Ontologia

HydroBASINS lev08 watershed · #1080090090

Bassin de Oued Maittar

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 15 administrative regions : Benzouh, Bir Foda, Bou Saada, Chellal, Djebel Messaad +10

EndorheicPfafstetter: 15490380

Sub-basin area

1 815,4km²

Upstream area

1 815,6km²

Discharge

0,2m³/s

Mean elev.

944m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de واد الكراطسية2723 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

15 dept-equivalent regions (GADM L2)

7 more

2 intersecting protected areas

  • Atlas Saharien

    IUCN Not Applicable

    Cultural Park

    1795.09 km² overlap

  • Chott el Hodna

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    36.76 km² overlap

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

Species present

184 distinct species · 381 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

381 obs · 27 cellules
Obs. / cellule
≥ 170
35–169
10–34
4–9
< 4

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 Oued Maittar : 27 espèces reliées par 66 interactions GloBI sur 5 types (connectance 9.9%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
66
Connectance
0.099
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°

14,1°C

Annual rain

272mm

Moisture idx (CMI)

-0,78

Runoff

17mm/an

PET

1 249mm

AET

234mm

Mean slope

4,2°

Water table

606cm

Forest

0%

Crops

0%

Urban

2%

Protected

1%

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