Ontologia

HydroBASINS lev08 watershed · #6080579600

Bassin de Rio Maranhão

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 : Campinaçu, Colinas do Sul, Niquelândia

171% lakePfafstetter: 62447901

Sub-basin area

949,6km²

Upstream area

41 383,2km²

Discharge

699,32m³/s

Mean elev.

579m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rio Tocantins1239 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

498 distinct species · 1 484 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 484 obs · 19 cellules
Obs. / cellule
≥ 373
249–372
109–248
48–108
< 48

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 5 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Rio Maranhão : 5 espèces reliées par 4 interactions GloBI sur 1 type (connectance 40.0%, filtre Serrano α=0.2).

Espèces affichées
5
Interactions affichées
4
Connectance
0.400
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

24,8°C

Annual rain

1 936mm

Moisture idx (CMI)

0,14

Runoff

620mm/an

PET

1 654mm

AET

1 202mm

Mean slope

5,9°

Water table

233cm

Forest

19%

Crops

1%

Urban

0%

Protected

0%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)