Environmental Conditions of Percid Waters in Central Europe

1977 ◽  
Vol 34 (10) ◽  
pp. 1586-1591 ◽  
Author(s):  
B. Entz
Keyword(s):  
Central Europe ◽  
Bottom Sediments ◽  
Environmental Conditions ◽  
Fish Communities ◽  
Trophic Levels ◽  
Nutrient Concentrations ◽  
Qualitative Properties ◽  
Central European ◽  
Cultural Effects ◽  
Biotic Characteristics

A brief review of the limnology of central European waters indicated that, except for calcium in the bottom sediments, mesotrophic lakes were intermediate in nutrient concentrations between oligotrophic and eutrophic waters. Other biotic characteristics also attained maxima in mesotrophic lakes. For example, the existence of distinctive phytoplankton, invertebrate, and fish communities, implied certain qualitative properties of mesotrophic waters rather than only quantitative intermediacy on the oligotrophic–eutrophic cline. These properties, in part, represent some aspects of percid habitat that differ from those of other fish communities. Key words: Percidae, algae, bottom sediments, cultural effects, eutrophication, limnology, mesotrophy, trophic levels, primary production

scholarly journals Tors in Central European Mountains – are they indicators of past environments?

2019 ◽  
Vol 16 (1) ◽  
pp. 67-87
Author(s):  
Aleksandra Michniewicz
Keyword(s):  
Central Europe ◽  
Environmental Conditions ◽  
Ice Sheet ◽  
Two Stage ◽  
Central European ◽  
Model Driven ◽  
One Stage ◽  
Different Types ◽  
Geological Factors ◽  
European Mountains

Abstract Tors represent one of the most characteristic landforms in the uplands and mountains of Central Europe, including the Sudetes, Czech-Moravian Highlands, Šumava/Bayerischer Wald, Fichtelgebirge or Harz. These features occur in a range of lithologies, although granites and gneisses are particularly prone to tor formation. Various models of tor formation and development have been presented, and for each model the tors were thought to have evolved under specific environmental conditions. The two most common theories emphasised their progressive emergence from pre-Quaternary weathering mantles in a two-stage scenario, and their development across slopes under periglacial conditions in a one-stage scenario. More recently, tors have been analysed in relation to ice sheet extent, the selectivity of glacial erosion, and the preservation of landforms under ice. In this paper we describe tor distribution across Central Europe along with hypotheses relating to their formation and development, arguing that specific evolutionary histories are not supported by unequivocal evidence and that the scenarios presented were invariably model-driven. Several examples from the Sudetes are presented to demonstrate that tor morphology is strongly controlled by lithology and structure. The juxtaposition of tors of different types is not necessarily evidence that they differ in their mode of origin or age. Pathways of tor remodelling and degradation under subaerial conditions are identified and it is argued that processes of tor formation and development are ongoing. Thus, tors are not reliable indicators of past environments, because they are considerably influenced by both geological factors, such as lithology and structure, and geomorphological factors such as hillslope setting..

scholarly journals The perspectives for genetically modified cellulosic biofuels in the Central European conditions

2014 ◽  
Vol 60 (No. 6) ◽  
pp. 247-259 ◽  
Author(s):  
P. Blahova ◽  
K. Janda ◽  
L. Kristoufek
Keyword(s):  
Czech Republic ◽  
Central Europe ◽  
Environmental Conditions ◽  
Biomass Yield ◽  
Econometric Model ◽  
Genetically Modified ◽  
Cellulosic Biofuels ◽  
The Czech Republic ◽  
Central European ◽  
Genetic Modifications

This paper connects the biofuels literature with the genetic modifications literature by considering the potential of genetic modifications for increasing the efficiency of the cellulosic biofuels production. This is done for one particular case through analyzing the effect of genetically modified corn adoption on the overall yields of corn for silage. Our econometric model confirms that the use of genetically modified corn with the inserted MON810 gene increases the overall corn biomass yield in the production and environmental conditions of the Central Europe, in particular in the Czech Republic.  

scholarly journals Historical public health in central Europe with special reference to Hungary. Long-term environmental effects of a historical cataclysm

2012 ◽  
Vol 1 (1) ◽  
pp. 9
Author(s):  
Csaba Varga ◽  
István Ember ◽  
Edit Murányi ◽  
István Kiss
Keyword(s):  
Public Health ◽  
Health Policy ◽  
Central Europe ◽  
Environmental Effects ◽  
Environmental Conditions ◽  
State Of Health ◽  
Short Introduction ◽  
Central European ◽  
Central European Region

