HydroBASINS lev08 watershed · #6080305040
Bassin de Igarapé da Apuá
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, Brejo de Areia, Marajá do Sena, Paulo Ramos, Santa Luzia
Sub-basin area
1 646,6km²
Upstream area
5 894,8km²
Discharge
68,71m³/s
Mean elev.
133m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #60803191301054 km²
- Bassin · #6080319140454 km²
5 dept-equivalent regions (GADM L2)
- 943.5 km²57.6% of basin
- 610.7 km²37.3% of basin
- 62.2 km²3.8% of basin
- 13.7 km²0.8% of basin
- 9.2 km²0.6% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
47 distinct species · 93 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 15 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 Igarapé da Apuá : 12 espèces reliées par 14 interactions GloBI sur 1 type (connectance 13.3%, filtre Serrano α=0.2). 3 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°
26,7°C
Annual rain
1 547mm
Moisture idx (CMI)
-0,12
Runoff
415mm/an
PET
1 762mm
AET
1 088mm
Mean slope
6,0°
Water table
226cm
Forest
24%
Crops
17%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)