Ontologia

HydroBASINS lev08 watershed · #2080492760

Bassin de Birsig

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 6 administrative regions across 2 countries : Arlesheim, Basel, Dorneck, Haut-Rhin, Laufen +1

Pfafstetter: 23267093

Sub-basin area

101,2km²

Upstream area

35 689,9km²

Discharge

1 052,66m³/s

Mean elev.

403m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Vieux Rhin / Altrhein1382 km²

▲ Receives from 2 basins

6 dept-equivalent regions (GADM L2)

10 communes (GADM L5)

30 intersecting protected areas

  • Jura alsacien

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    7.26 km² overlap

  • Allschwilerwald

    IUCN Not Assigned

    Forest Reserves

    0.53 km² overlap

  • Bammertsgraben

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.38 km² overlap

  • Wolschwiller

    IUCN IV

    Forest Managed Biological Reserve

    0.33 km² overlap

  • ruetlischt

    IUCN IV

    Land acquired by a regional conservatory of natural areas

    0.25 km² overlap

  • Chöpfli

    IUCN Not Assigned

    Forest Reserves

    0.23 km² overlap

  • Riedholen

    IUCN Not Assigned

    Forest Reserves

    0.18 km² overlap

  • raemel

    IUCN IV

    Land acquired by a regional conservatory of natural areas

    0.17 km² overlap

  • Herzogenmatt

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.17 km² overlap

21 more protected areas

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

Species present

10 225 distinct species · 606 235 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

606 235 obs · 10 cellules
Obs. / cellule
≥ 162 225
162 225–162 224
75 753–162 224
53 644–75 752
< 53 644

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 33 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

Indicateurs du tissu écologique

Tissu écologique de Bassin de Birsig : 21 espèces reliées par 115 interactions GloBI sur 5 types (connectance 20.5%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
115
Connectance
0.205
Patrimoniales
0
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°

9,4°C

Annual rain

850mm

Moisture idx (CMI)

0,06

Runoff

637mm/an

PET

794mm

AET

644mm

Mean slope

5,7°

Water table

264cm

Forest

48%

Crops

15%

Urban

56%

Protected

1%

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