Ontologia

HydroBASINS lev08 watershed · #1080030410

Bassin de Oued Aîn Safra

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 10 administrative regions : Ain Boudinar, Ain Tedles, Fornaka, Hassi Mameche, Kheiredine +5

Coastal basinPfafstetter: 15303900

Sub-basin area

256,5km²

Upstream area

256,5km²

Discharge

0,05m³/s

Mean elev.

154m

Administrative coverage

10 dept-equivalent regions (GADM L2)

2 more

1 intersecting protected areas

  • Marais de la Macta

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    0.18 km² overlap

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

Species present

444 distinct species · 3 982 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 982 obs · 8 cellules
Obs. / cellule
≥ 1 106
1 106–1 105
773–1 105
731–772
< 731

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

Ecological tissue

Sample of 30 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 Aîn Safra : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 50 interactions GloBI sur 4 types (connectance 11.5%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
50
Connectance
0.115
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°

17,7°C

Annual rain

365mm

Moisture idx (CMI)

-0,63

Runoff

19mm/an

PET

974mm

AET

316mm

Mean slope

2,8°

Water table

431cm

Forest

1%

Crops

51%

Urban

39%

Protected

6%

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