HydroBASINS lev08 watershed · #6080009660
Bassin de Rio Barro Duro
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 : Araioses, Ilha Grande, Paulino Neves, Santana do Maranhão, Tutóia +1
Sub-basin area
2 320,7km²
Upstream area
2 320,7km²
Discharge
7,77m³/s
Mean elev.
35m
Administrative coverage
6 dept-equivalent regions (GADM L2)
- 1264.4 km²54.7% of basin
- 612.0 km²26.5% of basin
- 297.8 km²12.9% of basin
- 68.6 km²3.0% of basin
- 45.7 km²2.0% of basin
- 0.5 km²0.0% of basin
5 intersecting protected areas
Área De Proteção Ambiental Da Foz Do Rio Das Preguiças - Pequenos Lençóis - Região Lagunar Adjacente
IUCN VEnvironmental Protection Area
1278.10 km² overlap
Wetland of International Importance (Ramsar Site)
1193.88 km² overlap
Environmental Protection Area
1191.82 km² overlap
Extractive Reserve
238.27 km² overlap
Natural Heritage Private Reserve
1.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
430 distinct species · 1 457 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 Barro Duro : 30 espèces reliées par 34 interactions GloBI sur 4 types (connectance 4.6%, filtre Serrano α=0.2). 9 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
1 443mm
Moisture idx (CMI)
-0,16
Runoff
749mm/an
PET
1 713mm
AET
976mm
Mean slope
0,7°
Water table
57cm
Forest
26%
Crops
6%
Urban
1%
Protected
59%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)