HydroBASINS lev08 watershed · #6080223670
Bassin de Rio Cajari
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 : Gurupá, Mazagão, Vitória do Jari
Sub-basin area
820,4km²
Upstream area
4 863,6km²
Discharge
157,6m³/s
Mean elev.
21m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio São Luís1647 km²
- Bassin · #6080225800479 km²
3 dept-equivalent regions (GADM L2)
- Vitória do JariAmapá · Brazil590.6 km²72.3% of basin
- 197.9 km²24.2% of basin
- 28.3 km²3.5% of basin
2 intersecting protected areas
Wetland of International Importance (Ramsar Site)
788.82 km² overlap
Extractive Reserve
705.36 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
249 distinct species · 666 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 16 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 Cajari : 14 espèces reliées par 12 interactions GloBI sur 3 types (connectance 10.0%, filtre Serrano α=0.2). 2 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
2 478mm
Moisture idx (CMI)
0,33
Runoff
1 183mm/an
PET
1 654mm
AET
1 429mm
Mean slope
1,1°
Water table
28cm
Forest
85%
Crops
0%
Urban
0%
Protected
86%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)