LFA für Feldherpetologie und Ichthyofaunistik

NAB 19 Oker Valley

The north part of this area is located within the natural landscape unit Ostbraunschweigisches Hügelland (East Brunswick Hills) and the northern foreland of the Harz Mountains in the natural geographic region of Boerden.
The southern part located to the south of Werlaburgdorf belongs to the natural landscape unit Innerstebergland within the natural geographic region Weser-Leinebergland (Weser Leine Hills). The area comprises the valley of the Oker River, which runs in a north-south direction and ranges from a few hundred metres to over 2 km in width. The area mainly consists of agricultural land. Small forested areas, settlements, open and working gravel ponds and a sugar refinery with sedimentation ponds are to be found as well. The agricultural areas are predominantly used as arable fields, while grassland and barren land dominate in closer proximity to the Oker.
The area is home to approx. half of Lower Saxony's current European green toad population. Former gravel pits and sedimentation ponds serve as their major colonisation areas. Considerable common spade foot and crested newt populations are found here as well. Fairly large blue-winged grasshopper (Oedipoda caerulescens) populations are also of significance here.

Area size: 2.143ha