Guidance Marshes, bogs and swamps: scrub encroachment
Index section Marshes, bogs and swamps: scrub encroachment
- Breeding birds: scrub encroachment of marshes, bogs and swamps
- Birds of reed vegetation: shrubs and trees are encroaching marshland
- Hedgerow birds: scrub encroachment of marshes, bogs and swamps
Introduction
In many marshes, bogs and swamps, the vegetation is becoming rank and shrubs and trees are rapidly encroaching. This process is attributable to the eutrophication of the surface water, the effects of water draw-down and the abandonment of the small-scale management of reedbeds.
On average, the net effect of all the trends mentioned on the birds of marshes, bogs and swamps is not clear. However, because of the encroaching by shrubs and the withdrawal of reed borders certain birds of reed vegetation are declining, while hedgerow and woodland birds are increasing.
