A small Weser floodplain nature reserve protecting calcareous spring mires, alder-ash gallery forest, and rich birdlife in the Weserbergland.
Weserniederung am Heiligenberg
Weserniederung am Heiligenberg is a small nature reserve in the Weserbergland region of Lower Saxony, Germany, situated in the floodplain of the River Weser northwest of the town of Bodenwerder. Covering roughly seven hectares along the lower slope of the Heiligenberg, it protects an elongated spring horizon fed by calcareous tufa springs, where natural brooks, seepage areas, and spring-fed calcareous fens have formed over time.
The reserve combines several distinct habitats in close proximity: oak-hornbeam and beech forests on the moist slopes, species-rich gallery forests of alder and ash laced with spring rivulets, reed beds and tall herb communities in the floodplain, and patches of willow floodplain forest along the Weser itself. This mosaic supports specialized fauna such as the bulgy snail and the striped spring demoiselle, alongside breeding birds including black stork, eagle owl, red and black kite, and grey heron.
Designated as a nature reserve on 30 June 2016, the area is also part of the EU Habitats Directive site 'Quellsumpf am Heiligenberg' and, in large measure, the EU Bird Directive site 'Sollingvorland', underlining its importance for both habitat and species conservation in a region otherwise dominated by agriculture.