Ontologia

Ruisseau· 4 segments

Schwalm

Crosses 3 administrative regions : Heinsberg, Mönchengladbach, Viersen

ruisseau

Total length

135km

Max discharge

2,5m³/s

Max Strahler

3

Segments matched

4

River geography3 admin regions · 0 communes

Parent watershed

hybas-2080397730267 km²

3 administrative regions crossed (GADM L2)

  • Viersen
    Nordrhein-Westfalen · Germany
    5.8 km
    in this dpt
  • Heinsberg
    Nordrhein-Westfalen · Germany
    3.7 km
    in this dpt
  • Mönchengladbach
    Nordrhein-Westfalen · Germany
    0.4 km
    in this dpt

22 intersecting protected areas

13 more protected areas

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

Species present

944 distinct species · 3 066 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 Schwalm : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 132 interactions GloBI sur 6 types (connectance 16.1%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
132
Connectance
0.161
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

135km

Max discharge

2,5m³/s

Max Strahler

3

Segments matched

4

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