Search results for "THREATS"
showing 10 items of 55 documents
Up-to-date report on the distribution ofHelianthemum lippii(Cistaceae) in Italy
2015
An up-to-date report on the distribution of Helianthemum lippii in Italy is provided also on the basis of the findings by Lojacono-Pojero in 1889 who reported the existence of a relic population in Sicily (southern Italy), which is now thought to be extinct because of human disturbance. Field excursions permitted to confirm the locus classicus reported by Lojacono-Pojero as the other Sicilian localities that have been reported more recently. Based on a careful analysis of the literature the presence of H. lippii is currently excluded in Calabria and Apulia. The main causes that threaten the habitat of H. lippii in Sicily are pointed out according to IUCN Threats Classification Scheme.
Plant invasions on small Mediterranean islands. An overview
2016
Biological invasions have become one of the main drivers of habitat degradation and a leading cause of biodiversity loss in island ecosystems worldwide. The spread of invasive species poses a particular environmental threat on the islands of the Mediterranean Basin, which are hot spots of biodiversity and contain rare habitats and endemic species, especially on small islands, which are highly vulnerable to biodiversity loss. Following a recent survey, in this paper we aim to provide an overview of the present-day non-native vascular flora of small Mediterranean islands based on a sample of 37 islands located in the middle of the Mediterranean Sea, off the coast of Italy. By comparing the cu…
Proposed Environmental Risk Management Elements in a Carpathian Valley Basin, within the Roşia Montană European Historical Mining Area
2021
Non-ferrous metals mining activities have long accompanied people, and began in the study area of South East Europe over 2000 years ago. The environment quality is significantly affected by both historic mining activities and contemporary impacts. All these problems, inducing synergic negative effects on local organism communities, have created a chronic state of pollution. The Corna Valley has one of the oldest historical human impacts in Romania due to the influence of mining. Fish and benthic macroinvertebrates have exhibited significant responses to long term mining effects on lotic systems. The analysis of macroinvertebrate communities, correlated with the lack of fish and some biotope…
Sources Of State Destabilization
2018
The article presents the significance of the strategy and threats to the state in the aspect of the destabilization activities carried out, the ideological revolution of society. The authors of a given strategy strive to use available sources of state, institutions and organizations in order to achieve an advantage over an opponent, a competitor satisfying the expectations of a given community. Strategies playing the role of an independent factor in the environment of threats are the antidotes of each conflict affecting security, reducing or increasing the public's fears. They give a different dimension in the context of related social determinants, dosing with the recipe of achieving the i…
Gobio Genus Species Integrated Management System – Târnava Rivers Study Case (Transylvania, Romania)
2019
Abstract The lotic habitats quality indicative congeners species Gobio gobio, Gobio kessleri and Gobio albipinnatus populations’ dynamic in time (2004-2019) and space revealed a decreasing trend in these rivers ecological status. The ADONIS:CE tool has been used to build a backing management system model, based on these indicative fish species habitat needs, indicators for favourable conservation status, pressures and threats. This management system implementation in the field will favour the amelioration of lotic habitats and the ecological status recovering of two of the local fish species of conservative interest (G. kessleri and G. albipinnatus).
Ekspansja militarna Rosji w regionie zagrożeniem dla grupy państw nadbałtyckich : Litwy, Łotwy i Estonii
2015
The authors of this article introduce the issue of the threat of the Baltic States from Russia. Consideration of the potential hazard of the Baltic States by the Russian Federation, manifested increasingly imperialistic aspirations, we want to identify the main causes that underlie such a policy of Russia. Membership in the Baltic states of NATO and the European Union gives hope for the unity of the members of NATO and the EU, these countries will be effectively defended against growing Russian militarism.
Ocean acidification through the lens of ecological theory
2015
© 2015 by the Ecological Society of America. Ocean acidification, chemical changes to the carbonate system of seawater, is emerging as a key environmental challenge accompanying global warming and other humaninduced perturbations. Considerable research seeks to define the scope and character of potential outcomes from this phenomenon, but a crucial impediment persists. Ecological theory, despite its power and utility, has been only peripherally applied to the problem. Here we sketch in broad strokes several areas where fundamental principles of ecology have the capacity to generate insight into ocean acidification's consequences. We focus on conceptual models that, when considered in the co…
Zagrożenia bezpieczeństwa wewnętrznego Niemiec jako konsekwencja procesów imigracyjnych
2017
In the Federal Republic of Germany there is a visible growth of the importance of immigration policy, of the weight of the problem of integration/lack of integration of mi- grants with the German society is visible, and of the need for permanent monitoring of internal security threats and difficulties with their prevention and fighting them. Many researchers working on the internal security of Germany admit that the current threats are linked, by the majority of Germans, with the influx of immigrants to this country. The migrants are seen as a source of potential risks, dangers and internal conflicts. It might be argued that there is an undeniable correlation between migra tion and security…
Cyberzagrożenia rozwoju dzieci i młodzieży – podszeptywacze używek i podszeptywacze śmierci
2018
The article contains a description of two phenomena occurring in the network. The first phenomenon – online instiga-tors of suicides – concerns the phenomenon of manipulation of young Internet users, seeking support and listening to difficult situations by persuading them to commit suicide. The second phenomenon – online instigators of the drugs – concerns the phenomenon of drug education through drug addicts active in the network.
LA VULNERABILITÀ DEI SUOLI ITALIANI
2012
Negli ultimi decenni la pressione esercitata sul paesaggio dalla popolazione italiana – al pari di quella europea – è cresciuta in maniera più intensa e veloce che nel passato. Questa pressione antropica ha avuto un così elevato impatto sull’ambiente che ha causato un notevole intervento dei processi di degradazione del suolo. In particolare: i) vaste aree del paesaggio italiano sono e rimangono esposte alla erosione del suolo che ancora rappresenta uno dei più gravi problemi per la scarsa addozione di misure e pratiche di conservazione del suolo; ii) Il consumo di suolo è ancora molto più evidente nelle principali aree metropolitane e costiere, spinto anche dalla diffusione degli impianti …