HydroBASINS lev08 watershed · #2080493740
Bassin de la Birse
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 14 administrative regions across 2 countries : Arlesheim, Basel, Courtelary, Delémont, Dorneck +9
Sub-basin area
921,4km²
Upstream area
921,4km²
Discharge
19,32m³/s
Mean elev.
733m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
14 dept-equivalent regions (GADM L2)
- Delémont296.6 km²32.1% of basin
- MoutierBern · Switzerland218.8 km²23.7% of basin
- ThiersteinSolothurn · Switzerland97.2 km²10.5% of basin
- Laufen80.5 km²8.7% of basin
- 74.4 km²8.1% of basin
- Arlesheim40.2 km²4.4% of basin
- DorneckSolothurn · Switzerland30.4 km²3.3% of basin
- CourtelaryBern · Switzerland29.7 km²3.2% of basin
9 communes (GADM L5)Available for FRA, RWA
- Lucelle10.04 km²96% commune
- Kiffis7.14 km²100% commune
- Winkel1.41 km²17% commune
- Lutter0.85 km²10% commune
- Wolschwiller0.31 km²3% commune
- Oberlarg0.23 km²3% commune
- Ligsdorf0.23 km²2% commune
- Sondersdorf0.19 km²2% commune
- Raedersdorf0.18 km²3% commune
30 intersecting protected areas
Raimeux
IUCN Not AssignedForest Reserves
3.15 km² overlap
Des Forges à Sormont
IUCN Not AssignedForest Reserves
2.76 km² overlap
Ermitage - Chilchholz
IUCN Not AssignedForest Reserves
2.72 km² overlap
Dittinger Weide und Dittinger Wald
IUCN Not AssignedForest Reserves
1.70 km² overlap
Bogental - Geitenberg
IUCN Not AssignedForest Reserves
1.57 km² overlap
Folpotat
IUCN Not AssignedForest Reserves
1.53 km² overlap
Jura alsacien
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.53 km² overlap
Titterten-Schemel
IUCN Not AssignedForest Reserves
1.23 km² overlap
Buschlen
IUCN Not AssignedForest Reserves
1.21 km² overlap
21 more protected areassorted by overlap area
Les Charmattes - Derrière Chiéton
IUCN Not AssignedForest Reserves
1.16 km² overlap
Federal Inventory of Amphibian Spawning Areas of National Importance
1.11 km² overlap
Côte Sur le Bambois
IUCN Not AssignedForest Reserves
1.05 km² overlap
Löffelberg - Baanholz
IUCN Not AssignedForest Reserves
0.80 km² overlap
Windenloch
IUCN Not AssignedForest Reserves
0.72 km² overlap
Lingenberg
IUCN Not AssignedForest Reserves
0.67 km² overlap
Stürmen - Eggfels - Bännli
IUCN Not AssignedForest Reserves
0.66 km² overlap
Bollement
IUCN Not AssignedForest Reserves
0.62 km² overlap
Etang de la gruère
IUCN Not AssignedEmerald Sites
0.61 km² overlap
Etang de la Gruère
IUCN Not ReportedEmerald Network
0.61 km² overlap
Steingrube Bohlberg
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
0.58 km² overlap
Erhollen - Chlummen
IUCN Not AssignedForest Reserves
0.55 km² overlap
Roti Flue
IUCN Not AssignedForest Reserves
0.55 km² overlap
Meistelberg - Bohlberg
IUCN Not AssignedForest Reserves
0.52 km² overlap
Les Royes
IUCN IVFederal Inventory of Amphibian Spawning Areas of National Importance
0.49 km² overlap
Chaltbrunnental - Birsmatte
IUCN Not AssignedForest Reserves
0.48 km² overlap
Ammannsegg-Äschollen-St.Fridli-hinteri Weid
IUCN Not AssignedForest Reserves
0.45 km² overlap
Kaltbrunnenthal
IUCN Not AssignedForest Reserves
0.43 km² overlap
Sunnenrain
IUCN Not AssignedForest Reserves
0.43 km² overlap
Sur Vaferdeau
IUCN Not AssignedForest Reserves
0.41 km² overlap
Oberdörfer
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
0.39 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
11 216 distinct species · 1 048 473 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 la Birse : 25 espèces + 6 bulles famille, 77 interactions GloBI documentées sur 5 types (connectance 16.6%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
7,6°C
Annual rain
1 086mm
Moisture idx (CMI)
0,32
Runoff
664mm/an
PET
720mm
AET
654mm
Mean slope
12,0°
Water table
460cm
Forest
78%
Crops
5%
Urban
10%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)