HydroBASINS lev08 watershed · #1080031300
Bassin de مجردة
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 27 administrative regions : Ariana Médina, Bab Bhar, Bab Souika, Ben Arous, Bouhaira +22
Sub-basin area
494,5km²
Upstream area
494,5km²
Discharge
0,08m³/s
Mean elev.
16m
Administrative coverage
27 dept-equivalent regions (GADM L2)
- 104.4 km²21.1% of basin
- 59.3 km²12.0% of basin
- 37.8 km²7.6% of basin
- 36.2 km²7.3% of basin
- 32.4 km²6.6% of basin
- 20.3 km²4.1% of basin
- 17.6 km²3.6% of basin
- 13.1 km²2.6% of basin
19 moreFull L2 list
- Bouhaira12.5 km² · 2.5%
- Mnihla12.4 km² · 2.5%
- Carthage10.2 km² · 2.1%
- Radès10.0 km² · 2.0%
- Mégrine8.6 km² · 1.7%
- La Goulette8.2 km² · 1.6%
- Ben Arous6.6 km² · 1.3%
- El Menzah6.6 km² · 1.3%
- El Ouardia4.6 km² · 0.9%
- Omrane3.4 km² · 0.7%
- Jebel Jelloud3.2 km² · 0.6%
- Bab Bhar3.1 km² · 0.6%
- Nouvelle Médina3.0 km² · 0.6%
- Kabaria2.6 km² · 0.5%
- Sidi El Béchir2.3 km² · 0.5%
- Bab Souika1.9 km² · 0.4%
- Médina1.3 km² · 0.3%
- El Mourouj0.2 km² · 0.0%
- Sijoumi0.2 km² · 0.0%
6 intersecting protected areas
Complexe lac de Tunis
IUCN Not ReportedWetland of International Importance (Ramsar Site)
35.44 km² overlap
Complexe lac de Tunis
IUCN Not ReportedWetland Zone of National Importance
35.44 km² overlap
Lagune de Ghar El Melh et delta de la medjerda
IUCN Not ReportedWetland Zone of National Importance
1.00 km² overlap
Lagune de Ghar El Melh et delta de la medjerda
IUCN Not ReportedWetland of International Importance (Ramsar Site)
1.00 km² overlap
Jardin botanique de Tunis
IUCN Not AssignedNature Reserve
0.08 km² overlap
Îles Chîkly
IUCN Not AssignedNature Reserve
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 506 distinct species · 11 239 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de مجردة : 26 espèces reliées par 42 interactions GloBI sur 2 types (connectance 9.0%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
18,0°C
Annual rain
448mm
Moisture idx (CMI)
-0,63
Runoff
115mm/an
PET
1 218mm
AET
381mm
Mean slope
1,1°
Water table
101cm
Forest
0%
Crops
32%
Urban
64%
Protected
34%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)