Ontologia

HydroBASINS lev08 watershed · #2080499980

Bassin de Aare

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 11 administrative regions : Aarwangen, Burgdorf, Fraubrunnen, Gäu, Lebern +6

Pfafstetter: 23268057

Sub-basin area

557,8km²

Upstream area

9 936km²

Discharge

259,2m³/s

Mean elev.

575m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Mühletych19 km²

▲ Receives from 2 basins

11 dept-equivalent regions (GADM L2)

3 more
  • Gäu16.8 km² · 3.0%
  • Olten10.8 km² · 1.9%
  • Fraubrunnen3.1 km² · 0.6%

30 intersecting protected areas

21 more protected areas

  • Holzmatt/Dälebann

    IUCN Not Assigned

    Forest Reserves

    0.22 km² overlap

  • Vogelraupfi

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.16 km² overlap

  • Aare bei Solothurn und Naturschutzreservat Aare Flumenthal (SO)

    IUCN IV

    Federal Inventory of Reserves for Waterbirds and Migratory Birds of International and National Imp.

    0.15 km² overlap

  • Erlenschachen

    IUCN Not Assigned

    Private Nature Reserves

    0.14 km² overlap

  • Erlenschachen

    IUCN Not Assigned

    Forest Reserves

    0.14 km² overlap

  • Chli Aarli

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.13 km² overlap

  • Brunnenkresse

    IUCN Not Assigned

    Private Nature Reserves

    0.12 km² overlap

  • Unter Balmberg

    IUCN Not Assigned

    Forest Reserves

    0.11 km² overlap

  • Alte Kiesgrube Schwarzhäusern

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.11 km² overlap

  • Buechrain

    IUCN Not Assigned

    Forest Reserves

    0.09 km² overlap

  • Stockmösli

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.09 km² overlap

  • Schmittenweiher

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.09 km² overlap

  • Buechmatt

    IUCN IV

    Federal Inventory of Dry Grasslands and Pastures of National Importance

    0.08 km² overlap

  • Schachen

    IUCN Not Assigned

    Forest Reserves

    0.08 km² overlap

  • Waldreservat Steihöli -Steibächli

    IUCN Not Assigned

    Forest Reserves

    0.08 km² overlap

  • Zinsibrunnen

    IUCN Not Assigned

    Forest Reserves

    0.07 km² overlap

  • Mumenthaler Weiher

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.06 km² overlap

  • Chamben

    IUCN Not Assigned

    Forest Reserves

    0.06 km² overlap

  • Möösli - Geissweierhubel

    IUCN Not Assigned

    Forest Reserves

    0.05 km² overlap

  • Chlepfibeerimoos (15004)

    IUCN Not Assigned

    Private Nature Reserves

    0.05 km² overlap

  • Erlimoos

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

    0.05 km² overlap

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

Species present

9 928 distinct species · 549 746 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

549 746 obs · 30 cellules
Obs. / cellule
≥ 75 314
37 984–75 313
20 239–37 983
13 896–20 238
< 13 896

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

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

Indicateurs du tissu écologique

Tissu écologique de Bassin de Aare : 8 espèces reliées par 281 interactions GloBI sur 5 types (connectance 22.9%, filtre Serrano α=0.2). 42 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
50
Interactions affichées
281
Connectance
0.229
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°

8,5°C

Annual rain

1 013mm

Moisture idx (CMI)

0,25

Runoff

740mm/an

PET

752mm

AET

680mm

Mean slope

5,9°

Water table

223cm

Forest

61%

Crops

11%

Urban

16%

Protected

21%

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