scholarly journals Asclepias syriaca I. is a threat to biodiversity and agriculture of Ukraine

2021 ◽  
Vol 36 ◽  
pp. 07010
Author(s):  
Ivan Shuvar ◽  
Hanna Korpita ◽  
Volodymyr Balkovskyi ◽  
Antin Shuvar ◽  
Ruslan Kropyvnytskyi
Keyword(s):  
Invasive Species ◽  
Weed Control ◽  
Human Activities ◽  
Agricultural Development ◽  
Asclepias Syriaca ◽  
Powerful Factor ◽  
The Past ◽  
Relevant Today ◽  
Natural Factors ◽  
Green Areas

The problem of weed control has been facing mankind since the beginning of agricultural development, and is especially relevant today. Weeds began to evolve not only under the influence of natural factors, but also human activities, especially with the introduction of herbicides, which have become the most powerful factor in the evolution of segetal vegetation. Over the past two decades for biodiversity of forests, green areas of settlements and agricultural lands. Invasive species have properties that increase their ability to suppress Aboriginal species populations and compete with them for space and resources. Threats from invasive species are one of the most important environmental problems of our time, which is especially acute in the process of globalization.

scholarly journals Memory of the past is one of the riches of any people

2020 ◽  
Vol 20 (4) ◽  
pp. 46-54
Author(s):  
S.A. Litvinskaya ◽  
Keyword(s):  
Natural Environment ◽  
Human Activities ◽  
Complex Relationship ◽  
North Caucasus ◽  
Natural Ecosystems ◽  
Powerful Factor ◽  
The Past ◽  
The North ◽  
Natural Landscapes

An attempt was made to collect numerous materials on paleontology, archeology, history, economics. This will make it possible to generalize and trace the increasingly complex relationship between society and natural ecosystems in the North Caucasus and the consequences of human activities. Attention is focused on the "human effect its geological role as a powerful factor in the transformation of the natural environment. It is important to understand the transformations of natural landscapes and ecological situations as a result of the initial transformative activity of man, an analysis of the conjugation of the evolution of the natural environment and human cultures.

scholarly journals Invasive plant species and the consequences of its prevalence in biodiversity

2021 ◽  
Vol 31 ◽  
pp. 00024
Author(s):  
Ivan Shuvar ◽  
Hanna Korpita ◽  
Antin Shuvar ◽  
Bogdan Shuvar ◽  
Ruslan Kropyvnytskyi
Keyword(s):  
Environmental Protection ◽  
Weed Control ◽  
Plant Species ◽  
Agricultural Development ◽  
Invasive Plant ◽  
Rare Plant ◽  
Invasive Plant Species ◽  
Natural Ecosystems ◽  
Rare Plant Species ◽  
Relevant Today

The problem of weed control has been facing mankind since the beginning of agricultural development, and is especially relevant today. In recent decades, the problem of invasion of rare plant species in Ukraine has been growing. Surveying areas, developing and implementing measures to prevent the destructive effects of biodiversity should be a priority for the preservation of natural ecosystems and environmental protection.

Spatiotemporal Changes of Riverbed and Surrounding Environment in Yongding River (Beijing section) in the Past 40 Years

2020 ◽  
Vol 64 (4) ◽  
pp. 40407-1-40407-13 ◽  
Author(s):  
Ran Pang ◽  
He Huang ◽  
Tri Dev Acharya
Keyword(s):  
Economic Development ◽  
Water Conservation ◽  
Human Activities ◽  
Urban Areas ◽  
Water Volume ◽  
Cropland Area ◽  
The Past ◽  
Surrounding Environment ◽  
Spatiotemporal Changes ◽  
Yongding River

