scholarly journals Variability of morphometric characteristics of the leaves of European white elm from the area of Great War Island

2013 ◽  
pp. 57-69
Author(s):  
Jovana Devetakovic ◽  
Mirjana Sijacic-Nikolic

The European White Elm (Ulmus effusa Willd.) is indicated as a rare and endangered species in the growing stock of the Republic of Serbia. In the area of Great War Island, its natural populations were reduced to 56 registered trees, which occur in three spatially isolated subpopulations. On the basis of the research conducted on the level of variability of adaptible morphometric characteristics of leaves from 14 selected test trees of European White Elm, it can be concluded that the degree of interpopulation variability is satisfactory, which is a good basis for the conservation of the available gene pool.

REPORTS ◽  
2021 ◽  
Vol 2 (336) ◽  
pp. 68-75
Author(s):  
A. R. Sansyzbay ◽  
M. Umitzhanov ◽  
N. W. Bakirov ◽  
M. B. Rysbayev

Argali living on the territory of the Republic of Kazakhstan are listed in the Red Book and need special protection of the state. The number of these animals is falling every year. Urgent measures are being taken to preserve the existing species of argali in all their genetic diversity. One of the promising methods of preserving the gene pool of endangered species of wild animals is the method of deep freezing of sperm and embryo transplantation. The argali or mountain sheep species includes several subspecies that are quite well studied and differ in their external characteristics: ⦁ altai ram or Оvis аmmоn аmmоn; ⦁ anatolian mouflon or Оvis аmmоn аnаtоliса; ⦁ bukhara ram or Оvis аmmоn bосhаrеnsis; ⦁ kazakh argali or Оvis аmmоn соllium; ⦁ gansu argali or Оvis аmmоn dаlаilаmае; ⦁ tibetan mountain sheep or Оvis аmmоn hоdgsоnii; ⦁ north China mountain sheep or Оvis аmmоn jubаtа; ⦁ tianshan mountain sheep or Оvis аmmоn kаrelini; ⦁ argali Kozlova or Оvis аmmоn kоzlоvi; ⦁ karatau mountain sheep or Оvis аmmоn nigrimоntаnа; ⦁ cyprus ram or Оvis аmmоn орhiоn; ⦁ mountain ram marco polo or Оvis аmmоn роlii; ⦁ kyzylkum mountain sheep or Оvis аmmоn sеvеrtzоvi; ⦁ urmian mouflon or Оvis аmmоn urmiаnа. Conservation of biological diversity around the world is now deservedly given great attention. The problem of accelerated reproduction of genetic resources has become particularly relevant at the present time, when the Red Book is becoming larger every year, and the world around us is becoming poorer. Every year, the planet loses many species of animals and plants. Therefore, the search for conservation opportunities for endangered populations of wild animals is not only of scientific, but also of great practical interest. The theoretical basis for the conservation of rare and endangered species of wild animals in Kazakhstan has not yet been developed and has not yet been sufficiently studied. The use of biotechnological techniques makes it possible to preserve the genetic basis of valuable and endangered animal species.


2020 ◽  
Vol 6 (1) ◽  
pp. 7-22
Author(s):  
A.B. Ismailov ◽  
◽  
G.P. Urbanavichus ◽  

During on the field work of 2009–2020 years were obtained data on diversity, distribution and oc-currence of lichens in the Republic of Dagestan including data on rare and endangered species. Based on them we recommend 24 species for inclusion in the new edition of the red data book of the Republic of Dagestan. Among them, 8 species are included in the red book of the Russian Fed-eration (Leptogium burnetiae, L. hildenbrandii, Letharia vulpina, Lobaria pulmonaria, Nephromopsis laureri, Ricasolia amplissima, Tornabea scutellifera, Usnea florida), 16 species are rare and vulnerable in the region (Anaptychia elbursiana, A. roemeri, Chaenotheca hispidula, Circinaria vagans, Coniocarpon cinnabarinum, Enterographa hutchinsiae, Flavoparmelia soredians, Hypotrachyna laevigata, Inoderma byssaceum, Lecanographa lyncea, Lobarina scrobiculata, Pannaria conoplea, Parmelina quercina, Sclerophora farinacea, Seirophora lacunosa, Usnea articulata). Most of the species (20) were proposed to be included with «Vulnerable» category, 2 species (Leptogium burnetiae, Nephromopsis laureri) with «Near Threatened» and 2 species (Tornabea scutellifera, Usnea florida) with «Least Concern». Most of the lichens recommended on protection are epiphytes and concentrated in forest communities on the Coastal lowland (Samur river Delta), in mountain broadleaved and mixed forests.


