Ontologia

HydroBASINS lev08 watershed · #2080385760

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 7 administrative regions : Bergen, Boxmeer, Deurne, Gennep, Horst aan de Maas +2

9% lakePfafstetter: 23250835

Sub-basin area

281,4km²

Upstream area

26 655km²

Discharge

325,95m³/s

Mean elev.

21m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Kleine Beek232 km²

▲ Receives from 2 basins

7 dept-equivalent regions (GADM L2)

14 intersecting protected areas

  • NNN-LI

    IUCN Not Assigned

    Nature Reserves owned by professional nature management organizations

    53.41 km² overlap

  • NNN-NB

    IUCN Not Assigned

    Nature Reserves owned by professional nature management organizations

    22.89 km² overlap

  • Maasduinen

    IUCN IV

    Nature Conservation Act

    22.00 km² overlap

  • Maasduinen

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    22.00 km² overlap

  • Maasduinen

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    22.00 km² overlap

  • De Maasduinen

    IUCN II

    National Park

    21.05 km² overlap

  • Boschhuizerbergen

    IUCN IV

    Nature Conservation Act

    2.77 km² overlap

  • Boschhuizerbergen

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    2.77 km² overlap

  • Deurnsche Peel & Mariapeel

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    0.76 km² overlap

5 more protected areas

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

Species present

9 909 distinct species · 1 087 483 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 087 483 obs · 17 cellules
Obs. / cellule
≥ 197 416
105 416–197 415
90 468–105 415
39 663–90 467
< 39 663

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

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 Bassin de Maas : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 96 interactions GloBI sur 6 types (connectance 15.2%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
96
Connectance
0.152
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°

9,8°C

Annual rain

768mm

Moisture idx (CMI)

0,06

Runoff

397mm/an

PET

724mm

AET

560mm

Mean slope

0,3°

Water table

22cm

Forest

4%

Crops

35%

Urban

15%

Protected

9%

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