Abstract Yongding River is one of the five major river systems in Beijing. It is located to the west of Beijing. It has influenced culture along its basin. The river supports both rural and urban areas. Furthermore, it influences economic development, water conservation, and the natural environment. However, during the past few decades, due to the combined effect of increasing population and economic activities, a series of changes have led to problems such as the reduction in water volume and the exposure of the riverbed. In this study, remote sensing images were used to derive land cover maps and compare spatiotemporal changes during the past 40 years. As a result, the following data were found: forest changed least; cropland area increased to a large extent; bareland area was reduced by a maximum of 63%; surface water area in the study area was lower from 1989 to 1999 because of the excessive use of water in human activities, but it increased by 92% from 2010 to 2018 as awareness about protecting the environment arose; there was a small increase in the built-up area, but this was more planned. These results reveal that water conservancy construction, agroforestry activities, and increasing urbanization have a great impact on the surrounding environment of the Yongding River (Beijing section). This study discusses in detail how the current situation can be attributed to of human activities, policies, economic development, and ecological conservation Furthermore, it suggests improvement by strengthening the governance of the riverbed and the riverside. These results and discussion can be a reference and provide decision support for the management of southwest Beijing or similar river basins in peri-urban areas.

The Future of the Planetary Trust in a Kaleidoscopic World

2021 ◽  
pp. 1-8
Author(s):  
Edith Brown Weiss
Keyword(s):  
Artificial Intelligence ◽  
Natural Resource ◽  
Human Activities ◽  
New Technologies ◽  
Future Generations ◽  
Nuclear War ◽  
Human Environment ◽  
The Past ◽  
Resource Degradation ◽  
Shared Goal

Today, it is evident that we are part of a planetary trust. Conserving our planet represents a public good, global as well as local. The threats to future generations resulting from human activities make applying the normative framework of a planetary trust even more urgent than in the past decades. Initially, the planetary trust focused primarily on threats to the natural system of our human environment such as pollution and natural resource degradation, and on threats to cultural heritage. Now, we face a higher threat of nuclear war, cyber wars, and threats from gene drivers that can cause inheritable changes to genes, potential threats from other new technologies such as artificial intelligence, and possible pandemics. In this context, it is proposed that in the kaleidoscopic world, we must engage all the actors to cooperate with the shared goal of caring for and maintaining planet Earth in trust for present and future generations.

scholarly journals Didymo and Its Polysaccharide Stalks: Beneficial to the Environment or Not?

2021 ◽  
Vol 2 (1) ◽  
pp. 69-79
Author(s):  
Hurmat Ejaz ◽  
Esther Somanader ◽  
Uday Dave ◽  
Hermann Ehrlich ◽  
M. Azizur Rahman
Keyword(s):  
Invasive Species ◽  
Structural Component ◽  
Negative Effects ◽  
Adhesive Properties ◽  
The Past ◽  
Positive Side ◽  
Potential Benefits ◽  
Negative Impacts ◽  
Bodies Of Water ◽  
Agricultural Setting

Didymosphenia geminata diatoms, or Didymo, was first found to be an invasive species that could have negative impacts on the environment due to the aggressive growth of its polysaccharide-based stalks. The stalks’ adhesive properties have prompted park officials to alert the general public to limit further spread and contamination of this algae to other bodies of water. Although the negative effects of Didymo have been studied in the past, recent studies have demonstrated a potential positive side to this alga. One of the potential benefits includes the structural component of the polysaccharide stalks. The origin of the polysaccharides within stalks remains unknown; however, they can be useful in a waste management and agricultural setting. The primary purpose of this study was to describe both the harmful and beneficial nature of Didymo. Important outcomes include findings related to its application in various fields such as medicine and technology. These polysaccharides can be isolated and studied closely to produce efficient solar power cells and batteries. Though they may be harmful while uncontained in nature, they appear to be very useful in the technological and medical advancement of our society.

