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A richly illustrated identification key that makes an invaluable companion to Aquatic Plants of Northern and Central Europe including Britain and Ireland Featuring more than 400 color illustrations, this succinct, fixed-layout ebook provides a handy identification guide to all of the region’s aquatic plants. The book’s dichotomous keys to botanical features makes it a perfect companion to the larger, comprehensive guide, Aquatic Plants of Northern and Central Europe including Britain and Ireland.
The first comprehensive guide to the aquatic plants of the region Beneath the surface of bodies of freshwater—springs, streams, rivers, ponds and lakes—there is a world of plants of great variety and beauty, a realm that is often poorly known and understood. Correctly identified, these plants can tell us much about the character and condition of the habitats in which they live. A collaboration of Danish, German, and British field botanists specializing in freshwater plants, this guide presents all of the known aquatic plants of Northern and Central Europe, including Britain and Ireland, as well as many marginal and wetland species. This is the first comprehensive guide to the identificat...
The majority of the examples are taken from regions where the rivers run most of the year.
En rekke planter og dyrearter som ikke naturlig hører hjemme her, blir i dag innført til Norden, noe som i mange tilfeller kan føre til utilsiktede økologiske effekter, for ikke å si direkte skade. Denne rapporten identifiserer de 1382 artene som har kommet til Norden, enten det er med overlegg eller ikke. Boken gir også oversikt over relevante internasjonale lover og retningslinjer i dette spørsmålet. Engelsk tekst.
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Recoge: 1. The context - 2. The assessment - 3. Pressures - 4. Human activities - 5. Problems - 6. Conclusions.