<p class="Abstract">Hungary, in the centre of Carpathian Basin grapples with numerous challenges in order to improve catastrophic indices of environmental conditions of the country, as well as the state of health of the population. Some of these problems are subjects of financial and health policy, and can be solved internally. The remaining environmental problems can only be remedied by cooperation with neighbouring younger countries. This vitally important cooperation is hampered by severe historical conflicts burdening even the present political affiliations. The authors give a short introduction and explanation of the recent sensitive situation in this Central European region, as a late consequence of an historical cataclysm happened more than nine decades ago.</p>

scholarly journals On the Way to the Fluvial Anthroposphere—Current Limitations and Perspectives of Multidisciplinary Research

Water ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2188
Author(s):  
Lukas Werther ◽  
Natascha Mehler ◽  
Gerrit Jasper Schenk ◽  
Christoph Zielhofer
Keyword(s):  
Land Use ◽  
Central Europe ◽  
Environmental Conditions ◽  
Land Reclamation ◽  
Multidisciplinary Research ◽  
Risk Minimisation ◽  
Central European ◽  
Natural Processes ◽  
Forcing Mechanisms ◽  
Early Human

Floodplains represent a global hotspot of sensitive socioenvironmental changes and early human forcing mechanisms. In this review, we focus on the environmental conditions of preindustrial floodplains in Central Europe and the fluvial societies that operated there. Due to their high land-use capacity and the simultaneous necessity of land reclamation and risk minimisation, societies have radically restructured the Central European floodplains. According to the current scientific consensus, up to 95% of Central European floodplains have been extensively restructured or destroyed. Therefore, question arises as to whether or when it is justified to understand Central European floodplains as a ‘Fluvial Anthroposphere’. The case studies available to date show that human-induced impacts on floodplain morphologies and environments and the formation of specific fluvial societies reveal fundamental changes in the medieval and preindustrial modern periods. We aim to contribute to disentangling the questions of when and why humans became a significant controlling factor in Central European floodplain formation, and how humans in interaction with natural processes and other chains of effects have modified floodplains. As a conclusion, we superimpose emerging fields of research concerning the onset of the Fluvial Anthroposphere and provide 10 specific thematic objectives for future multidisciplinary work.

Diatoms in bottom sediments of thermokarst lakes of the Pechora Delta

2019 ◽  
pp. 285-290
Author(s):  
Elvira A. Zinnatova, Larisa A. Frolova ◽  
Larisa A. Frolova
Keyword(s):  
Bottom Sediments ◽  
Environmental Conditions ◽  
Sources Of Information ◽  
Thermokarst Lakes ◽  
Thermokarst Lake ◽  
Fouling Organisms ◽  
Diatom Complexes

The Northern lakes are good objects for paleoclimatic reconstructions. One of the sources of information about changes in the ecosystems of lakes are diatoms. The study of diatom complexes revealed 133 taxa belonging to 49 genera, 24 families, 13 orders and 3 classes in the bottom sediments of the thermokarst lake of the Pechora Delta. Dominated by the Holarctic representatives of benthic and fouling organisms giving preference to the alkaline environmental conditions.

scholarly journals Revisiting the Environmental Kuznets Curve Hypothesis: A Case of Central Europe

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3415
Author(s):  
Bartosz Jóźwik ◽  
Antonina-Victoria Gavryshkiv ◽  
Phouphet Kyophilavong ◽  
Lech Euzebiusz Gruszecki
Keyword(s):  
Economic Growth ◽  
Co2 Emissions ◽  
Central Europe ◽  
Environmental Kuznets Curve ◽  
European Countries ◽  
Kuznets Curve ◽  
The European Union ◽  
Ekc Hypothesis ◽  
Central European ◽  
Long Run

The rapid economic growth observed in Central European countries in the last thirty years has been the result of profound political changes and economic liberalization. This growth is partly connected with reducing carbon dioxide (CO2) emissions. However, the problem of CO2 emissions seems to remain unresolved. The aim of this paper is to test whether the Environmental Kuznets Curve (EKC) hypothesis holds true for Central European countries in an annual sample data that covers 1995–2016 in most countries. We examine cointegration by applying the Autoregressive Distributed Lag bound testing. This is the first study examining the relationship between CO2 emissions and economic growth in individual Central European countries from a long-run perspective, which allows the results to be compared. We confirmed the cointegration, but our estimates confirmed the EKC hypothesis only in Poland. It should also be noted that in all nine countries, energy consumption leads to increased CO2 emissions. The long-run elasticity ranges between 1.5 in Bulgaria and 2.0 in Croatia. We observed exceptionally low long-run elasticity in Estonia (0.49). Our findings suggest that to solve the environmental degradation problem in Central Europe, it is necessary to individualize the policies implemented in the European Union.

