HydroBASINS lev08 watershed · #6080009050
Bassin de Rio Raimundo Sul
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 6 administrative regions : Alcântara, Bacurituba, Bequimão, Central do Maranhão, Guimarães +1
Sub-basin area
1 453,5km²
Upstream area
1 453,5km²
Discharge
4,18m³/s
Mean elev.
22m
Administrative coverage
6 dept-equivalent regions (GADM L2)
- 1062.9 km²73.5% of basin
- 355.4 km²24.6% of basin
- 0.5 km²0.0% of basin
- 0.3 km²0.0% of basin
- 0.2 km²0.0% of basin
- 0.0 km²0.0% of basin
5 intersecting protected areas
Environmental Protection Area
1379.83 km² overlap
Reentrancias Maranhenses
IUCN VWetland of International Importance (Ramsar Site)
1378.49 km² overlap
Extractive Reserve
142.36 km² overlap
Wetland of International Importance (Ramsar Site)
68.60 km² overlap
Environmental Protection Area
67.26 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
338 distinct species · 940 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Raimundo Sul : 30 espèces reliées par 44 interactions GloBI sur 5 types (connectance 5.9%, filtre Serrano α=0.2). 9 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°
27,0°C
Annual rain
1 940mm
Moisture idx (CMI)
0,19
Runoff
1 003mm/an
PET
1 570mm
AET
1 107mm
Mean slope
1,8°
Water table
50cm
Forest
62%
Crops
4%
Urban
1%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)