HydroBASINS lev08 watershed · #6080146580
Bassin de Rio Surumu
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 3 administrative regions : Boa Vista, Normandia, Pacaraima
Sub-basin area
1 332,6km²
Upstream area
12 731,8km²
Discharge
283,61m³/s
Mean elev.
92m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin · #6080139940721 km²
- Bassin de Rio Surumu88 km²
3 dept-equivalent regions (GADM L2)
- 630.1 km²47.5% of basin
- 443.1 km²33.4% of basin
- 253.5 km²19.1% of basin
2 intersecting protected areas
São Marcos - RR
IUCN Not ReportedIndigenous Area
686.33 km² overlap
Raposa Serra do Sol
IUCN Not ReportedIndigenous Area
631.22 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
59 distinct species · 89 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 14 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 Surumu : 13 espèces reliées par 10 interactions GloBI sur 3 types (connectance 11.0%, 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 368mm
Moisture idx (CMI)
-0,21
Runoff
556mm/an
PET
1 733mm
AET
1 026mm
Mean slope
0,4°
Water table
20cm
Forest
1%
Crops
2%
Urban
0%
Protected
99%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)