HydroBASINS lev08 watershed · #1080031230
Bassin de وادي بني عطاء
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 : Bizerte Nord, El Alia, Ghar El Melh, Kalaat El Andalous, Mateur +5
Sub-basin area
579,8km²
Upstream area
579,8km²
Discharge
0,64m³/s
Mean elev.
71m
Administrative coverage
10 dept-equivalent regions (GADM L2)
- 116.3 km²20.0% of basin
- 110.5 km²19.0% of basin
- 89.1 km²15.4% of basin
- 81.3 km²14.0% of basin
- 76.6 km²13.2% of basin
- 54.9 km²9.5% of basin
- 10.7 km²1.8% of basin
- 6.3 km²1.1% of basin
2 moreFull L2 list
- Tinja0.7 km² · 0.1%
- Bizerte Nord0.0 km² · 0.0%
2 intersecting protected areas
Lagune de Ghar El Melh et delta de la medjerda
IUCN Not ReportedWetland Zone of National Importance
8.74 km² overlap
Lagune de Ghar El Melh et delta de la medjerda
IUCN Not ReportedWetland of International Importance (Ramsar Site)
8.74 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
657 distinct species · 2 977 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 وادي بني عطاء : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 45 interactions GloBI sur 2 types (connectance 8.5%, filtre Serrano α=0.2). 8 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°
17,6°C
Annual rain
503mm
Moisture idx (CMI)
-0,57
Runoff
148mm/an
PET
1 179mm
AET
427mm
Mean slope
3,6°
Water table
310cm
Forest
16%
Crops
73%
Urban
16%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)