Ontologia

Rivière· 2 segments

Wümme - Mittelarm

Crosses 2 administrative regions : Bremen, Verden

rivière

Total length

13km

Max discharge

16m³/s

Max Strahler

4

Segments matched

2

River geography2 admin regions · 0 communes

Parent watershed

hybas-20803476802063 km²

2 administrative regions crossed (GADM L2)

  • Verden
    Niedersachsen · Germany
    7.0 km
    in this dpt
  • Bremen
    Bremen · Germany
    0.0 km
    in this dpt

8 intersecting protected areas

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

Species present

853 distinct species · 2 905 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 37 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 Wümme - Mittelarm : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 96 interactions GloBI sur 6 types (connectance 13.7%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
96
Connectance
0.137
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

13km

Max discharge

16,0m³/s

Max Strahler

4

Segments matched

2

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