Ontologia

Ruisseau· 2 segments

Leugene

Crosses 4 administrative regions : Biel, Büren, Lebern, Nidau

ruisseau

Total length

9km

Max discharge

1,1m³/s

Max Strahler

2

Segments matched

2

River geography4 admin regions · 0 communes

Parent watershed

hybas-2080502730570 km²

4 administrative regions crossed (GADM L2)

  • Büren
    Bern · Switzerland
    8.4 km
    in this dpt
  • Biel
    Bern · Switzerland
    0.6 km
    in this dpt
  • Nidau
    Bern · Switzerland
    0.2 km
    in this dpt
  • Lebern
    Solothurn · Switzerland
    0.0 km
    in this dpt

7 intersecting protected areas

  • Grenchner Witi

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

  • Witi (BE,SO)

    IUCN IV

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

  • Altwässer der Aare und der Zihl

    IUCN IV

    Federal Inventory of Alluvial Zones of National Importance

  • Häftli bei Büren (BE)

    IUCN IV

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

  • Altwasser

    IUCN IV

    Federal Inventory of Fenlands of National Importance

  • Reservat Gryfeberg

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

  • Lehmgrube Greuschenhubel

    IUCN IV

    Federal Inventory of Amphibian Spawning Areas of National Importance

1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

2 995 distinct species · 20 987 observations

Source: GBIF Occurrence snapshot 2026-05-01.

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 Leugene : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 134 interactions GloBI sur 6 types (connectance 25.4%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
134
Connectance
0.254
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)

Total length

9km

Max discharge

1,1m³/s

Max Strahler

2

Segments matched

2

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.