HydroBASINS lev08 watershed · #6080367030
Bassin de Rio Tocantins
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 11 administrative regions : Aguiarnópolis, Angico, Campestre do Maranhão, Luzinópolis, Nazaré +6
Sub-basin area
2 388,7km²
Upstream area
291 188,6km²
Discharge
4 227,18m³/s
Mean elev.
229m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Tocantins2621 km²
- Bassin de Rio Tocantins1297 km²
11 dept-equivalent regions (GADM L2)
- 946.1 km²39.8% of basin
- 619.5 km²26.0% of basin
- 267.1 km²11.2% of basin
- 187.1 km²7.9% of basin
- 127.1 km²5.3% of basin
- 99.4 km²4.2% of basin
- 92.5 km²3.9% of basin
- 26.5 km²1.1% of basin
3 moreFull L2 list
- Angico10.7 km² · 0.4%
- Luzinópolis2.4 km² · 0.1%
- Ribamar Fiquene0.1 km² · 0.0%
1 intersecting protected areas
Apinayé
IUCN Not ReportedIndigenous Area
499.92 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
533 distinct species · 1 964 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Tocantins : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 44 interactions GloBI sur 5 types (connectance 5.1%, filtre Serrano α=0.2). 10 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°
25,1°C
Annual rain
1 552mm
Moisture idx (CMI)
-0,14
Runoff
724mm/an
PET
1 815mm
AET
1 166mm
Mean slope
2,5°
Water table
138cm
Forest
13%
Crops
6%
Urban
1%
Protected
21%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)