Ontologia

HydroBASINS lev08 watershed · #1080120900

Bassin de Oued N'sa

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 : N'Goussa, Ouargla, Sidi Khouiled

EndorheicPfafstetter: 15478020

Sub-basin area

691km²

Upstream area

691km²

Discharge

0,03m³/s

Mean elev.

142m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Oued N'sa4 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Chott Oum El Raneb

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    6.31 km² overlap

  • Chott Aïn El Beïda

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    1.54 km² overlap

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

Species present

13 distinct species · 25 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

25 obs · 5 cellules
Obs. / cellule
≥ 11
11–10
5–10
5–4
< 5

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

Ecological tissue

Sample of 8 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 N'sa : 8 espèces reliées par 5 interactions GloBI sur 2 types (connectance 17.9%, filtre Serrano α=0.2).

Espèces affichées
8
Interactions affichées
5
Connectance
0.179
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°

22,2°C

Annual rain

47mm

Moisture idx (CMI)

-0,97

Runoff

3mm/an

PET

1 726mm

AET

38mm

Mean slope

0,8°

Water table

237cm

Forest

0%

Crops

0%

Urban

1%

Protected

0%

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