisymbrium volgense and Artemisia sieversiana . Communities were identified in spring wheat crops in the southeast of the Orenburg Region (Dombarovsky and Svetlinsky administrative districts). Communities develop on dark chestnut soils in arid conditions of the steppe zone. As a result of a synaxonomic analysis, communities were classified into three new variants of the association Lactucetum tataricae Rudakov in Mirkin et al. 1985 previously described in the Republic of Bashkortostan. Perennial weed species prevail in the agrobiological spectrum of the coenoflora nucleus of the studied segetal communities, the share of which is 70%. The most active of them are root-sprung perennials, which are found with high constancy and often dominate: Acroptilon repens , Fallopia convolvulus , Cirsium arvense , Convolvulus arvensis , Lactuca tatarica , Euphorbia virgata . Using the indirect ordination method (DCA), the features of ecological differentiation of communities are demonstrated. The studied phytocoenoses are associated with the driest habitats with poor soils.

scholarly journals NEW DATA ABOUT THE FAUNА OF ORIBATID MITES (ORIBATIDA) OF THE NORTH CAUCASUS

2018 ◽  
Vol 13 (2) ◽  
pp. 52-63
Author(s):  
Umukusum Ya. Shtanchaeva ◽  
Luis S. Subias ◽  
Aleksandr M. Kremenitsa
Keyword(s):  
Species Diversity ◽  
Salt Marshes ◽  
Steppe Zone ◽  
Oribatid Mites ◽  
North Caucasus ◽  
Forest Zone ◽  
Subalpine Meadows ◽  
Number Of Species ◽  
The North ◽  
First Time

The purpose of this work is to publish new data on the species composition of oribatid mites in the North Caucasus, which will make possible to clarify the destribution of the oribatids of the world fauna region. The material was collected in 2003-2009, according to generally accepted methods, in 23 habitats in the territory of Adygea, Dagestan, Kabardino-Balkaria and the Krasnodar Territory in various altitudinal levels: in alpine and subalpine meadows, in mountain forests of various types (birch, pine, beech or mixed), mesophytic meadows in the forest zone, in xerophytic shrubs and mountain steppes, floodplain meadows and salt marshes of the semidesert biotopes of the lowland zone. Results. There were found 349 species of the oribatid mites from 158 genera and subgenera belonging to 62 families. Forest habitats are characterized by the greatest species diversity, there are found 232 species of oribatids. In the alpine and subalpine meadows 158 species are noted, 71 species are found in the mountain steppe zone, 47 species in the salt marshes of the semidesert zone, and 7 species in the floodplain meadows. For the first time in the Caucasian region one genus Novosuctobelba Hammer, 1977 and 29 species of the oribatid mites are registered, founded earlier only in Japan, China, Somalia and some countries of the Mediterranean. There are 14 new taxa for science: 12 species and 2 subspecies. Conclusion. In 23 biotopes of 18 geographical points of the Northern Caucasus 349 species of the oribatid mites from 158 genera and subgenus and 62 families were found. The number of species found in the biotopes of different altitude zones corresponds to the basic patterns of distribution of oribatids in mountain ecosystems: the biotopes of the forest zone are characterized by the greatest species diversity, the number of species in the soils of alpine and subalpine meadows and biotopes of the mountain-steppe zone is somewhat lower, the smallest number of species is found in the semidesert zone. For the first time in the Caucasian region one genus and 29 species of oribatid have been recorded, which allows to expand the areology of some species of the oribatid mites. There are 14 new taxa for science.

Relic steppes of the order Helictotrichetalia schelliani Hilbig 2000 of the Omolon valley (Western Chukotka)

2011 ◽  
pp. 17-32
Author(s):  
V. B. Dokuchayeva ◽  
N. V. Sinelnikova
Keyword(s):  
North East ◽  
The North ◽  
Steppe Communities ◽  
New Association

Classification of relic steppe communities in the Omolon valley (Western Chukotka) has been performed according to the Braun-Blanquet approach. All communities represent 3 associations, 3 subassociations, 3 variants and 15 communities of class Сleistogenetea squarrosae Mirk. et al. 1986, order Helictotrichetalia schelliani Hilbig 2000 and alliance Elytrigio jacutori—Dracocephalion palmati Sinelnikova 2009. The new association — Lychnido sibiricae—Festucetum kolymensis ass. nov. and two new subassociations — Thymo diversifolii—Elytrigietum jacutori festucetosum kolymensis subass. nov. and Dracocephalo palmati—Saxifragetum omolojensis eremogonetosum tschuktschori subass. nov. are described. Peculiarities of distribution of class Сleistogenetea squarrosae in the North-East of Russia are discussed.

scholarly journals Food preferences of the great ramshorn Planorbarius corneus (Linnaeus, 1758) allospecies (Mollusca: Gastropoda: Planorbidae) from the Ukrainian river system

2021 ◽  
Vol 29 (4) ◽  
Author(s):  
Yuliia Babych ◽  
Olena Uvayeva ◽  
Agnessa Stadnychenko
Keyword(s):  
Food Preferences ◽  
River System ◽  
Steppe Zone ◽  
Danube River ◽  
Left Bank ◽  
Planorbarius Corneus ◽  
The North ◽  
North Eastern ◽  
First Time

The “western” and “eastern” allospecies of the superspecies complex Planorbarius corneus (Linnaeus, 1758) sensu lato includes the most widespread and abundant gastropods in the Ukrainian aquatic fauna. The range of the “western” allospecies includes the north and central parts of Right Bank Ukraine, while the range of the “eastern” allospecies comprises the north-eastern and eastern parts of Left Bank Ukraine, and the extreme south (as far as the Danube River) of the Ukrainian steppe zone. The food preferences of these snails were established for the first time. Such data may provide the basis for studying the role of both allospecies in the food webs of the river systems of Ukraine.

