HydroBASINS lev08 watershed · #6080008400
Bassin de Rio Sampaio
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 : Maracanã, Primavera, Quatipuru, Salinópolis, São João de Pirabas
Sub-basin area
825,6km²
Upstream area
825,6km²
Discharge
19,07m³/s
Mean elev.
16m
Administrative coverage
5 dept-equivalent regions (GADM L2)
- 484.8 km²59.0% of basin
- 182.6 km²22.2% of basin
- 112.9 km²13.7% of basin
- 8.8 km²1.1% of basin
- 1.0 km²0.1% of basin
5 intersecting protected areas
Wetland of International Importance (Ramsar Site)
411.02 km² overlap
Extractive Reserve
211.80 km² overlap
Extractive Reserve
72.73 km² overlap
Extractive Reserve
8.01 km² overlap
Monumento Natural Atalaia
IUCN IIINatural Monument
2.17 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
461 distinct species · 1 833 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Sampaio : 26 espèces reliées par 42 interactions GloBI sur 3 types (connectance 6.7%, 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°
26,4°C
Annual rain
2 769mm
Moisture idx (CMI)
0,41
Runoff
1 712mm/an
PET
1 631mm
AET
1 226mm
Mean slope
1,0°
Water table
20cm
Forest
60%
Crops
9%
Urban
3%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)