scholarly journals A three-dimensional view on biodiversity changes: spatial, temporal, and functional perspectives on fish communities in the Baltic Sea

2018 ◽  
Vol 75 (7) ◽  
pp. 2463-2475 ◽  
Author(s):  
Romain Frelat ◽  
Alessandro Orio ◽  
Michele Casini ◽  
Andreas Lehmann ◽  
Bastien Mérigot ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Environmental Conditions ◽  
Environmental Changes ◽  
Temporal Dynamics ◽  
Marine Ecosystem ◽  
Fish Communities ◽  
The Baltic Sea ◽  
Functional Richness ◽  
Holistic Understanding ◽  
The Baltic

Abstract Fisheries and marine ecosystem-based management requires a holistic understanding of the dynamics of fish communities and their responses to changes in environmental conditions. Environmental conditions can simultaneously shape the spatial distribution and the temporal dynamics of a population, which together can trigger changes in the functional structure of communities. Here, we developed a comprehensive framework based on complementary multivariate statistical methodologies to simultaneously investigate the effects of environmental conditions on the spatial, temporal and functional dynamics of species assemblages. The framework is tested using survey data collected during more than 4000 fisheries hauls over the Baltic Sea between 2001 and 2016. The approach revealed the Baltic fish community to be structured into three sub-assemblages along a strong and temporally stable salinity gradient decreasing from West to the East. Additionally, we highlight a mismatch between species and functional richness associated with a lower functional redundancy in the Baltic Proper compared with other sub-areas, suggesting an ecosystem more susceptible to external pressures. Based on a large dataset of community data analysed in an innovative and comprehensive way, we could disentangle the effects of environmental changes on the structure of biotic communities—key information for the management and conservation of ecosystems.

scholarly journals Discourse Beyond Borders: Periodicals, Dissidents, and European Cultural Spaces

2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Carlos Reijnen
Keyword(s):  
Cold War ◽  
Public Sphere ◽  
Eastern Europe ◽  
Central Europe ◽  
Spatial Perspective ◽  
Central European ◽  
East European ◽  
European Public ◽  
Cultural Spaces ◽  
The Cold War

Émigré periodicals in Cold War Europe have long been considered isolated islands of Central and East European communities with limited relevance. In the second half of the Cold War, some of these periodicals functioned as crucial intersections of communication between dissidents, emigrants and Western European intellectuals. These periodicals were the greenhouses for the development of new definitions of Central Europe, Eastern Europe, and Europe at large. This article studies Cold War émigré periodicals from a spatial perspective and argues that they can be analysed as European cultural spaces. In this approach, European cultural spaces are seen as insular components of a European public sphere. The particular settings (spaces) within which the periodicals developed have contributed greatly to the ideas that they expressed. The specific limits and functions of periodicals such as Kultura or Svědectví [Testimony] have triggered perceptions of Central European and European solidarity. The originally Russian periodical Kontinent promoted an eventually less successful East European-Russian solidarity.  

scholarly journals Central European Border Settlements and Interwar Ireland: a Transnational Study of the North- Eastern Boundary Bureau and the Boundary Commission

2017 ◽  
Vol 57 (3) ◽  
Author(s):  
Lili Zách
Keyword(s):  
World War I ◽  
Central Europe ◽  
East Central Europe ◽  
Central European ◽  
The North ◽  
Eastern Boundary ◽  
North Eastern ◽  
Post War ◽  
Transnational Study ◽  
Insight Into

ABSTRACTIn the aftermath of the Great War, the birth of new independent small states in East-Central Europe was closely followed in Irish nationalist circles due to the possibility of Partition in Ireland. Newspaper editorials, journal articles and diplomatic accounts illustrate that post-war Ireland had an open attitude toward the settlement of borders on the Continent as the dissolution of the Austro-Hungarian Empire was similarly controversial. This paper aims to investigate how contemporary Irish commentators perceived the question of boundary settlements in Central Europe in order to provide an insight into the transformation of political space in both Ireland and Central Europe. After providing a brief background to the Irish boundary question, this paper touches upon the most important points in historiography with regard to border settlements in the post-World War I era.. It also discusses Irish Partition history in detail, concentrating on the North-Eastern Boundary Bureau (NEBB) and the Boundary Commission, and the importance of Central European precedents in their work. Moreover, this paper also proposes to provide an insight into the Irish interest in the minority problem in European borderland regions after 1925 in order to illustrate the outward-looking attitude to Irish nationalists, even in relation to borders and minorities.

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