The odonatofauna of the Damvallei (East-Flanders, Belgium): past glory or still worthwhile
1996
Knijf, G. | Anselin, A. | Demolder, H. (Institute of Nature Conservation, Brussels (Belgium))
The Damvallei, rich in aquatic habitats, hosted an impressive number (39) of interesting dragonfly (Odonata) species before the construction of a highway junction in 1967. A dragonfly survey was undertaken in the area between 1992-1995 to compare present-day with former species richness. A number of species linked to mesotrofic ponds and marshes, oligotrofic waterbodies and oxygen-rich slow running rivers and brooks have disappeared from the area. Although several species have been lost since 1970, the presence of healthy populations of several interesting species, in particular Coenagrion pulchellum and Erythromma najas and of a high species richness (26), indicates that the area is still valuable for dragonflies. However it urgently needs a proper dragonfly-friendly management
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