2014 ◽  
Vol 21 (5) ◽  
pp. 601-609
Author(s):  
Wang Deyun ◽  
Peng Jie ◽  
Chen Yajing ◽  
Lü Guosheng ◽  
Zhang Xiaoping ◽  
...  

2020 ◽  
Vol 957 (3) ◽  
pp. 47-53
Author(s):  
E.A. Kravets

The author offers mapping and geoecological analysis of the Russian Federation regions presence in the state program “Environmental Protection”. The unequal distribution of the program’s targets and activities in different regions is revealed. A considerable number of relevant environmental problems for several mentioned regions have not been reflected in the program. It is important to increase the area of specially protected natural areas for a significant number of subjects of the Russian Federation. The status “part of the territory occupied by specially protected natural territories of Federal value in the total area of the subject of the Russian Federation” is recommended to be assigned all regions of Russia. Identification and elimination of objects of accumulated environmental damage that threat to the Volga river is relevant, at least for all the regions in which the Volga flows. Not all regions with a high level of air pollution and/or large masses of air pollutants have the indicator “reduction of total emissions for the reporting year”. It is necessary to increase the Program of measures for the protection of rare and endangered species of plants and to expand the list of regions in which it is planned to protect rare and endangered species of animals.


2021 ◽  
Vol 13 (6) ◽  
pp. 3007
Author(s):  
Xiaojiong Zhao ◽  
Jian Wang ◽  
Junde Su ◽  
Wei Sun ◽  
Haoxian Meng

Quantitative assessment and evaluation of ecological parameters and biodiversity conservation are prime concerns for long-term conservation of rare and endangered species and their associated habitats in any ecological region. In this study, Gansu Province, a biodiversity hotspot, was chosen as the research area. We predicted the distribution patterns of suitable habitats for rare and endangered species. The replacement cost method was adopted to calculate the conservation value of rare and endangered species. The suitable habitat distribution area of rare and endangered wild animals reached 351,607.76 km2 (without overlapping area), while that of plants reached 72,988.12 km2 (without overlapping area). The conservation value of rare and endangered wildlife is US $1670.00 million. The high-value areas are mostly concentrated in the south and north of Gansu Province. The conservation value of rare and endangered wild plants is US $56,920.00 million. The high-value areas are mostly concentrated south of Gansu Province. The conservation value is US $58,590.00 million a year, and its distribution trend is gradually decreasing from northeast to southwest, with the highest in the forest area south of Gansu Province, followed by the Qilian Mountain area in the north. These results are of great significance for future improvement of the evaluation index system of ecosystem services and the development of ecosystem services and management strategies.


2021 ◽  
Vol 8 (1) ◽  
pp. 29-34
Author(s):  
Vincenzo Ferri ◽  
Paolo Crescia ◽  
Christiana Soccini ◽  
Alessio Olini ◽  
Stefano Celletti

[The spring presence of two individuals of the Sea lamprey, Petromyzon marinus, in the River Mignone near Tarquinia (Northern Lazio) could highlight a new Italian reproductive site of this rare and endangered species. This exceptional possibility could certainly be favored by the good quality of both the waters of the Mignone, and the environmental context of the record, but would require the urgent equipment of the barrier of Le Mole with a fish ladder in order to allow the sea lamprey’s upstream migration towards the areas of the upper course, even more suitable for their reproduction].   [Article in Italian]


Author(s):  
V. S. Mandrusova ◽  
I. S. Gordej ◽  
O. M. Lyusikov ◽  
V. E. Shimko ◽  
I. A. Gordej

In this work, the genetic diversity of the modern gene pool of the winter rye (S. cereal L.) of the Republic of Belarus from 20 actual breeding samples was investigated using 15 microsatellite (SSR) markers to develop divergent crossing combinations in breeding for heterosis. It was shown that the formed set of SSR markers is highly effective – the informational content index (PIC) varied from 0.50 to 0.83 and averaged 0.72. The most effective microsatellite markers (SCM28, SCM43, SCM101 and SCM102) were identified and can be successfully used to study the genetic diversity of rye. It has been established that the modern gene pool of the winter rye of the Republic of Belarus is generally characterized by fairly wide genetic diversity (interpopulation variability) – all collection samples are characterized by a unique allelic composition of the studied microsatellite loci. Based on investigation results, a hierarchical clustering dendrogram was constructed, which made it possible to determine the most genetically divergent combinations of crosses. The information obtained can be used for the development of an effective scheme allowing to develop new varieties and hybrids in the practical breeding of rye for heterosis.


Sign in / Sign up

Export Citation Format

Share Document