Ontologia

HydroBASINS lev08 watershed · #1080178010

Bassin de Oued Drâa ⴰⵙⵉⴼ ⵏ ⴷⵔⵄⴰ واد درعة

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 across 2 countries : Oum El Assel, Tata

Pfafstetter: 15140399

Sub-basin area

570,6km²

Upstream area

47 902,2km²

Discharge

144,39m³/s

Mean elev.

449m

Administrative coverage

Hydrographic chain

2 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Oued Draa

    IUCN Not Applicable

    Permanent Hunting Reserve

    569.90 km² overlap

  • Oasis de Tissint

    IUCN Not Applicable

    Biological and Ecological Interest Site

    58.97 km² overlap

  • Tindouf

    IUCN Not Applicable

    Cultural Park

    0.42 km² overlap

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

Species present

11 distinct species · 14 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

14 obs · 8 cellules
Obs. / cellule
≥ 3
3–2
3–2
1–2
< 1

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

Ecological tissue

Sample of 4 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 Drâa ⴰⵙⵉⴼ ⵏ ⴷⵔⵄⴰ واد درعة : 4 espèces reliées par 2 interactions GloBI sur 2 types (connectance 33.3%, filtre Serrano α=0.2).

Espèces affichées
4
Interactions affichées
2
Connectance
0.333
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°

22,9°C

Annual rain

95mm

Moisture idx (CMI)

-0,95

Runoff

43mm/an

PET

1 881mm

AET

78mm

Mean slope

1,6°

Water table

315cm

Forest

0%

Crops

0%

Urban

0%

Protected

100%

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