Ontologia

HydroBASINS lev08 watershed · #1080029550

Bassin de Oued Mellah

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 3 administrative regions : Ben Slimane, Casablanca, Mohammedia

Pfafstetter: 15170041

Sub-basin area

22,1km²

Upstream area

3 804,8km²

Discharge

4,9m³/s

Mean elev.

40m

Administrative coverage

Hydrographic chain

▼ Drains into

Outlet (drains to ocean / endorheic)

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

84 distinct species · 479 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

479 obs · 1 cellules
Obs. / cellule
≥ 479
479–478
479–478
479–478
< 479

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 Oued Mellah : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 40 interactions GloBI sur 6 types (connectance 7.6%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
40
Connectance
0.076
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°

17,9°C

Annual rain

428mm

Moisture idx (CMI)

-0,65

Runoff

64mm/an

PET

1 221mm

AET

365mm

Mean slope

2,4°

Water table

203cm

Forest

0%

Crops

67%

Urban

86%

Protected

0%

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