scholarly journals Ophrys sphegodes subsp. helenae (Renz) Soó & D.M.Moore (Orchidacea): a new subspecies for the Bulgarian flora

2021 ◽  
Vol 8 (2) ◽  
pp. 55-73
Author(s):  
Dimcho Zahariev

Abstract Ophrys sphegodes subsp. helenae (Renz) Soó & D.M.Moore is a Balkan endemic, for which so far there are data for distribution only on the territory of 2 countries: Greece and Albania. During a study of the flora of the Voyvodsko plateau, located in the northeastern part of the Republic of Bulgaria, in April 2019 a locality of this species was discovered. The development of the population in the period April 2019 - May 2021 was monitored. The population consists of 3 individuals located on an area of 0.5 m2. Of these, 2 individuals are in a generative state and 1 individual is in a vegetative state. The abiotic and biotic conditions in the habitat are described. It is characterized by a rich floristic diversity: the associated species are 60 in number. Anthropogenic impact has been reported. The prospects for the existence of the population are indicated. It is proposed to declare the territory around the locality a protected area in order to preserve the habitat from negative anthropogenic impacts.

2017 ◽  
Vol 6 (2) ◽  
pp. 65-70
Author(s):  
Nizami Enver Novruzov ◽  
Sabina Nizami Bunyatova

Three species of amphibians and 21 species of reptiles were found on the investigated anthropogenically transformed territories of the eastern part of Azerbaijan, which was 32% of 75 species representing the herpetofauna of the republic as a whole. A consistent decrease in the abundance and index of species diversity was revealed with an increase in the degree of development of the territory and the level of anthropogenic impact. The ratio of species in anthropocoenosiss varied depending on the size of their areas. The recreational pressing has presumably less influence on the numbers, but more on the species diversity of amphibian and reptile. In less developed areas, their numbers increase due to the presence of background species. The effectiveness of adaptation of some species of amphibians and reptiles is apparently associated with an adequate response to environmental changes brought about by anthropogenic impact on the natural environment. As the research has shown, anthropogenic impacts contributed to the spread and growth of the numbers of 7 species (2 species of amphibians and 5 species of reptiles). For Absheron Peninsula and Gobustan, such species were Bufotes variabilis , Pelophylax ridibundus , Eremias velox , Cyrtopodion caspius , Emys orbicularis , Natrix tessellata , Macrovipera lebetina . During the period of research, all these species were observed practically in all anthropogenic landscapes and now can be considered promising synanthropes for the regions studied.


2016 ◽  
pp. 46-66
Author(s):  
Тю Фю Dulepova

The aeolian processes play an important role in the relief formation under the semiarid conditions of the intermountain basins of Southern Siberia. Ancient sand landforms occur in different regions of Siberia — the Ob, Chuya, Аley, Yenisei, Аngara, Selenga, Chikoy, Khilok and Chara river valleys and Lake Baikal coasts. The sandy coasts of Lake Baikal are of great interest in terms of floristic diversity determined by a high degree of endemism. Despite centuries of study of the lake basin, sand vegetation is poorly described in the literature. This study presents an analysis of 184 relevés of psammophytic vegetation from the Republic of Buryatia (Severobaikalsky, Barguzinsky, Pribaikalsky districts) and Irkutsk region (Olkhon Island) obtained in 2009–2014.


2017 ◽  
Vol 7 (1) ◽  
pp. 105-111
Author(s):  
Jay Narayan Shrestha

The anthropogenic impact on Keshalia river, especially on fish diversity, is very high. Over fishing with unconventional fishing methods, disposal of domestic and industrial effluents, excess use of pesticides, dumping sites of municipalities, dam construction without fish ladder across the river and mining of sands and gravels are major anthropogenic impacts on the river.


2018 ◽  
Vol 12 (4) ◽  
pp. 50-52
Author(s):  
Сергей Глушко ◽  
Sergey Glushko ◽  
Шамиль Шайхразиев ◽  
Shamil Shaykhraziev

In the area of our research, there are larch forests of artificial origin, there are no native larch forests. Larch is actively used in the forestry of the Republic of Tatarstan. The area of plantings of larch in the forest fund of Tatarstan has reached five thousand hectares. For the purpose of economic use of larch plantations, a typology of larch forests with exclusively artificial origin is being developed in the region. The typology of artificially created forests is of great practical importance. The results of the study of modern forest types are necessary for the development of the forest theory. Almost all modern forests are formed in the course of anthropogenic impact, we should state the spread of the anthropogenic forest formation process on the vast territories developed by man. The larch forests of the Republic of Tatarstan are a vivid example of anthropogenic forests, so their research will allow us to develop methods for classifying the majority of modern forests growing in the area of research.


2020 ◽  
Vol 26 ◽  
pp. 134-160
Author(s):  
Alexander Paterson

The Constitution of the Republic of South Africa, 1996, recognises customary law as an independent and original source of law, subject to the Constitution itself and legislation that specifically deals with customary law. As recognised by the Constitutional Court in Alexkor Ltd vs the Richtersveld Community (2004), customary law, as an independent source of law, may give rise to rights including rights to access and use natural resources. Rights to access and use natural resources are often comprehensively regulated by legislation. Conflicts between customary law and legislation relevant to natural resources may arise, as evidenced in the case of Mr Gongqose, who along with several other community members were caught fishing in the Dwesa-Cwebe Marine Protected Area situated off the Eastern Cape coastline. Notwithstanding their claims to be exercising their customary rights to fish in the area, they were convicted in the Magistrate’s Court for certain offences in terms of the Marine Living Resources Act (1998), under which the marine protected area had been established. Their appeal to the High Court proved unsuccessful and the Supreme Court of Appeal was tasked with considering the relationship between their customary rights to fish and legislation purportedly extinguishing these rights. The SCA’s judgment in Gongqose & Others vs Minister of Agriculture, Forestry and Fisheries & Others (2018) is the first of its kind in South Africa to consider the extinguishment of customary rights to access and use natural resources through post-constitutional legislation. This note critically considers the guidance the SCA provided on proving the existence of customary rights to access and use natural resources, and the manner in which they may be extinguished through legislation. While the focus is on marine living resources, the lessons emerging from this case are relevant to other natural resource sectors.


2021 ◽  
Author(s):  
Oleg Crepis ◽  
◽  
Dumitru Bulat ◽  
Elena Zubcov ◽  
Marin Usatii ◽  
...  

The populations of most fish species in the Republic of Moldova reproduce naturally, however, as a result of the increasing anthropogenic impact on aquatic ecosystems, the conditions for their natural reproduction have deteriorated significantly. In this context, one of the research objectives for 2020 was the development of efficient technological principles for conservation and rational use of local fish stock. It was revealed the ensuring of the development of the most vulnerable stages in the ontogenesis of fish in controlled environmental conditions is one of the basic principles of productivity management of Danube mackerel populations. In order to put into practice the principles of managing the productivity of breeding stocks, a mobile installation has been developed for the reproduction of pelagophilous fish species.


2021 ◽  
Vol 80 (7) ◽  
pp. 118-121
Author(s):  
Е.А. Zabolotnaya ◽  
N.А. Pikalova ◽  
S.N. Semenova

Recreational use of the resource potential of protected areas is associated with anthropogenic impact on the components of the ecosystem, which at its high level can lead to negative consequences. The purpose of the article is to assess the transformation of soil properties depending on the recreational load and their genesis. The relevance of this work is due to the high anthropogenic load on suburban forest ecosystems. The object of research is the protected area “Rock Zerkalo”.


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