1968. The “Prague Spring”: Fifty Years Later. Historical Essays

2021 ◽  
Keyword(s):  
Twentieth Century ◽  
Eastern Europe ◽  
Market Economy ◽  
Central And Eastern Europe ◽  
Educational Institutions ◽  
General Reader ◽  
The Past ◽  
Relevant Today ◽  
Prague Spring ◽  
The Military

This book is devoted to a symbolic event that defined the life and values of several generations. Half a century ago, Czech communists tried to give a new impetus to their country’s system of government by combining socialist values with a rational market economy and the mechanisms of a developed democracy. This effort failed, and the state was occupied by the military. This book is the result of joint efforts by Russian, Czech, and Romanian historians, archivists, and cultural and literary scholars, who—exploring new documents and materials—have reinterpreted these events and their lessons from a present-day perspective. Objectively, the “Prague Spring” is from a bygone era, but it is still a milestone, and many of the problems encountered during the Prague Spring are still relevant today. The authors hope that they have contributed to the historiography of the now-distant events of 1968 and that their contributions will help in analysing the experiences of the past in order to be prepared for the events of the future. This book is aimed at specialists in the history and culture of Central and Eastern Europe, students of higher educational institutions, and the general reader interested in twentieth-century history.

scholarly journals Update on Bolognese surgeon Dr. Benedetto Schiassi: the importance of Schiassi’s tentorium

2017 ◽  
Author(s):  
Sergio Sabbatani ◽  
Luca Ansaloni ◽  
Massimo Sartelli ◽  
Federico Coccolini ◽  
Salomone Di Saverio ◽  
...  
Keyword(s):  
20Th Century ◽  
19Th Century ◽  
Microbial Contamination ◽  
Scientific Activity ◽  
Risk Of Infection ◽  
Noticeable Increase ◽  
The Past ◽  
Relevant Today ◽  
The 19Th Century

Risk of infection remains a major concern for surgeons. The expansion of surgery towards the end of the 19th century determined a noticeable increase in septicemia and gangrene, and surgeons developed various techniques to limit them. In a previous publication, we reminded our readers of one of the gems of Italian surgery, Dr. Giuseppe Ruggi, who operated in Bologna from the end of 19th to the beginning of the 20th century. To him we owe the introduction and dissemination of the antiseptic method in Bologna. His scientific activity continued with Dr. Benedetto Schiassi, his successor. The techniques used to avoid microbial contamination by the Italian surgeon Dr. Schiassi, are particularly interesting, as Schiassi’s tentorium is still useful. Despite advances in surgical technologies, many innovations to prevent infection in surgery proposed in the past are still relevant today.

scholarly journals Interactions Between the Invasive New Zealand Mudsnail (Potamopyrgus Antipodarum) and a Native Snail (Fossaria Bakerilymnaea Bulimoides Group) in the Greater Yeelowstone

2011 ◽  
Vol 33 ◽  
pp. 161-170
Author(s):  
Heather Thon ◽  
Amy Krist
Keyword(s):  
Invasive Species ◽  
New Zealand ◽  
American West ◽  
Biological Diversity ◽  
Potamopyrgus Antipodarum ◽  
The Past ◽  
Conservation Concern ◽  
And Function ◽  
New Zealand Mud Snail ◽  
The Impact

Understanding invasive species impacts is critical to determining how an ecosystem may function after an introduction. Invasive species can alter the structure and function of ecosystems, reduce biological diversity, and alter communities through predation, facilitation and competition. In the past 30 years, the invasive New Zealand mud snail (Potamopyrgus antipodarum) has established in areas of conservation concern in the American West including Yellowstone National Park. To develop a greater understanding of the impact of P. antipodarum on the native co-occurring snail, Fossaria (Bakerilymnaea) bulimoides group, we conducted two experiments to assess the interactions occurring between these snails. We found that F. bulimoides growth was reduced by all interactors, but especially by P. antipodarum. In addition, growth of F. bulimoides was much more affected by high biomass of snails than P. antipodarum. P. antipodarum grew more in the presence of interactors and their growth was facilitated by the presence of the native snail F. bulimoides.

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