Ontologia

HydroBASINS lev08 watershed · #1080083960

Bassin de Oued Siliana

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 : Bargou, Bouarada, Bourouis, El Krib, Gaafour +10

3% lakePfafstetter: 15306020

Sub-basin area

2 198,5km²

Upstream area

2 198,5km²

Discharge

5,09m³/s

Mean elev.

521m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de مجردة2438 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

15 dept-equivalent regions (GADM L2)

7 more

4 intersecting protected areas

  • Dj. Serj

    IUCN Not Assigned

    National Park

    14.92 km² overlap

  • Ain Dahab

    IUCN Not Reported

    Wetland Zone of National Importance

    9.49 km² overlap

  • Ain Dahab

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    9.49 km² overlap

  • Djebel Serj

    IUCN Not Assigned

    Nature Reserve

    0.91 km² overlap

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

Species present

252 distinct species · 1 698 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 698 obs · 40 cellules
Obs. / cellule
≥ 677
130–676
19–129
10–18
< 10

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

Ecological tissue

Sample of 28 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 Siliana : 22 espèces reliées par 44 interactions GloBI sur 4 types (connectance 10.8%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
44
Connectance
0.108
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°

16,4°C

Annual rain

476mm

Moisture idx (CMI)

-0,65

Runoff

73mm/an

PET

1 353mm

AET

404mm

Mean slope

4,7°

Water table

430cm

Forest

7%

Crops

82%

Urban

2%

Protected

0%

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