Ontologia

Rivière· 4 segments

Untergraben

Crosses 6 administrative regions : Dortmund, Hagen, Hochsauerlandkreis, Märkischer Kreis, Olpe +1

rivière

Total length

9km

Max discharge

27,5m³/s

Max Strahler

4

Segments matched

4

River geography6 admin regions · 0 communes

Parent watershed

hybas-20803938201351 km²

6 administrative regions crossed (GADM L2)

  • Märkischer Kreis
    Nordrhein-Westfalen · Germany
    6.7 km
    in this dpt
  • Hochsauerlandkreis
    Nordrhein-Westfalen · Germany
    5.6 km
    in this dpt
  • Olpe
    Nordrhein-Westfalen · Germany
    4.5 km
    in this dpt
  • Unna
    Nordrhein-Westfalen · Germany
    2.9 km
    in this dpt
  • Dortmund
    Nordrhein-Westfalen · Germany
    1.1 km
    in this dpt
  • Hagen
    Nordrhein-Westfalen · Germany
    0.5 km
    in this dpt

30 intersecting protected areas

21 more protected areas

1 page = 1 named river (aggregation of 4 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 148 distinct species · 3 442 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 36 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 Untergraben : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 138 interactions GloBI sur 6 types (connectance 18.6%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
138
Connectance
0.186
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

27,5m³/s

Max Strahler

4

Segments matched

4

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