HydroBASINS lev08 watershed · #6080009130
Bassin de Rio Aurá
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 9 administrative regions : Alcântara, Bacurituba, Bequimão, Cajapió, Palmeirândia +4
Sub-basin area
1 193,5km²
Upstream area
1 193,5km²
Discharge
22,06m³/s
Mean elev.
11m
Administrative coverage
9 dept-equivalent regions (GADM L2)
- 272.1 km²22.9% of basin
- 232.5 km²19.6% of basin
- 196.6 km²16.5% of basin
- 167.9 km²14.1% of basin
- 126.2 km²10.6% of basin
- 82.0 km²6.9% of basin
- 68.5 km²5.8% of basin
- 42.1 km²3.5% of basin
1 moreFull L2 list
- São João Batista0.4 km² · 0.0%
4 intersecting protected areas
Wetland of International Importance (Ramsar Site)
1184.21 km² overlap
Environmental Protection Area
1183.97 km² overlap
Environmental Protection Area
4.23 km² overlap
Reentrancias Maranhenses
IUCN VWetland of International Importance (Ramsar Site)
3.99 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
396 distinct species · 813 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Aurá : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 27 interactions GloBI sur 5 types (connectance 6.7%, filtre Serrano α=0.2). 7 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°
27,2°C
Annual rain
1 820mm
Moisture idx (CMI)
0,09
Runoff
981mm/an
PET
1 660mm
AET
1 134mm
Mean slope
0,8°
Water table
21cm
Forest
70%
Crops
7%
Urban
1%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)