HydroBASINS lev08 watershed · #2080500630

Bassin de Ill

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 7 administrative regions across 2 countries : Bludenz, Bregenz, Feldkirch, Inn, Landeck +2

2% lakePfafstetter: 23269060

Sub-basin area

1 279,2km²

Upstream area

1 279,2km²

Discharge

42,4m³/s

Mean elev.

1 596m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rhein551 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

7 dept-equivalent regions (GADM L2)

Bludenz
Vorarlberg · Austria
1135.2 km²
88.5% of basin
Feldkirch
Vorarlberg · Austria
83.3 km²
6.5% of basin
Landeck
Tirol · Austria
5.7 km²
0.4% of basin
Bregenz
Vorarlberg · Austria
3.8 km²
0.3% of basin
Prättigau/Davos
Graubünden · Switzerland
2.6 km²
0.2% of basin
Landquart
Graubünden · Switzerland
0.1 km²
0.0% of basin
Inn
Graubünden · Switzerland
0.0 km²
0.0% of basin

30 intersecting protected areas

UNESCO-Biosphärenpark Großes Walsertal
IUCN VI
Biosphere Park
174.00 km² overlap
Verwall
IUCN Not Reported
Special Protection Area (Birds Directive)
119.38 km² overlap
Pflanzenschutzgebiet (Gebirgsflora)
IUCN V
Protected Area
52.49 km² overlap
Rellstal und Lünerseegebiet
IUCN IV
Protected Landscape Section
32.87 km² overlap
Klostertaler Bergwälder
IUCN Not Reported
Special Protection Area (Birds Directive)
21.43 km² overlap
Vergaldatal
IUCN IV
Rest Area
19.36 km² overlap
Gadental
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
15.14 km² overlap
Gadental
IUCN IV
Nature Reserve
13.00 km² overlap
Nenzinger Himmel
IUCN IV
Flora Protection Area
9.97 km² overlap

21 more protected areassorted by overlap area

Faludriga-Nova
IUCN IV
Nature Reserve
9.81 km² overlap
Garsälli/Zegerberg
IUCN Ib
Forest Reserve
8.87 km² overlap
Spirkenwälder Saminatal
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
4.78 km² overlap
Drei Schwestern
IUCN IV
Protected Landscape Section
4.41 km² overlap
Ludescherberg
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
3.77 km² overlap
Hohe Kugel - Hoher Freschen - Mellental
IUCN IV
Nature Reserve
3.12 km² overlap
Bangs-Matschels
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.94 km² overlap
Bangs-Matschels
IUCN Not Reported
Special Protection Area (Birds Directive)
1.94 km² overlap
Matschels
IUCN IV
Nature Reserve
1.94 km² overlap
Montiola
IUCN IV
Protected Landscape Section
1.57 km² overlap
Streuewiesenbiotopverbund Rheintal - Walgau
IUCN IV
Nature Reserve
1.24 km² overlap
Davenna
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.12 km² overlap
Spirkenwälder Brandnertal
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
1.05 km² overlap
Schuttfluren Tafamunt
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.68 km² overlap
Wiegensee
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.65 km² overlap
Übersaxen-Satteins
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.50 km² overlap
Spirkenwälder Innergamp
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.44 km² overlap
Frastanzer Ried
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.39 km² overlap
Stachler Wald
IUCN IV
Protected Forest
0.38 km² overlap
Alpenmannstreu Gamperdonatal
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.38 km² overlap
Hinter Bärgwald/Heubüal
IUCN IV
Protected Forest
0.32 km² overlap

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

Species present

12 954 distinct species · 454 913 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 29 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 Ill : 16 espèces reliées par 112 interactions GloBI sur 6 types (connectance 22.6%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

112

Connectance

0.226

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°

3,4°C

Annual rain

1 213mm

Moisture idx (CMI)

0,51

Runoff

1 039mm/an

PET

575mm

AET

567mm

Mean slope

24,2°

Water table

784cm

Forest

74%

Crops

Urban

Protected

23%

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