HydroBASINS lev08 watershed · #6080799210
Bassin de Rio Negro
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 6 administrative regions : Antônio Olinto, Itaiópolis, Lapa, Mafra, São Mateus do Sul +1
Sub-basin area
673,4km²
Upstream area
6 971,2km²
Discharge
154,93m³/s
Mean elev.
834m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio da Várzea2347 km²
- Bassin de Rio Negro1362 km²
6 dept-equivalent regions (GADM L2)
- 353.8 km²52.6% of basin
- 274.0 km²40.8% of basin
- 28.4 km²4.2% of basin
- 14.4 km²2.1% of basin
- 1.0 km²0.2% of basin
- 0.4 km²0.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
231 distinct species · 482 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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 Negro : 17 espèces reliées par 27 interactions GloBI sur 4 types (connectance 9.8%, filtre Serrano α=0.2). 7 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°
16,9°C
Annual rain
1 355mm
Moisture idx (CMI)
-0,02
Runoff
708mm/an
PET
1 385mm
AET
1 147mm
Mean slope
4,4°
Water table
173cm
Forest
40%
Crops
22%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)