scholarly journals Semen banking—is it now feasible for captive endangered species?

Oryx ◽  
1988 ◽  
Vol 22 (3) ◽  
pp. 172-178 ◽  
Author(s):  
W. V. Holt ◽  
H. D. M. Moore
Keyword(s):  
Genetic Diversity ◽  
Endangered Species ◽  
Genetic Material ◽  
Wild Animals ◽  
Rare And Endangered Species ◽  
Rare And Endangered ◽  
Semen Preservation

This article proposes that serious consideration should now be given to the establishment of banks of genetic material from rare and endangered species. In the light of advances in the technology associated with semen assessment and preservation, the limitations that have so far discouraged the practice of semen freezing and banking can now be minimized and circumvented. The authors review these developments and suggest that semen preservation should be reconsidered as a practical means of preserving the genetic diversity currently contained within captive stocks of wild animals.

Genetic diversity and genetic structure of the rare and endangered species, Primula ranunculoides

2014 ◽  
Vol 21 (5) ◽  
pp. 601-609
Author(s):  
Wang Deyun ◽  
Peng Jie ◽  
Chen Yajing ◽  
Lü Guosheng ◽  
Zhang Xiaoping ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Structure ◽  
Endangered Species ◽  
Rare And Endangered Species ◽  
Rare And Endangered

scholarly journals CONSERVATION OF THE GENE POOL OF ENDANGERED ARGALI SPECIES

REPORTS ◽  
2021 ◽  
Vol 2 (336) ◽  
pp. 68-75
Author(s):  
A. R. Sansyzbay ◽  
M. Umitzhanov ◽  
N. W. Bakirov ◽  
M. B. Rysbayev
Keyword(s):  
Endangered Species ◽  
Gene Pool ◽  
Biological Diversity ◽  
Practical Interest ◽  
Tianshan Mountain ◽  
Wild Animals ◽  
Rare And Endangered Species ◽  
The World ◽  
Rare And Endangered ◽  
The Republic

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.

Cryobanking of Amphibian Genetic Recourses in Russia: Past and Future

2019 ◽  
Vol 26 (6) ◽  
pp. 319-324
Author(s):  
Victor K. Uteshev ◽  
Edith N. Gakhova ◽  
Ludmila I. Kramarova ◽  
Natalia V. Shishova ◽  
Svetlana A. Kaurova ◽  
...  
Keyword(s):  
Genetic Material ◽  
Reproductive Technologies ◽  
Cell Biophysics ◽  
Amphibian Species ◽  
Modern Biology ◽  
Rare And Endangered Species ◽  
Long Term Storage ◽  
Current State ◽  
Rare And Endangered ◽  
Academy Of Sciences

In modern biology, a search for efficient and safe ways of long-term storage of animal genomes is vital for the survival of rare and endangered species. To date, the only reliable method of prolonging the preservation of genome is deep freezing of somatic and reproductive cells, including spermatozoa. Here we overview the current state of reproductive technologies and present the cryopresevation strategies of genetic material of selected amphibian species. These strategies were developed at the Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Russia. Cryopreservation could help managing the threatened populations of amphibian species through genome storage and mediate the production of healthy animals from the stored material.

Geoecological analysis of the Russian Federation regions representation in the state program “Environmental Protection”

2020 ◽  
Vol 957 (3) ◽  
pp. 47-53
Author(s):  
E.A. Kravets
Keyword(s):  
Endangered Species ◽  
Environmental Protection ◽  
Russian Federation ◽  
The State ◽  
Volga River ◽  
Unequal Distribution ◽  
State Program ◽  
Rare And Endangered Species ◽  
Rare And Endangered ◽  
The Russian Federation

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.

scholarly journals Research on a Biodiversity Conservation Value Assessment Method Based on Habitat Suitability of Species: A Case Study in Gansu Province, China

2021 ◽  
Vol 13 (6) ◽  
pp. 3007
Author(s):  
Xiaojiong Zhao ◽  
Jian Wang ◽  
Junde Su ◽  
Wei Sun ◽  
Haoxian Meng
Keyword(s):  
Ecosystem Services ◽  
Endangered Species ◽  
Biodiversity Conservation ◽  
Gansu Province ◽  
Distribution Area ◽  
Suitable Habitat ◽  
Conservation Value ◽  
Value Assessment ◽  
Rare And Endangered Species ◽  
Rare And Endangered

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.

scholarly journals [First occurrence of Sea Lamprey, Petromyzon marinus Linnaeus 1758 (Agnatha, Petromyzontiformes, Petromyzontidae) in the River Mignone (Northern Lazio).]

2021 ◽  
Vol 8 (1) ◽  
pp. 29-34
Author(s):  
Vincenzo Ferri ◽  
Paolo Crescia ◽  
Christiana Soccini ◽  
Alessio Olini ◽  
Stefano Celletti
Keyword(s):  
Endangered Species ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Environmental Context ◽  
Upstream Migration ◽  
Rare And Endangered Species ◽  
Fish Ladder ◽  
First Occurrence ◽  
Rare And Endangered

[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]

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