HydroBASINS lev08 watershed · #1080084010
Bassin de وادي مجردة ⴰⵙⵉⴼ ⵏ ⵎⵊⵔⴷⴰ
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 30 administrative regions across 2 countries : Ain Zana, Bougous, Dahouara, Drea, Fernana +25
Sub-basin area
2 578,4km²
Upstream area
2 578,6km²
Discharge
13,43m³/s
Mean elev.
623m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
30 dept-equivalent regions (GADM L2)
- 391.9 km²15.2% of basin
- 250.7 km²9.7% of basin
- 198.1 km²7.7% of basin
- 195.8 km²7.6% of basin
- 169.0 km²6.6% of basin
- 161.6 km²6.3% of basin
- 153.3 km²5.9% of basin
- 147.3 km²5.7% of basin
22 moreFull L2 list
- Ouled Moumen122.1 km² · 4.7%
- Ain Zana103.1 km² · 4.0%
- Ouled Driss99.6 km² · 3.9%
- Drea78.1 km² · 3.0%
- Machroha76.3 km² · 3.0%
- Tiffech74.7 km² · 2.9%
- Merahna66.2 km² · 2.6%
- Taoura52.2 km² · 2.0%
- Haddada48.3 km² · 1.9%
- Nebeur46.1 km² · 1.8%
- Souk Ahras44.5 km² · 1.7%
- Jendouba Sud36.5 km² · 1.4%
- Khemissa19.9 km² · 0.8%
- Fernana14.8 km² · 0.6%
- M'Daourouche13.3 km² · 0.5%
- Oued Cheham8.3 km² · 0.3%
- Ragouba4.5 km² · 0.2%
- Dahouara1.4 km² · 0.1%
- Hammam N'Bail0.6 km² · 0.0%
- Bougous0.3 km² · 0.0%
- Oued Kebrit0.1 km² · 0.0%
- Oued Zitoun0.0 km² · 0.0%
5 intersecting protected areas
El Feïja
IUCN Not AssignedNational Park
17.78 km² overlap
Dj. Ghorra
IUCN Not AssignedNature Reserve
10.03 km² overlap
Dj. Bent Hmed
IUCN Not AssignedNature Reserve
2.48 km² overlap
El Kala
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
0.21 km² overlap
El Kala
IUCN IINational Park
0.21 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
597 distinct species · 2 216 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 مجردة ⴰⵙⵉⴼ ⵏ ⵎⵊⵔⴷⴰ : 24 espèces reliées par 74 interactions GloBI sur 6 types (connectance 11.1%, filtre Serrano α=0.2). 13 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°
15,2°C
Annual rain
735mm
Moisture idx (CMI)
-0,43
Runoff
162mm/an
PET
1 304mm
AET
596mm
Mean slope
8,5°
Water table
442cm
Forest
25%
Crops
80%
Urban
4%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)