HydroBASINS lev08 watershed · #2081009330
Bassin · #2081009330
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 7 administrative regions : Ad Dhale'e, Al Hussein, An Nadirah, Ash Shu'ayb, Damt +2
Sub-basin area
722,7km²
Upstream area
722,7km²
Discharge
1,84m³/s
Mean elev.
1 583m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- 331.2 km²46.0% of basin
- 184.6 km²25.6% of basin
- 121.6 km²16.9% of basin
- 27.3 km²3.8% of basin
- An NadirahIbb · Yemen25.1 km²3.5% of basin
- 23.4 km²3.3% of basin
- 6.8 km²0.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
33 distinct species · 267 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 5 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 · #2081009330 : 4 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 5 interactions GloBI sur 4 types (connectance 33.3%, filtre Serrano α=0.2). 2 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°
21,0°C
Annual rain
356mm
Moisture idx (CMI)
-0,80
Runoff
81mm/an
PET
1 774mm
AET
299mm
Mean slope
10,4°
Water table
714cm
Forest
0%
Crops
13%
Urban
15%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)