Dryas fell-fields in the East of the European part of the Russian Arctic

2014 ◽  
pp. 24-62 ◽  
Author(s):  
O. V. Lavrinenko ◽  
N. V. Matveyeva ◽  
I. A. Lavrinenko
Keyword(s):  
Abundant Species ◽  
European Part ◽  
Russian Arctic ◽  
Hylocomium Splendens ◽  
East European ◽  
Empetrum Hermaphroditum ◽  
European North ◽  
Composition And Structure ◽  
Dryas Octopetala ◽  
Salix Glauca

Communities with Dryas octopetala dominance are rather rare in the East European North. Some of these occupying zonal positions on watersheds within the typical tundra subzone are described in the tradition of the dominant approach at the Vangurey Upland in the northern part of Bolshezemelskaya tundra (Andreev, 1932), the highest moraine elevations in the northern parts of Malozemelskaya tundra (Dedov, 2006) and at the Kolguev Isl. (Bogdanovskaya-Gienef, 1938; Smirnova, 1938). Besides Dryas octopetala abundant species in these stands are willows Salix glauca, S. hastata, S. polaris, S. reticulata, sedge Carex arctisibirica and mesophyte forbs as well bryophytes Aulacomnium turgidum, Hylocomium splendens, Tomentypnum nitens and Ptilidium ciliare in ground layer. The diagnostic species of Loiseleurio-Vaccinietea Eggler ex Schubert 1960 Arctous alpina, Empetrum hermaphroditum and Vaccinium vitis-idaea are also common. Zonal communities of similar composition and structure, but dominating by Dryas punctata, were described on the Taymyr Peninsula as Carici arctisibiricae–Hylocomietum alaskani Matveyeva 1994 (Matveyeva, 1994) and on Wrangel Isl. as Carici lugentis–Hylocomietum alaskani (Sekretareva, 1998; Kholod, 2007) for which the new alliance Caricion lungentis all. prov., within the order Salicetalia polaris Hartmann 1980 has been suggested (Kholod, 2007). The revision of similar syntaxa in the East European North is in our plans.

Molecular evidence reveals introduced populations of Eiseniella tetraedra (Savigny, 1826) (Annelida, Lumbricidae) with European origins from protected freshwater ecosystems of the southern Alborz Mountains

2021 ◽  
Vol 72 (1) ◽  
pp. 44
Author(s):  
M. Javidkar ◽  
A. Abdoli ◽  
F. Ahmadzadeh ◽  
Z. Nahavandi ◽  
M. Yari
Keyword(s):  
Abundant Species ◽  
Freshwater Ecosystems ◽  
Coi Gene ◽  
Molecular Evidence ◽  
Invertebrate Fauna ◽  
Phylogeographic Pattern ◽  
European North ◽  
Introduced Populations ◽  
Exotic Earthworms ◽  
Significant Attention

The presence of exotic earthworms has recently become a major concern and drawn significant attention to their potential effects on ecosystems and native invertebrate fauna. Although the occurrence of invasive annelids has been well recorded, their settlement in Iran is poorly documented. To investigate the biodiversity of aquatic Oligochaeta and to assess the presence of possible exotic species, DNA barcoding using the mitochondrial cytochrome c oxidase subunit 1 (COI) gene was conducted in two major protected rivers (Jajroud, Karaj) of the southern Alborz Mountains. As a result, new lineages of Tubifex, Haplotaxis and Lumbriculus were identified from Iran. Moreover, a semiaquatic lumbricid species, Eiseniella tetraedra, was unexpectedly found to be the most abundant species. The analyses showed the presence of six divergent lineages of E. tetraedra occurring in individual rivers. The presence of identical haplotypes shared between European, North American, Australian and Iranian localities, the sympatric accumulation of several distinct intraspecific lineages in the same rivers and the lack of a phylogeographic pattern reinforce the hypothesis of a possible inadvertent anthropogenic introduction. The relative abundance of lineages indicates a significant decline in the abundance of native oligochaetes, which may be linked to the preponderance of recently introduced European populations of E. tetraedra, probably mediated through human activities.

scholarly journals THE IMPACT OF GLOBAL CLIMATE CHANGE ON THE INCIDENCE OF TICK-BORNE ENCEPHALITIS IN THE EUROPEAN PART OF THE RUSSIAN ARCTIC

