HydroBASINS lev08 watershed · #6080007390
Bassin de Rio Arari
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 : Cachoeira do Arari, Ponta de Pedras, Salvaterra
Sub-basin area
1 523,7km²
Upstream area
1 523,7km²
Discharge
90,54m³/s
Mean elev.
6m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 925.4 km²61.0% of basin
- 591.4 km²39.0% of basin
- 0.1 km²0.0% of basin
2 intersecting protected areas
Environmental Protection Area
1516.87 km² overlap
Wetland of International Importance (Ramsar Site)
34.55 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
278 distinct species · 788 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Arari : 36 espèces reliées par 41 interactions GloBI sur 3 types (connectance 4.8%, filtre Serrano α=0.2). 6 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°
27,2°C
Annual rain
2 406mm
Moisture idx (CMI)
0,34
Runoff
1 321mm/an
PET
1 597mm
AET
1 282mm
Mean slope
0,3°
Water table
6cm
Forest
29%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)