HydroBASINS lev08 watershed · #2080494490

Bassin de Bregenzer Ach

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 9 administrative regions across 2 countries : Bludenz, Bodensee, Bodenseekreis, Bregenz, Dornbirn +4

31% lakePfafstetter: 23269058

Sub-basin area

1 068,7km²

Upstream area

1 068,7km²

Discharge

32,6m³/s

Mean elev.

996m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Alter Rhein165 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

9 dept-equivalent regions (GADM L2)

Bregenz
Vorarlberg · Austria
661.1 km²
61.7% of basin
Lindau (Bodensee)
Bayern · Germany
197.3 km²
18.4% of basin
Oberallgäu
Bayern · Germany
145.9 km²
13.6% of basin
Dornbirn
Vorarlberg · Austria
20.2 km²
1.9% of basin
Bludenz
Vorarlberg · Austria
16.7 km²
1.6% of basin
Bodensee
Baden-Württemberg · Germany
16.1 km²
1.5% of basin
Ravensburg
Baden-Württemberg · Germany
9.6 km²
0.9% of basin
Feldkirch
Vorarlberg · Austria
2.8 km²
0.3% of basin

1 moreFull L2 list

Bodenseekreis2.0 km² · 0.2%

30 intersecting protected areas

Naturpark Nagelfluhkette
IUCN VI
Biosphere Park
154.10 km² overlap
Nagelfluhkette
IUCN V
Landscape Protection Area
38.23 km² overlap
Hohe Kugel - Hoher Freschen - Mellental
IUCN IV
Nature Reserve
34.26 km² overlap
Hoher Ifen und Piesenkopf
IUCN Not Reported
Special Protection Area (Birds Directive)
26.15 km² overlap
Hörnergruppe
IUCN V
Landscape Protection Area
13.60 km² overlap
UNESCO-Biosphärenpark Großes Walsertal
IUCN VI
Biosphere Park
12.37 km² overlap
Hoher Ifen
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
10.13 km² overlap
Hoher Ifen
IUCN IV
Nature Reserve
10.13 km² overlap
Ifen
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
10.11 km² overlap

21 more protected areassorted by overlap area

Nagelfluhkette Hochgrat-Steineberg
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
9.41 km² overlap
Kanisfluh
IUCN V
Landscape Protection Area
8.11 km² overlap
Oberes Weißachtal mit Lanzen-, Katzen- und Mittelbach
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
6.97 km² overlap
Bayerisches Bodenseeufer
IUCN V
Landscape Protection Area
5.75 km² overlap
Piesenkopfmoore
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
5.14 km² overlap
Bregenzerachschlucht
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
4.34 km² overlap
Bayerischer Bodensee
IUCN Not Reported
Special Protection Area (Birds Directive)
4.17 km² overlap
Hirschberg
IUCN IV
Nature Reserve
3.30 km² overlap
Hochifen und Gottesackerwände
IUCN IV
Flora Protection Area
3.11 km² overlap
Körbersee
IUCN IV
Flora Protection Area
3.09 km² overlap
Waldsee bei Lindenberg im Allgäu und Umgebung
IUCN V
Landscape Protection Area
2.39 km² overlap
Moor- und Hügelland südlich Wangen im Allgäu
IUCN V
Landscape Protection Area
2.00 km² overlap
Rohrachschlucht
IUCN IV
Nature Reserve
1.70 km² overlap
Naturschutzgebiet 'Rohrachschlucht'
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.70 km² overlap
Wildflusssystem Bolgenach
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.64 km² overlap
Mehrerauer Seeufer - Bregenzerachmündung
IUCN IV
Nature Reserve
1.54 km² overlap
Hörnergruppe
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.35 km² overlap
Roßbad
IUCN IV
Nature Reserve
1.23 km² overlap
Mehrerauer Seeufer - Bregenzerachmündung
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.18 km² overlap
Leiblach und Oberreitnauer Ach
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.15 km² overlap
Stockenweiler Weiher, Degermoos, Schwarzenbach
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.02 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

9 389 distinct species · 227 760 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 32 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.

ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Bregenzer Ach : 21 espèces reliées par 78 interactions GloBI sur 5 types (connectance 15.7%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.157

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

6,1°C

Annual rain

1 139mm

Moisture idx (CMI)

0,38

Runoff

953mm/an

PET

700mm

AET

683mm

Mean slope

14,2°

Water table

490cm

Forest

76%

Crops

Urban

Protected

13%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)