Ontologia

HydroBASINS lev08 watershed · #4080929290

Bassin de Punarbhaba

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 7 administrative regions across 2 countries : Dakshin Dinajpur, Dinajpur, Maldah, Naogaon, Nawabganj +2

6% lakePfafstetter: 45241220

Sub-basin area

2 640,4km²

Upstream area

2 640,4km²

Discharge

90,53m³/s

Mean elev.

36m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Mahananda773 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

7 dept-equivalent regions (GADM L2)

4 intersecting protected areas

  • Dharmapur

    IUCN Not Reported

    National Park

    7.35 km² overlap

  • Singra

    IUCN IV

    National Park

    3.51 km² overlap

  • Birganj

    IUCN IV

    National Park

    0.81 km² overlap

  • Ramsagar

    IUCN IV

    National Park

    0.34 km² overlap

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

Species present

382 distinct species · 13 078 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

13 078 obs · 43 cellules
Obs. / cellule
≥ 4 398
708–4 397
80–707
13–79
< 13

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

Ecological tissue

Sample of 30 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 Punarbhaba : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 51 interactions GloBI sur 4 types (connectance 11.0%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
51
Connectance
0.110
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°

25,1°C

Annual rain

1 680mm

Moisture idx (CMI)

0,08

Runoff

1 014mm/an

PET

1 511mm

AET

976mm

Mean slope

0,2°

Water table

11cm

Forest

0%

Crops

90%

Urban

8%

Protected

0%

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