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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Let the grass grow higher and thus encourage root growth. It will also allow the grass to self-seed. If you mow a path in the middle, it will show that it is indeed meant to be that way as opposed to being neglected.
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