Ontologia

Rivière· 35 segments

Aller

Crosses 7 administrative regions : Börde, Celle, Gifhorn, Heidekreis, Helmstedt +2

rivière

Total length

264km

Max discharge

133,4m³/s

Max Strahler

6

Segments matched

35

River geography7 admin regions · 0 communes

Parent watershed

hybas-20803585307817 km²

7 administrative regions crossed (GADM L2)

  • Celle
    Niedersachsen · Germany
    54.3 km
    in this dpt
  • Börde
    Sachsen-Anhalt · Germany
    26.7 km
    in this dpt
  • Heidekreis
    Niedersachsen · Germany
    20.2 km
    in this dpt
  • Gifhorn
    Niedersachsen · Germany
    18.4 km
    in this dpt
  • Verden
    Niedersachsen · Germany
    8.0 km
    in this dpt
  • Wolfsburg
    Niedersachsen · Germany
    0.2 km
    in this dpt
  • Helmstedt
    Niedersachsen · Germany
    0.0 km
    in this dpt

30 intersecting protected areas

21 more protected areas

1 page = 1 named river (aggregation of 35 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 609 distinct species · 20 294 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 45 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 Aller : 37 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 129 interactions GloBI sur 6 types (connectance 12.5%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
46
Interactions affichées
129
Connectance
0.125
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

264km

Max discharge

133,4m³/s

Max Strahler

6

Segments matched

35

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