Ontologia

Rivière· 7 segments

Niers

Crosses 5 administrative regions : Boxmeer, Cuijk, Gennep, Kleve, Viersen

rivière

Total length

119km

Max discharge

325,9m³/s

Max Strahler

6

Segments matched

7

River geography5 admin regions · 0 communes

Parent watershed

hybas-20803856501610 km²

5 administrative regions crossed (GADM L2)

  • Kleve
    Nordrhein-Westfalen · Germany
    28.2 km
    in this dpt
  • Viersen
    Nordrhein-Westfalen · Germany
    9.1 km
    in this dpt
  • Boxmeer
    Noord-Brabant · Netherlands
    5.4 km
    in this dpt
  • Gennep
    Limburg · Netherlands
    0.0 km
    in this dpt
  • Cuijk
    Noord-Brabant · Netherlands
    0.0 km
    in this dpt

30 intersecting protected areas

21 more protected areas

1 page = 1 named river (aggregation of 7 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

2 363 distinct species · 17 820 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 Niers : 37 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 69 interactions GloBI sur 5 types (connectance 7.0%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
45
Interactions affichées
69
Connectance
0.070
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

119km

Max discharge

325,9m³/s

Max Strahler

6

Segments matched

7

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