Untere Au (nature reserve)

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"Untere Au" nature reserve

IUCN Category IV - Habitat / Species Management Area

D-BW-SIG-Sigmaringen - Nature reserve 'Untere Au' 002.JPG
location Sigmaringen , District of Sigmaringen , Baden-Württemberg , Germany
surface 20 ha
Identifier 4,205
WDPA ID 165996
Geographical location 48 ° 5 '  N , 9 ° 11'  E Coordinates: 48 ° 4 '54 "  N , 9 ° 11' 7"  E
Untere Au (nature reserve) (Baden-Württemberg)
Untere Au (nature reserve)
Sea level 570 m
Setup date June 26, 1992
administration Regional Council Tübingen
f2
D-BW-SIG-Sigmaringen - Nature reserve 'Untere Au' 004.JPG

The Untere Au area is a nature reserve (NSG number 4.205) in the west of the Baden-Württemberg city ​​of Sigmaringen in the district of Sigmaringen in Germany, which was designated by ordinance of June 26, 1992 by the Tübingen regional council .

description

The area is described as a "near-natural Danube old arm with differently structured riparian zones with woody stocks as a habitat for numerous animal and plant species".

location

The 20 hectare large nature reserve Lower Au is one natural area to Baaralb and the Upper Danube Valley . It is about two and a half kilometers southwest of the Sigmaringen city center on the district "Laiz" north of the state road 277, the zollernalb railway and the Danube , at an altitude of around 570  meters above sea level. NN .

Emergence

The Untere Au is an old Danube loop, which was separated from the Danube by the construction of the railway line around 1870 and today represents the largest oxbow lake in the upper reaches of the Danube to Ulm . The oxbow lake in the west is still connected to the Danube through a small ditch and is fed by some weak springs from the rebound slope.

Protection purpose

The main protection purpose is the preservation and optimization of the near-natural still water with its adjoining, differently structured bank zones as well as the wooded stock on the slope side as a habitat for numerous endangered animal and plant species. The agriculturally used areas upstream of the Danube oxbow lake are intended to serve as a buffer zone to prevent negative influences on the still water.

Partner protected areas

The Untere Au area is enclosed by the “ Donau- und Schmeiental ” landscape protection area (4.37.036) and part of both the FFH area “ Upper Danube Valley between Beuron and Sigmaringen ” (7920342), the bird protection area “ Südwestalb and Upper Danube Valley ” (7820441) as also of the Upper Danube Nature Park .

Flora and fauna

flora

The sloping slope side of the oxbow lake is covered with a patchy willow belt, in places a reed zone and an upstream pond camphor stand is formed. The outer bank is steep and merges directly into the mixed deciduous forest of the embankment.

The following, by orders of assorted kinds (selection) are included in the protected area:

Field elm
Hop clover
Sycamore maple

fauna

The Laizer Donaualtarm provides a food base and habitat for amphibians , dragonflies , other insects and birds . Despite many impairments, it is still home to some rare animal species listed as endangered on the Baden-Württemberg Red List .

Eight grasshoppers (Orthoptera), twelve butterfly (Lepidoptera) and 22 dragonfly species (Odonata) have been identified in the nature reserve .

insects

Birds

See also

literature

  • Department for nature conservation and landscape management: nature reserves in the administrative district of Tübingen . Ed .: Regional Council Tübingen. Second revised and expanded edition. Thorbecke, Ostfildern 2006, ISBN 978-3-7995-5175-5 , pp. 482-483 .

Web links

Commons : Lower Au  - collection of images, videos, and audio files

Individual evidence

  1. ↑ Profile of the nature reserve in the LUBW's list of protected areas , section " Protection purpose"
  2. ↑ Baden-Württemberg Red List ( Memento of the original from December 5, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. at the State Institute for the Environment, Measurements and Nature Conservation Baden-Württemberg (LUBW); Retrieved December 5, 2015 @1@ 2Template: Webachiv / IABot / www4.lubw.baden-wuerttemberg.de