HydroBASINS lev08 watershed · #1080757790
Bassin de Arli
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 2 administrative regions across 2 countries : Tanguiéta, Tapoa
Sub-basin area
285,7km²
Upstream area
6 064,6km²
Discharge
7,37m³/s
Mean elev.
200m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Moribonga1351 km²
- Bassin de Doubodo441 km²
2 dept-equivalent regions (GADM L2)
- 283.7 km²99.7% of basin
- 0.9 km²0.3% of basin
6 intersecting protected areas
Parc National d'Arly
IUCN IIWetland of International Importance (Ramsar Site)
235.53 km² overlap
Arly
IUCN IINational Park
234.64 km² overlap
W-Arly-Pendjari Complex
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
224.86 km² overlap
Wetland of International Importance (Ramsar Site)
1.64 km² overlap
Pagou-Tandougou
IUCN Not ReportedGame Reserve
0.61 km² overlap
Boucle de la Pendjari
IUCN IINational Park
0.37 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
341 distinct species · 1 021 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Arli : 25 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) + 3 bulles famille, 32 interactions GloBI documentées sur 3 types (connectance 8.5%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
28,4°C
Annual rain
864mm
Moisture idx (CMI)
-0,57
Runoff
101mm/an
PET
2 026mm
AET
730mm
Mean slope
1,1°
Water table
118cm
Forest
3%
Crops
11%
Urban
1%
Protected
60%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)