Ontologia

Rivière· 6 segments

Volme

Crosses 5 administrative regions : Dortmund, Ennepe-Ruhr-Kreis, Hagen, Märkischer Kreis, Unna

rivière

Total length

51km

Max discharge

44,4m³/s

Max Strahler

5

Segments matched

6

River geography5 admin regions · 0 communes

Parent watershed

hybas-2080394470427 km²

5 administrative regions crossed (GADM L2)

  • Hagen
    Nordrhein-Westfalen · Germany
    10.3 km
    in this dpt
  • Märkischer Kreis
    Nordrhein-Westfalen · Germany
    8.5 km
    in this dpt
  • Dortmund
    Nordrhein-Westfalen · Germany
    1.6 km
    in this dpt
  • Ennepe-Ruhr-Kreis
    Nordrhein-Westfalen · Germany
    0.0 km
    in this dpt
  • Unna
    Nordrhein-Westfalen · Germany
    0.0 km
    in this dpt

30 intersecting protected areas

21 more protected areas

1 page = 1 named river (aggregation of 6 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 087 distinct species · 4 318 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 40 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 Volme : 31 espèces reliées par 121 interactions GloBI sur 7 types (connectance 14.8%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
121
Connectance
0.148
Patrimoniales
0
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

51km

Max discharge

44,4m³/s

Max Strahler

5

Segments matched

6

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