Characterization and evolution of spearfishing in Madeira archipelago, Eastern Atlantic

2020 ◽  
Vol 33 ◽  
pp. 15
Author(s):  
Roi Martínez-Escauriaza ◽  
Claudio Vieira ◽  
Lídia Gouveia ◽  
Nuno Gouveia ◽  
Margarida Hermida
Keyword(s):  
Fish Species ◽  
Young Men ◽  
Coastal Areas ◽  
Teleost Fishes ◽  
The North ◽  
Southeast Coast ◽  
Madeira Archipelago ◽  
First Time

Data obtained from licenses of spearfishers and surveys conducted in 2004 and 2017 allowed for the analysis, for the first time, of the practice of spearfishing in the Madeira archipelago. Only a small percentage of the population practices spearfishing, mostly local young men. Most of them practice the activity with a partner throughout most of the year and along most of the island's coastal areas, although preferentially along the North and Southeast coast. Results show how, in recent years, despite the population of spearfishers decreasing, the abundance in the annual catch potentially increased, probably due to the higher investment of time in this activity. It has been observed that many fishers complement their catches with manual collecting of invertebrates. Overall, 40 teleost fishes and also 4 crustaceans and 8 molluscs were identified. The most frequently captured fish species were parrotfish and white seabream, while limpets were the most collected invertebrates in both selected periods.

Analysis of professional incidence of workers of the mining industry of the Orenburg region

2020 ◽  
pp. 650-650
Author(s):  
B. L. Kolesnikov ◽  
E. M. Egorova ◽  
O. S. Redina
Keyword(s):  
Occupational Diseases ◽  
Mining Industry ◽  
Orenburg Region ◽  
Clinical Hospital ◽  
Regional Center ◽  
Mining Enterprise ◽  
First Time

The analysis for the first time of the established occupational diseases to employees of the mining enterprise of the Orenburg region in the regional center of professional pathology of Orenburg Regional Clinical Hospital during 2016-2018 is carried out.

Аquatic and helophytic vegetation of the Yamozero Lake (The Komi Republic)

2011 ◽  
pp. 101-116 ◽  
Author(s):  
B. Yu. Teteryuk
Keyword(s):  
Eastern Europe ◽  
Plant Communities ◽  
Rare Species ◽  
Komi Republic ◽  
European Part ◽  
Regional Level ◽  
North East ◽  
The North ◽  
European Part Of Russia ◽  
Floristic Classification

The results of a sintaxonomical study of plant communities of the Yamozero lake (the North-East of the European part of Russia) are presented. The diversity of the aquatic and helophytic vegetation of the Yamozero lake consists of 16 associations and 2 communities of 6 unions, 4 orders and 2 classes of the floristic classification: Potamogetonetea (7 associations, 2 communities), Phragmito-Magnocaricetea (9 associations). Many of described associations are widely distributed in the Central and the Eastern Europe. Some associations have the boundaries of their ranges. Some communities include 2 rare species of regional level: Isoetes setacea and Sagittaria natans.

Sphagnum mosses (Sphagnaceae, Bryophyta) of mires Chefandzar and Masota in North Ossetia (Caucasus)

2018 ◽  
Vol 52 (2) ◽  
pp. 455-462 ◽  
Author(s):  
G. Ya. Doroshina ◽  
I. A. Nikolajev
Keyword(s):  
Plant Communities ◽  
The Other ◽  
North Caucasus ◽  
Sphagnum Mosses ◽  
Greater Caucasus ◽  
The North ◽  
First Time ◽  
North Ossetia

Sphagnum mires on the Greater Caucasus are rare, characterized by the presence of relict plant communities of glacial age and are in a stage of degradation. The study of Sphagnum of Chefandzar and Masota mires is carried out for the first time. Seven species of Sphagnum are recorded. Their distribution and frequency within the North Caucasus are analyzed. Sphagnum contortum, S. platyphyllum, S. russowii, S. squarrosum are recorded for the first time for the study area and for the flora of North Ossetia. The other mosses found in the study area are listed.

Materials to the lichen flora of Samurskiy Ridge (high mountainous Dagestan)

2018 ◽  
Vol 52 (2) ◽  
pp. 397-406
Author(s):  
A. B. Ismailov ◽  
G. P. Urbanavichus
Keyword(s):  
North Caucasus ◽  
Lichenicolous Fungi ◽  
Greater Caucasus ◽  
Altitudinal Range ◽  
The North ◽  
New Findings ◽  
Mountainous Landscapes ◽  
First Time ◽  
Lichen Flora

The lichens and lichenicolous fungi of high mountainous landscapes of Samurskiy Ridge were studied in altitudinal range 2400–3770 m a. s. l. for the first time and 112 species are recorded. Among them 33 species, 10 genera (Arthrorhaphis, Baeomyces, Calvitimela, Epilichen, Lambiella, Psorinia, Rufoplaca, Sagedia, Sporastatia, Tremolecia) and 4 families (Anamylopsoraceae, Arthrorhaphidaceae, Baeomycetaceae, Hymeneliaceae) are new for Dagestan, six species (Buellia uberior, Carbonea atronivea, Lecanora atrosulphurea, Lecidea fuliginosa, L. swartzioidea, Rhizoplaca subdiscrepans) are reported for the first time for the Greater Caucasus and two species (Acarospora subpruinata and Rhizocarpon postumum) — for the North Caucasus. Most of the new findings were collected from 3500–3770 m a. s. l.

Sign in / Sign up

Export Citation Format

Share Document