Ontologia

HydroBASINS lev08 watershed · #4080877740

Bassin de Hollong 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 4 administrative regions across 2 countries : Alipurduar, Koch Bihar, Phuentshogpelri, Tading

Pfafstetter: 45253084

Sub-basin area

563km²

Upstream area

563,1km²

Discharge

25,22m³/s

Mean elev.

171m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Jaldhaka347 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Pakhan Beth

    IUCN Not Applicable

    Key Biodiversity Area

    0.02 km² overlap

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

Species present

330 distinct species · 1 987 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 987 obs · 16 cellules
Obs. / cellule
≥ 710
592–709
87–591
28–86
< 28

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

Ecological tissue

Sample of 42 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 Hollong River : 36 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 46 interactions GloBI sur 3 types (connectance 5.3%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
46
Connectance
0.053
Patrimoniales
3
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°

23,6°C

Annual rain

3 544mm

Moisture idx (CMI)

0,60

Runoff

1 412mm/an

PET

1 385mm

AET

1 075mm

Mean slope

2,5°

Water table

110cm

Forest

1%

Crops

56%

Urban

11%

Protected

0%

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