Ontologia

HydroBASINS lev08 watershed · #1080029800

Bassin de Oued Sania

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 2 administrative regions : Fahs Anjra, Tanger-Assilah

Coastal basinPfafstetter: 15190009

Sub-basin area

268,7km²

Upstream area

268,7km²

Discharge

2,4m³/s

Mean elev.

81m

Administrative coverage

2 dept-equivalent regions (GADM L2)

5 intersecting protected areas

  • Tanger - Tahaddart - Assilah

    IUCN Not Applicable

    Permanent Hunting Reserve

    215.25 km² overlap

  • Complexe du Bas Tahaddart

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    22.62 km² overlap

  • Oued Tahaddart

    IUCN Not Applicable

    Biological and Ecological Interest Site

    22.15 km² overlap

  • Cap Spartel

    IUCN Not Applicable

    Biological and Ecological Interest Site

    8.22 km² overlap

  • Perdicaris

    IUCN Not Applicable

    Biological and Ecological Interest Site

    0.69 km² overlap

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

Species present

1 935 distinct species · 18 300 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

18 300 obs · 8 cellules
Obs. / cellule
≥ 6 348
6 348–6 347
3 316–6 347
2 064–3 315
< 2 064

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

Ecological tissue

Sample of 49 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 Sania : 37 espèces reliées par 97 interactions GloBI sur 5 types (connectance 8.2%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
49
Interactions affichées
97
Connectance
0.083
Patrimoniales
0
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°

17,7°C

Annual rain

773mm

Moisture idx (CMI)

-0,31

Runoff

286mm/an

PET

1 121mm

AET

610mm

Mean slope

4,8°

Water table

269cm

Forest

33%

Crops

52%

Urban

56%

Protected

11%

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