Ontologia

HydroBASINS lev08 watershed · #1080031730

Bassin de Oued Ain Torkya

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 4 administrative regions : Agareb, Menzel Chaker, Sfax Ouest, Sfax Sud

Pfafstetter: 15309020

Sub-basin area

523,4km²

Upstream area

523,5km²

Discharge

0,16m³/s

Mean elev.

106m

Administrative coverage

4 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Al Gounna

    IUCN Not Assigned

    Nature Reserve

    4.33 km² overlap

  • Salines de Thyna

    IUCN Not Reported

    Wetland Zone of National Importance

    0.16 km² overlap

  • Salines de Thyna

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    0.16 km² overlap

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

Species present

210 distinct species · 1 170 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 170 obs · 9 cellules
Obs. / cellule
≥ 1 099
1 099–1 098
14–1 098
10–13
< 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 29 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 Ain Torkya : 21 espèces reliées par 60 interactions GloBI sur 5 types (connectance 14.8%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
60
Connectance
0.148
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°

18,4°C

Annual rain

206mm

Moisture idx (CMI)

-0,83

Runoff

42mm/an

PET

1 211mm

AET

178mm

Mean slope

1,0°

Water table

378cm

Forest

0%

Crops

0%

Urban

7%

Protected

0%

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