Ontologia

HydroBASINS lev08 watershed · #4080875600

Bassin de Koshi

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 : Koshi, Sagarmatha, Supaul

15% lakePfafstetter: 45242550

Sub-basin area

47,8km²

Upstream area

55 749km²

Discharge

1 696,6m³/s

Mean elev.

81m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Koshi837 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

418 distinct species · 4 590 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 590 obs · 2 cellules
Obs. / cellule
≥ 2 382
2 382–2 381
2 382–2 381
2 382–2 381
< 2 382

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 Koshi : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 49 interactions GloBI sur 3 types (connectance 9.3%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
49
Connectance
0.093
Patrimoniales
2
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°

24,5°C

Annual rain

1 678mm

Moisture idx (CMI)

0,08

Runoff

777mm/an

PET

1 536mm

AET

942mm

Mean slope

0,0°

Water table

4cm

Forest

0%

Crops

74%

Urban

27%

Protected

56%

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