2019 ◽  
Vol 8 (4) ◽  
pp. 551
Author(s):  
N. K. Tokarevich ◽  
A. A. Tronin ◽  
B. R. Gnativ ◽  
R. V. Buzinov ◽  
O. V. Sokolova ◽  
...  
Keyword(s):  
Climate Change ◽  
Global Climate Change ◽  
Global Climate ◽  
European Part ◽  
Russian Arctic ◽  
Tick Borne Encephalitis ◽  
The Impact

.

scholarly journals Study of response of spruce progenies from different geographical origins in «genotype-environment» system in the European North of Russia

2017 ◽  
Author(s):  
Е.Н. Наквасина ◽  
Н.А. Прожерина ◽  
Н.А. Демина
Keyword(s):  
Growth Conditions ◽  
Northern Taiga ◽  
East European Plain ◽  
Leningrad Region ◽  
Mixed Forests ◽  
East European ◽  
Siberian Spruce ◽  
European North ◽  
Group I ◽  
Adaptive Variability

Географические культуры позволяют изучать реакцию потомства на условия произрастания в системе «генотип-среда», что является одним из важнейших в селекции происхождений и служит основой для регламентации перебросок се- мян для лесовосстановления. Проведена оценка адаптационной изменчивости 22 потомств ели, представленных елью европейской, сибирской и формами их интрогрессивных гибридов, исходные насаждения которых произрастают на территории Восточно-европейской равнины от северной подзоны тайги до зоны смешанных лесов. Все климатипы выращиваются в географических культурах Ев- ропейского Севера России (Архангельская, Вологодская области и Республика Коми), созданных по единой методике 1977 г. Показатели сохранности и роста (диаметр, высота) выражали в единицах стандартного отклонения и распределяли на 4 группы: группа I – (ниже –0,5); группа II – (–0,5–0); группа III – (0 – +0,5); группа IV – (выше +0,5). Выделены климатипы, отличающиеся лучшими сохранностью, высотой и диаметром. По комплексу трех показателей в группы III и IV – лучшие по адаптационной изменчивости – входят представители двух видов ели и их гибридных форм. Они представлены происхождениями из средней и южной подзон тайги и зоны смешанных лесов. К ним относятся корткеросский и сосногорский климатипы ели сибирской (№ 25, 26) и потомство ели европей- ской из Ленинградской области (тосненский климатип – № 5). На основании комплексной оценки адаптационной изменчивости ели на территории Восточно- европейской равнины выделены две обособленные территории лучших по производственным показателям происхождений, связанных с видами ели, что необходимо учитывать при селекционных работах. Provenance tests allow to study the tree offspring reaction to the growth conditions in the «genotype-environment» system. This is the very important for forest selection and serves as a basis for regulating of seeds transfer for reforestation. The adaptation variability of 22 spruce provenances represented by Norway and Siberian spruce and the forms of their introgressive hybrids was evaluated. Spruce origins grow on the territory of the East European Plain from the subzone of the northern taiga to the zone of mixed forests. All provenances are grown in the provenance tests in the European North of Russia (Arkhangelsk region, Vologda region and Komi Republic) were planted according to a uniform methodology in 1977. The parameters of survival and growth (diameter, height) were expressed in units of standard deviation and divided into 4 groups: group I – (below –0,5); Group II – (–0,5–0); Group III – (0–+0,5); Group IV – (above +0,5). Provenances with the best survival, height and diameter are distinguished. Groups III and IV are the best in adaptive variability by the complex of three studied parameters and include two species of spruce and their hybrid forms. They are represented by origins from the middle and southern subzones of the taiga and the zone of mixed forests. These include the Siberian spruce origins from Kortkeros and Sosnogorsk (No 25, 26) and the Norway spruce origin from the Leningrad region (Tosno provenance No 5). Two isolated areas of the best for production indicators of provenances associated with spruce species on the basis of a comprehensive assessment of the adaptive variability of spruce in the East European Plain were identified. This should be taken into account in the forest breeding operations.

