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    Increase in typhoon intensity in eastern Asia in last 130 years
Typhoons or hurricanes affect large areas of the World, which are often densely populated (eastern cost of USA or eastern Asia). New evidence about dramatic increase in occurrence of strong typhoons since the end of 19th century exists just for eastern Asia.

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Novel Root-Fungus Symbiosis in Ericaceae

28. 06. 2012
We discovered a novel type of basidiomycetous ericoid mycorrhizal symbiosis, termed ‘sheathed ericoid mycorrhiza’. It was found in two habitats in mid-Norway as a co-dominant mycorrhizal symbiosis in Vaccinium spp.

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Video presentation

    A global assessment of invasive plant impacts on resident species, communities and ecosystems: the interaction of impact measures, invading species' traits and environment

01. 03. 2012

Press Release (PDF) Czech

Nitrogen time bomb threatens biodiversity of European forests




21. 02. 2012
In recent decades, European forests have been exposed to the impact of atmospheric nitrogen deposition. The mechanisms of the impact of increased nitrogen on European forest vegetation have been little studied so far. Czech scientists from the Institute of Botany of the Academy of Sciences, together with 20 colleagues under the leadership of Prof Verheyen from Ghent University studied the impact of air-borne nitrogen on the vegetation of broadleaved temperate European forests. Nitrogen deposition and consequent eutrophication might be the main causes of species composition and diversity changes in forest understories.
This study shows that one should be cautious when drawing conclusions about the impact of atmospheric nitrogen depositions. However, the accumulated nitrogen might still have a significant impact if forest canopies open up again. In such a case, the nitrogen time bomb may in fact explode.

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Idea for future ISS exploitation
The idea Variable chlorophyll fluorescence kinetics as a tool for non-invasive method for monitoring physiological performance of primary producers in LSS was submitted as response to ESA announcement Call for Ideas: ISS for Exploration.
Methods using variable chlorophyll fluorescence kinetics are commonly used for monitoring of physiological status of plants on the Earth, but no such measurements have been performed in spaceflight conditions. During the spaceflight, the plants are subjected to various stresses, especially microgravity and cosmic radiation that could negatively affect their physiological status and these changes as well as possible adaptation/acclimatization processes could be tracked by fluorescence methods. If ground and flight tests prove that fluorescence data are reliable and fast indicator they could be used for monitoring of physiological status of primary producers in the life support systems. The data will be used not only for system regulation but also as early warning.
The idea is being evaluated by ESA now and the results should be posted in June 2011.
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Alien species invade higher altitudes
  28. 12. 2010
Montane regions of the Czech Republic are becoming increasingly invaded by alien plants; many species that were introduced by humans colonized high altitudes over the last two centuries. This process is a consequence of regions located in higher altitudes becoming increasingly more suitable for invasions by alien plants.

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    Globalisation burdens future generations with biological invasions
  20. 12. 2010
A new study on biological invasions based on extensive data of alien species from 10 taxonomic groups and 28 European countries has shown that patterns of established alien species richness are more related to historical levels of socio-economic drivers than to contemporary ones. An international group of 16 researchers reported the new finding this week in the Proceedings of the National Academy of Sciences of the United States of America (PNAS). The publication resulted from the three-year project DAISIE, funded by European Union within its 6th Framework Programme.

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Open Access Article
Old World plants induce African sunbirds to hover
From the time of Charles Darwin research on plants adapted to bird pollination proceed. Up to the present day no plant in the Old World adapted to hovering fly of bird pollinators was found contrary to situation in New World, where hummingbirds hover to pollinate many plant species.
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    Consequences of being rich: wealth and population are key drivers of invasive species in Europe

A new study of biological invasions in Europe found they were linked not so much to changes in climate or land cover, but to two dominant factors – more money and more people. Wealth and population density, along with an increase in international trade and commerce, were the forces most strongly associated with invasive species that can disrupt ecosystems and cause severe ecological or agricultural damage, scientists said.

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Open Access Article

    Evropa prohrává boj s vetřelci
Britští farmáři hlásí škody ve výši téměř 4 miliardy euro ročně, němečtí 12 milionů, černomořští rybáři 17 milionů, rybáři v severním moři téměř 10 milionů. Lesní hospodáři obhlížejí desetitisíce hektarů lesů plné umírajících stromů, lékaři evidují milionové náklady na léčbu pacientů přicházejících s novými chorobami. Kdo je viníkem těchto ztrát? Vetřelci. Nepůvodní organismy zabírající naši půdu, naše řeky i jezera a dokonce i evropská moře.

Press Release (PDF) Czech