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Ground vegetation data ICP Forests Level II plot, Sonian Forest - Belgium, 1996-2012 ...

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Beetle data, National Park Hoge Kempen - Belgium, 1980-2013 ...

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Bird data from Lower Seascheldt - Belgium, 1991-2017 ...

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Breeding birds at LTSER Veluwe - Netherlands. 1974-2018 ...

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Birds from Dutch Wadden Sea, 1976-2016 ...

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Spider data, National Park Hoge Kempen - Belgium, 1986-2013 ...

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Aquatic invertebrate data from Lower Seascheldt - Belgium, 1999-2015 ...