AGE-RELATED FEATURES OF THE RELATIONSHIP BETWEEN THE CONTENT OF VASCULAR ENDOTHELIAL GROWTH FACTOR AND INDICATORS OF LIPID METABOLISM AND EXTRACELLULAR MATRIX METABOLISM IN MEN IN THE EUROPEAN PART OF THE RUSSIAN ARCTIC

2020 ◽  
pp. 450-458
Author(s):  
Л. Б. Ким ◽  
Г. С. Русских ◽  
А. Н. Путятина ◽  
О. Б. Цыпышева
Keyword(s):  
Extracellular Matrix ◽  
Vascular Endothelial Growth Factor ◽  
Growth Factor ◽  
European Part ◽  
The Arctic ◽  
Vascular Endothelial ◽  
Russian Arctic ◽  
Apo B ◽  
Matrix Metabolism ◽  
Endothelial Growth Factor

Изучено содержание васкулоэндотелиального фактора роста А ( VEGF-А ) в плазме крови и взаимосвязь его с показателями липидного обмена и метаболизма внеклеточного матрикса у мужчин трудоспособного возраста (19-69 лет), живущих и работающих в Европейской части Арктической зоны РФ (АЗРФ). Показано отсутствие возрастных различий в содержании VEGF-А . Проведенный корреляционный анализ в отдельных возрастных группах мужчин выявил значимые коэффициенты корреляции уровня VEGF-А с показателями липидного профиля (холестерин, ХС ЛПНП, Апо В , коэффициент атерогенности, отношение Апо В /Апо А 1) и метаболизма внеклеточного матрикса (ТИМП-4, ММП-2, ММП-3, ММП-9, гиалуронан, общий и пептидно-связанный гидроксипролин, гликозаминогликаны). Выявленные корреляции свидетельствуют о формировании определенной взаимосвязи ангиогенеза, атерогенеза и фиброза на конкретном отрезке жизни северян в АЗРФ. The content of vascular endothelial growth factor-A ( VEGF-A ) in blood plasma and its relationship with lipid and extracellular matrix metabolism in working-aged men (19-69 years), living and working in the European part of the Arctic zone of the Russian Federation (Russian Arctic), were studied. No age dependence of the plasma VEGF-A content was found. The correlation analysis, performed in different age groups, revealed significant associations of VEGF-A level with lipid parameters (CS, LDL-C, Apo B , atherogenicity coeffi cient, Apo B /Apo A 1 ratio) and extracellular matrix metabolism (blood TIMP-4, MMP-2, MMP-3, MMP-9, hyaluronan, total and peptide-bound hydroxyproline, glycosaminoglycans). The established correlations indicate the formation of relationships between angiogenesis, atherogenesis and fibrosis at a specific period of life of northerners in the Russian Arctic.

scholarly journals Biogeographic relationships between fungi and selected glacial relict plants

2014 ◽  
Vol 90 ◽  
pp. 1-230 ◽  
Author(s):  
Andrzej Chlebicki
Keyword(s):  
Host Plants ◽  
Vascular Plant ◽  
High Arctic ◽  
Peat Bogs ◽  
Betula Nana ◽  
Chamaedaphne Calyculata ◽  
Empetrum Hermaphroditum ◽  
Rubus Chamaemorus ◽  
Dryas Octopetala ◽  
Glacial Relict

