Ontologia

HydroBASINS lev08 watershed · #2080385070

Bassin de Maas

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 : 's-Hertogenbosch, Bernheze, Beuningen, Druten, Grave +7

21% lakePfafstetter: 23250831

Sub-basin area

275,4km²

Upstream area

28 961,4km²

Discharge

353,9m³/s

Mean elev.

6m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Bergsche Maas729 km²

▲ Receives from 2 basins

12 dept-equivalent regions (GADM L2)

4 more

4 intersecting protected areas

  • NNN-NB

    IUCN Not Assigned

    Nature Reserves owned by professional nature management organizations

    34.14 km² overlap

  • NNN-GE

    IUCN Not Assigned

    Nature Reserves owned by professional nature management organizations

    15.38 km² overlap

  • Rijntakken

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.00 km² overlap

  • Rijntakken

    IUCN IV

    Nature Conservation Act

    0.00 km² overlap

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

Species present

7 838 distinct species · 871 826 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

871 826 obs · 10 cellules
Obs. / cellule
≥ 235 473
235 473–235 472
100 469–235 472
90 347–100 468
< 90 347

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

Ecological tissue

Sample of 33 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 Maas : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 115 interactions GloBI sur 6 types (connectance 21.8%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
115
Connectance
0.218
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°

9,4°C

Annual rain

777mm

Moisture idx (CMI)

0,09

Runoff

466mm/an

PET

705mm

AET

547mm

Mean slope

0,1°

Water table

7cm

Forest

2%

Crops

20%

Urban

31%

Protected

0%

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