HydroBASINS lev08 watershed · #6080296060
Bassin de Rio Gentil
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 5 administrative regions : Altamira do Maranhão, Alto Alegre do Pindaré, Santa Inês, Santa Luzia, Tufilândia
Sub-basin area
1 130,2km²
Upstream area
9 599,1km²
Discharge
106,72m³/s
Mean elev.
49m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Gentil2575 km²
- Bassin de Igarapé da Apuá1647 km²
5 dept-equivalent regions (GADM L2)
- 867.0 km²77.1% of basin
- 196.7 km²17.5% of basin
- 58.5 km²5.2% of basin
- 1.6 km²0.1% of basin
- 1.4 km²0.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
141 distinct species · 281 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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 Rio Gentil : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 19 interactions GloBI sur 3 types (connectance 7.5%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
27,2°C
Annual rain
1 718mm
Moisture idx (CMI)
-0,02
Runoff
436mm/an
PET
1 762mm
AET
1 140mm
Mean slope
1,9°
Water table
54cm
Forest
18%
Crops
3%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)