The paper discusses fungi of 24 glacial relict plants: <em>Arenaria ciliata</em> L. subsp. <em>ciliata, Betula nana</em> L., <em>B. pubescens</em> Ehrh. subsp. carpatica (Willd.) Asch. &amp; Graebn., <em>B. pubescens</em> subsp. <em>czerepanovii</em> (N.I. Orlova) Hämet-Ahti, <em>C. magellanica</em> Lam. subsp. <em>irrigua</em> (Wahlenb.) Hiitonen, <em>Carex rupestris</em> All., <em>Cerastium alpinum</em> L., <em>C. cerastoides</em> (L.) Britton, <em>C. eriophorum</em> Kit. in Schult., <em>Chamaedaphne calyculata</em> (L.) Moench, <em>Dryas drummondii</em> Richards, <em>D. grandis</em> Juz., <em>D. integrifolia</em> Vahl., <em>D. octopetala</em> L. s.l., <em>Empetrum hermaphroditum</em> Hagerup, <em>E. nigrum</em> L., <em>Juncus trifidus</em> L., <em>Loiseleuria procumbens</em> (L.) Desv., <em>Pedicularis sudetica</em> Willd., <em>Rubus chamaemorus</em> L., <em>Salix herbacea</em> L., <em>S. lapponum</em> L., <em>S. reticulata</em> L., and <em>Saxifraga nivalis</em> L., The work is attempt at application of some fungi (<em>Ascomycota, Chytridiales, Ustilaginales, Uredinales</em>, mitosporic fungi) as guides in vascular plant phytogeography and explanation of the origin of selected glacial relict plants. Parasites and exclusive (specialized) for particular host plant species are the most important fungi for biogeographic analysis. A fungal markers method (FMM) was used. The fungi and host plants for the present study were collected in the mountains and peat bogs of Poland, the Czech Republic, Lithuania, Slovakia, Sweden, Russia and Ukraine. Also materials from Austria, Canada, France, Greenland, Korea, Spitsbergen, Switzerland and U.S.A. were examined. A total of 254 taxa of fungi were collected from 1329 localities investigated. Exclusive species of fungi for all examined host plants have been distinguished. Only <em>Dryas octopetala</em> s.l., <em>D. integrifolia, Empetrum nigrum, E. hermaphroditum, Chamaedaphne calyculata</em> and <em>Rubus chamaemorus</em> possess a number of exclusive species sufficient for analysis. In some cases it was possible to define the direction of migration of the host plants (<em>Betula nana, Juncus trifidus, Dryas octopetala</em> s.l.) on the basis of mycological data. For dryads the extremely High Arctic track is more important than the Middle Arctic or Low Arctic ones. The waves of migrants moved from the East via Spitsbergen to-wards Greenland. <em>Dryas octopetala</em> seems to have reached the Carpathians from the West. Relative age of some fungi has been estimated. Wide circumpolar and alpine distribution points out that <em>Isothea rhytismoides</em> (Bab. ex Berk.) Fr. is one of the oldest dryadicolous fungi. The limited ranges of <em>Sphaerotheca volkartii</em> Blumer, <em>Synchytrium cupulatum</em> Thomas, <em>Hypoderma dryadis</em> Nannf.: L. Holm, and <em>Epipolaeum absconditum</em> (Johanson) L. Holm indicate a relatively young age of these species. A four new taxa i.e. <em>Lachnum uralense, Leptosphaentlina sibirica, Melanomma margaretae</em> and <em>Tiarospora pirozynskii</em> are described and illustrated. 27 species arę for the first time reported from Poland.

scholarly journals Comparación entre ensambles de Phyllophaga (Coleoptera: Melolonthidae) del Occidente de Cuba

2017 ◽  
Vol 65 (1) ◽  
pp. 351
Author(s):  
Annery Serrano Rodríguez ◽  
Miguel Ángel Morón Ríos ◽  
Alejandro Barro Cañamero ◽  
Gabriela Molina
Keyword(s):  
Light Trap ◽  
Habitat Type ◽  
Abundant Species ◽  
Total Abundance ◽  
Plant Structure ◽  
Habitat Types ◽  
Composition And Structure ◽  
Human Habitat ◽  
Intermediate Degree ◽  
The Relationship

The Cuban archipelago has 79 Phyllophaga species with a 98.6 % of endemism, which makes the group ecologically and economically important, as some species are classified as crop pests. The aim of this study was to determine the relationship between the composition and structure of the Phyllophaga assemblages with their habitat type, considering both plant structure and level of human habitat disturbance. A total of 17 locations were sampled in Western Cuba during the rainy seasons of the period from 2011 to 2015; these differed in habitat types (forests and agroecosystems). Samplings followed standard methods and were made once with a light trap screen in each locality. A total of 1153 individuals of 24 Phyllophaga species were collected. The total abundance of collected individuals varied between 10 and 306, and species richness between two and nine species. The most abundant species was Phyllophaga dissimilis (Chevrolat) which also had the highest frequency of occurrence. Generally, less anthropized sites reflected richer and equitative communities; although these characteristics appeared in two sites that showed intermediate degree of disturbance. The non-metric multidimensional scaling showed that the most similar samples were those of the very anthropized sites; this similarity was given mainly by the abundance of Phyllophaga dissimilis, P. insualepinorum and P. puberula. Besides, the geographical distance was not related to the similarity of these assemblages.

scholarly journals A vegetação da capoeira na região do curso médio do Rio Jacuí, RS

1982 ◽  
Vol 4 (4) ◽  
pp. 141 ◽  
Author(s):  
José Newton Cardoso Marchiori ◽  
Solon J. Longhi ◽  
Miguel A. Durlo
Keyword(s):  
Wood Species ◽  
Forest Type ◽  
Floristic Composition ◽  
Woody Species ◽  
Abundant Species ◽  
Economic Importance ◽  
Composition And Structure

This work describes the floristic composition and structure of the brushwood vegetation in the region of the mid flow of the Jacuí River, RS. This forest type is highly heterogeneous. Forty five woody species were found, of which the pioneer vegetationis the most abundant. Species of economic importance occur less frequently. Also identified were ninety-six non-wood species.

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