Ontologia

HydroBASINS lev08 watershed · #4080966950

Bassin de Brahmaputra River

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 2 administrative regions : Dhaka, Narayanganj

Pfafstetter: 45220230

Sub-basin area

235,4km²

Upstream area

5 826,9km²

Discharge

284,22m³/s

Mean elev.

8m

Administrative coverage

Hydrographic chain

2 dept-equivalent regions (GADM L2)

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

Species present

208 distinct species · 1 072 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 072 obs · 7 cellules
Obs. / cellule
≥ 326
326–325
184–325
178–183
< 178

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

Ecological tissue

Sample of 35 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 Brahmaputra River : 28 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 44 interactions GloBI sur 4 types (connectance 7.4%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
44
Connectance
0.074
Patrimoniales
4
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°

26,2°C

Annual rain

2 017mm

Moisture idx (CMI)

0,28

Runoff

1 435mm/an

PET

1 448mm

AET

1 083mm

Mean slope

0,1°

Water table

5cm

Forest

0%

Crops

53%

Urban

100%

Protected

0%

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