5789 plant species were classified as alien. 2843 originating outside of Europe, according to the researchers and their publication in the journal Preslia. By contrast, in 1980 only 1568 alien species were registered.
Of these, 580 had come from outside Europe. According to the researchers, around six new species arrive in Europe each year on average. This inventory of information about alien species is designed to help developing Europe-wide management strategies and tools of risk assessment to protect biodiversity. New species that bring about long-term changes to ecosystems by e.g. competing with native species, are regarded as one of the greatest threats to biodiversity.The highest numbers of alien plant species were reported from Belgium, the UK and the Czech Republic. The UK, Germany and Belgium have the greatest numbers of naturalized aliens, new species that have been able to establish stable populations. Among the most widespread of the new plant species are Canadian fleabane (Conyza canadensis), Jerusalem artichoke (Helianthus tuberosus) and black locust or false acacia (Robinia pseudoacacia), which all originated in North America. More than three-quarters of all new plant species have been brought to Europe unintentionally.
As part of the EU project DAISIE (Delivering Alien Invasive Species Inventories for Europe), all known alien species in the countries of Europe were documented for the first time. Information on the ecology and spread of alien plants and animals was collected and made available via an online database to anyone with an interest in the subject (http://www.europe-aliens.org/). Research institutes and organisations from 15 nations were involved in the project.
The largest ever conference of ecologists from all over Europe is taking place in Leipzig from 15 to 19 September 2008. Over 1000 participants from more than 30 countries have registered for EURECO-GFOE 2008. The conference is a joint meeting of the European Ecological Federation (EEF) and the Gesellschaft für Ökologie (GfÖ) and is being organised at the Congress Center Leipzig by the Helmholtz Centre for Environmental Research (UFZ) and the Universities of Halle-Wittenberg and Leipzig. The EEF is the umbrella organisation of the national ecological associations in Europe. Over 8000 ecologists belong to its member associations. The GfÖ is the ecological society of Germany, Austria and Switzerland.
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The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
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The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.
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