HydroBASINS lev08 watershed · #2080483640
Bassin de Isar
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 10 administrative regions across 2 countries : Bad Tölz-Wolfratshausen, Garmisch-Partenkirchen, Imst, Innsbruck Land, Innsbruck Stadt +5
Sub-basin area
1 702,4km²
Upstream area
1 702,4km²
Discharge
42,62m³/s
Mean elev.
1 247m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
10 dept-equivalent regions (GADM L2)
- 684.3 km²40.1% of basin
- 436.7 km²25.6% of basin
- 330.8 km²19.4% of basin
- 182.5 km²10.7% of basin
- 30.4 km²1.8% of basin
- 19.0 km²1.1% of basin
- 8.6 km²0.5% of basin
- 8.0 km²0.5% of basin
2 moreFull L2 list
- München5.4 km² · 0.3%
- Reutte1.4 km² · 0.1%
30 intersecting protected areas
Karwendel
IUCN VNature Park
567.78 km² overlap
Karwendel
IUCN Not ReportedSpecial Protection Area (Birds Directive)
556.24 km² overlap
Karwendel
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
556.24 km² overlap
Naturschutzgebiet Karwendel
IUCN IVNature Reserve
467.22 km² overlap
Karwendel mit Isar
IUCN Not ReportedSpecial Protection Area (Birds Directive)
195.89 km² overlap
Karwendel mit Isar
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
195.80 km² overlap
Nature Reserve
193.51 km² overlap
Estergebirge
IUCN Not ReportedSpecial Protection Area (Birds Directive)
53.81 km² overlap
Landscape Protection Area
51.05 km² overlap
21 more protected areassorted by overlap area
Ruhegebiet Achental-West
IUCN IVRest Area
38.68 km² overlap
LSG "Walchensee"
IUCN VLandscape Protection Area
35.06 km² overlap
Ruhegebiet Eppzirl
IUCN IVRest Area
32.58 km² overlap
Estergebirge
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
29.12 km² overlap
Oberes Isartal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
25.08 km² overlap
Jachenau und Extensivwiesen bei Fleck
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
14.33 km² overlap
Naturschutzgebiet Arnspitze
IUCN IVNature Reserve
11.53 km² overlap
Nature Reserve
11.23 km² overlap
LSG Isarauen
IUCN VLandscape Protection Area
11.04 km² overlap
Landscape Protection Area
9.98 km² overlap
Landscape Protection Area
8.94 km² overlap
Landscape Protection Area
8.75 km² overlap
Moore zwischen Dietramszell und Deining
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.73 km² overlap
Landscape Protection Area
8.53 km² overlap
Landscape Protection Area
8.16 km² overlap
Mittenwalder Buckelwiesen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.07 km² overlap
Moore südlich Königsdorf, Rothenrainer Moore und Königsdorfer Alm
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.88 km² overlap
Landscape Protection Area
5.78 km² overlap
Attenloher Filzen und Mariensteiner Moore
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.57 km² overlap
Ellbach- und Kirchseemoor
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.77 km² overlap
Flyschberge bei Bad Wiessee
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 101 distinct species · 399 449 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 10 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Isar : 8 espèces reliées par 14 interactions GloBI sur 3 types (connectance 31.1%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
5,1°C
Annual rain
1 052mm
Moisture idx (CMI)
0,36
Runoff
779mm/an
PET
667mm
AET
649mm
Mean slope
19,5°
Water table
666cm
Forest
81%
Crops
2%
Urban
2%
Protected
54%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)