HydroBASINS lev08 watershed · #6080250930
Bassin de Rio Mamiá
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 : Alenquer, Curuá, Óbidos
Sub-basin area
491km²
Upstream area
2 219,8km²
Discharge
58,1m³/s
Mean elev.
35m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Mamiá393 km²
- Bassin de Rio Mamiá187 km²
3 dept-equivalent regions (GADM L2)
- 291.2 km²59.6% of basin
- 162.3 km²33.2% of basin
- 35.3 km²7.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
191 distinct species · 338 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 Mamiá : 28 espèces reliées par 34 interactions GloBI sur 5 types (connectance 5.4%, filtre Serrano α=0.2). 8 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 794mm
Moisture idx (CMI)
0,07
Runoff
807mm/an
PET
1 661mm
AET
1 240mm
Mean slope
1,5°
Water table
60cm
Forest
80%
Crops
0%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)