HydroBASINS lev08 watershed · #1080684500
Bassin de Mayél Samou
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 : Goudiry, Tambacounda
Sub-basin area
65,8km²
Upstream area
2 327,4km²
Discharge
3,81m³/s
Mean elev.
51m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Mayél Samou712 km²
- Bassin de Kouyon-Ko252 km²
2 dept-equivalent regions (GADM L2)
- TambacoundaTambacounda · Senegal52.1 km²79.4% of basin
- 13.5 km²20.6% of basin
3 intersecting protected areas
National Park
11.33 km² overlap
Niokolo-Koba National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
9.56 km² overlap
Parc national du Niokolo-Koba
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
9.56 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
78 distinct species · 121 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 3 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 Mayél Samou : 3 espèces reliées par 2 interactions GloBI sur 1 type (connectance 66.7%, filtre Serrano α=0.2).
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
838mm
Moisture idx (CMI)
-0,58
Runoff
65mm/an
PET
2 019mm
AET
707mm
Mean slope
0,7°
Water table
99cm
Forest
19%
Crops
2%
Urban
0%
Protected
14%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)