Figure 1a (on top) illustrates a cumulative number of aliens in the European Seas (EU + non EU), grouped by primary producers (PP), vertebrates (VER) and invertebrates (INV). Figure 1b (on bottom) illustrates the number of new introductions of all alien species per decade since 1950 in European Seas, by MSFD (Marine Strategy Framework Directive) region and sub-region.
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A rotting log is a mini nature reserve in its own right!
By removing dead or dying trees from woodland, a section of the natural nutrient-cycle can be lost. A lack of dead wood reduces species diversity by about 20 %. Avoid removing dead wood from your property. You could be doing away with thousands of invertebrate species and fungi.
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