Ontologia

HydroBASINS lev08 watershed · #6080159760

Bassin de Brazo Casiquiare

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 : Atabapo, Maroa, Río Negro

Pfafstetter: 62288647

Sub-basin area

1 515,9km²

Upstream area

3 380,2km²

Discharge

237,55m³/s

Mean elev.

129m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Brazo Casiquiare900 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

308 distinct species · 447 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

447 obs · 20 cellules
Obs. / cellule
≥ 113
85–112
20–84
6–19
< 6

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

Ecological tissue

Sample of 10 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 Brazo Casiquiare : 9 espèces reliées par 8 interactions GloBI sur 2 types (connectance 17.8%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
10
Interactions affichées
8
Connectance
0.178
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°

26,7°C

Annual rain

3 273mm

Moisture idx (CMI)

0,44

Runoff

2 301mm/an

PET

1 843mm

AET

1 794mm

Mean slope

1,3°

Water table

29cm

Forest

100%

Crops

0%

Urban

0%

Protected

56%

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