scholarly journals Current State of Coenopopulations of Some Rare Endemic Species in Navoi Region, Uzbekistan

2021 ◽  
Vol 40 (4) ◽  
pp. 357-363
Author(s):  
Tashkhanim Rakhimova ◽  
Nodira Rakhimova ◽  
Vasila Sharipova ◽  
Natalya Beshko ◽  
Hayitov Rizamat

Abstract The problem of preserving the biological diversity of the Earth is attracting increasing attention of the world scientific community. Rare plant species, as the most vulnerable part of the flora, are under the greatest threat of extinction. In the study of this group of plants, population methods are increasingly being used. Revealing the number, structure, efficiency of self-renewal and resistance of populations of rare plants in relation to anthropogenic influences creates the basis for developing effective measures for their protection. The aim of the study was to assess the current state of coenopopulations of some rare endemic species – Acantholimon nuratavicum Zakirov ex Lincz. (Plumbaginaceae), Cousinia pseudolanata Popov ex Tscherneva (Asteraceae), Lepidolopha nuratavica Krasch. (Asteraceae) included in the Red Book of Uzbekistan. The results showed that in the ecological–coenotic conditions of the Navoi region, the studied coenopopulations are normal and incomplete. Ontogenetic spectra of coenopopulations are centred and left sided, with a peak for middle-aged and young generative individuals, which is associated with the ecological conditions of habitation and anthropogenic pressure.

Author(s):  
Nargiza K. Rakhimova ◽  
Guljan M. Duschanova ◽  
Eldor E. Temirov ◽  
Akida T. Abdullaeva ◽  
Sobitjon S. Nosirov ◽  
...  

The article provides a review of studies of the vegetation cover of the Western Tien Shan of the NorthEastern slope of the Kurama ridge of the Parkent district (the left bank of Parkentsai) with the participation of the rare endemic species Juno orchioides. The article presents the main results of work in the field of geobotany and botanical geography carried out in the Tashkent region. A list of plants of 4 communities of the herb-shrub association with the participation of the species Juno orchioides is given. The association contains more than 90 species of plants. Of these, trees – 10, shrubs – 9, perennials – 71, annuals – 8. Anthropogenic factors and grazing are the reason for the decrease in this species of Juno orchioides, and in the future, measures for reintroduction must be applied to preserve and restore this species.


Author(s):  
Otitoola Olufolajimi

Climate change is a threat to the earth and sustainable development. There is no country in the world that is not experiencing first-hand, the drastic effects of climate change.7 Indeed, a large section of the global population already suffers or is in some way affected by the adverse effects of climate change, including its impacts on agriculture, aquaculture, livelihoods, biological diversity, health and a broad range of human rights. Although the impacts of climate change are felt globally, developing countries will bear the brunt of their social, economic and environmental effects.


1999 ◽  
Vol 26 (2) ◽  
pp. 79-82 ◽  
Author(s):  
LAKSHMAN D. GURUSWAMY

Over five years have elapsed since the coming into force of the much heralded United Nations Convention on Biological Diversity (CBD or Convention) signed during the 'Earth Summit' at Rio de Janeiro in June 1992 (CBD 1992). Despite the warm, even euphoric welcome extended to this treaty by the environmental community, the difficulties of implementing the CBD in the last five years are unmasking and uncovering its flawed environmental foundations. The language of any legal instrument embodies and expresses the considered intentions of its creators, and may contain obligatory provisions that are legally binding. They may also contain hortatory and aspirational commitments that are not legally enforceable. The CBD rejected 'hard' environmental obligations that are legally binding for non-legal exhortations, and highly qualified 'soft' commitments. Whatever their value be as face-saving strategies for reaching agreement on the CBD, such aspirational expressions do not create a stable foundation for tough decisions in the world of realpolitik.


2021 ◽  
Author(s):  
Kate Pollard

Abstract R. niveus is a highly invasive perennial shrub native to India, China and Southeast Asia. It was introduced around the world through the horticultural trade for its production of sweet tasting fruit and as an ornamental due to the striking red-purple colour of its stems. Nevertheless, cultivated crops were abandoned due to the formation of dense, spiny thickets and many R. niveus plants escaped from cultivation aided by the distribution of seed by birds. Outside of cultivation, R. niveus can outcompete native vegetation, decrease biodiversity and threaten rare endemic species. The success of many Rubus species is linked to the rapid growth of the roots and their ability to reproduce vegetatively. R. niveus has been described as the most invasive weed species on the Galápagos archipelago and declared a noxious weed in the state of Hawaii, USA (Starr et al., 2003).


2006 ◽  
pp. 114-125 ◽  
Author(s):  
G. Popov

Exiting socialism by almost a third of the earth population appears to be the most prominent event of the late XX century. The author makes an attempt to formulate some challenges of this process and thus a theory of exiting socialism. First, he inquires into the concept of exiting socialism as it exists in the world. Then he analyzes real experiences in this field. The research enables the author to outline the main economic, governmental and social challenges of such exit - from municipal economy to science and culture.


2019 ◽  
Vol 41 (1) ◽  
pp. 40-50
Author(s):  
Claire Colebrook

There is something more catastrophic than the end of the world, especially when ‘world’ is understood as the horizon of meaning and expectation that has composed the West. If the Anthropocene is the geological period marking the point at which the earth as a living system has been altered by ‘anthropos,’ the Trumpocene marks the twenty-first-century recognition that the destruction of the planet has occurred by way of racial violence, slavery and annihilation. Rather than saving the world, recognizing the Trumpocene demands that we think about destroying the barbarism that has marked the earth.


2018 ◽  
Vol 8 (1) ◽  
pp. 49-66
Author(s):  
Monika Szuba

The essay discusses selected poems from Thomas Hardy's vast body of poetry, focusing on representations of the self and the world. Employing Maurice Merleau-Ponty's concepts such as the body-subject, wild being, flesh, and reversibility, the essay offers an analysis of Hardy's poems in the light of phenomenological philosophy. It argues that far from demonstrating ‘cosmic indifference’, Hardy's poetry offers a sympathetic vision of interrelations governing the universe. The attunement with voices of the Earth foregrounded in the poems enables the self's entanglement in the flesh of the world, a chiasmatic intertwining of beings inserted between the leaves of the world. The relation of the self with the world is established through the act of perception, mainly visual and aural, when the body becomes intertwined with the world, thus resulting in a powerful welding. Such moments of vision are brief and elusive, which enhances a sense of transitoriness, and, yet, they are also timeless as the self becomes immersed in the experience. As time is a recurrent theme in Hardy's poetry, this essay discusses it in the context of dwelling, the provisionality of which is demonstrated in the prevalent sense of temporality, marked by seasons and birdsong, which underline the rhythms of the world.


Author(s):  
Larysa Nosach ◽  
◽  
Victoria Morgun ◽  

The author's research of the current state and features of the development of the world market for services in conditions of turbulence of world processes was carried; the world leaders of the service sector in the global dimension and leaders of the most dynamic articles of service categories were identified; the share of world exports of services by countries by the level of their economic development was justified; weaknesses in the assessment of indicators of international trade in services were identified; the research is based on UNCTAD statistics.


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