Ontologia

HydroBASINS lev08 watershed · #4080865350

Bassin de Burhi Gandak

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 across 2 countries : Narayani, Pashchim Champaran, Purba Champaran

Pfafstetter: 45243290

Sub-basin area

1 958,7km²

Upstream area

1 958,7km²

Discharge

54,1m³/s

Mean elev.

160m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Burhi Gandak439 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

398 distinct species · 2 387 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 387 obs · 38 cellules
Obs. / cellule
≥ 491
243–490
35–242
12–34
< 12

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

Ecological tissue

Sample of 33 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 Burhi Gandak : 26 espèces dont 5 patrimoniales (LR IUCN CR/EN/VU) reliées par 47 interactions GloBI sur 3 types (connectance 8.4%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
47
Connectance
0.084
Patrimoniales
5
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°

24,3°C

Annual rain

1 522mm

Moisture idx (CMI)

-0,04

Runoff

906mm/an

PET

1 580mm

AET

914mm

Mean slope

2,1°

Water table

103cm

Forest

28%

Crops

46%

Urban

6%

Protected

18%

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