Ontologia

HydroBASINS lev08 watershed · #2080385650

Bassin de Niers

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 12 administrative regions across 2 countries : Bergen, Boxmeer, Düren, Gennep, Heinsberg +7

5% lakePfafstetter: 23250834

Sub-basin area

1 610,4km²

Upstream area

1 610,5km²

Discharge

17,59m³/s

Mean elev.

40m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Kleine Beek232 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

12 dept-equivalent regions (GADM L2)

4 more

30 intersecting protected areas

21 more protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

8 755 distinct species · 706 756 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

706 756 obs · 51 cellules
Obs. / cellule
≥ 86 560
39 708–86 559
8 391–39 707
5 806–8 390
< 5 806

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 38 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 Bassin de Niers : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 95 interactions GloBI sur 6 types (connectance 12.8%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
95
Connectance
0.128
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

10,0°C

Annual rain

786mm

Moisture idx (CMI)

0,06

Runoff

342mm/an

PET

742mm

AET

574mm

Mean slope

0,5°

Water table

30cm

Forest

4%

Crops

46%

Urban

40%

Protected

37%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)