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<title><string language="fre"><![CDATA[Dr Fengzhi He & Dr Rebecca Tharme - Freshwater megafauna: diversity, status, and cultural importance]]></string></title>
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<string language="fre"><![CDATA[Megafauna species play important ecological
roles. Owing to their intrinsic characteristics such as large habitat
requirements, long lifespan, and late maturity they are particularly
susceptible to extinction. Freshwater megafauna species, i.e. freshwater
animals that can reach a body mass of 30 kg or more, are also vulnerable to
anthropogenic impacts. There are intense and growing threats such as
overexploitation, dam construction, habitat degradation, pollution, and
biological invasions in diversity hotspots of freshwater megafauna including
the Amazon, Congo, Mekong, and Ganges-Brahmaputra river basins. Consequently,
half of all assessed species are considered as threatened on the IUCN Red List.
Global populations of freshwater megafauna declined by 88% from 1970 to 2012.
Their geographic distributions have also changed profoundly. In Europe,
distribution ranges of 42% of all freshwater megafauna species have contracted
by more than 40% of their historical distributions. Given that freshwater
megafauna share similar threats with overall freshwater biodiversity and often have large area requirement, they hold the potential to
function as flagship and umbrella species. In addition, many freshwater
megafauna species have important cultural values to local communities. Hence, a
megafauna-based approach could be a promising strategy to promote freshwater
biodiversity conservation benefiting a broad range of co-occurring species.
 ]]></string></description>
<keyword><string language="fre"><![CDATA[river]]></string></keyword><keyword><string language="fre"><![CDATA[environmental health]]></string></keyword>
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<date><dateTime>2021-01-20</dateTime></date>
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LE STUDIUM]]></string>
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