Ontologia

HydroBASINS lev08 watershed · #4080970210

Bassin de shiv nalini

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 5 administrative regions : Dhaka, Faridpur, Madaripur, Manikganj, Munshiganj

Pfafstetter: 45230005

Sub-basin area

592,3km²

Upstream area

1 485 847,5km²

Discharge

34 845,86m³/s

Mean elev.

4m

Administrative coverage

Hydrographic chain

▲ Receives from 2 basins

5 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Padma Setu

    IUCN Not Reported

    Wildlife Sanctuary

    19.18 km² overlap

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

Species present

314 distinct species · 9 988 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 988 obs · 14 cellules
Obs. / cellule
≥ 5 950
1 555–5 949
396–1 554
117–395
< 117

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 shiv nalini : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 42 interactions GloBI sur 3 types (connectance 8.0%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
42
Connectance
0.080
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°

25,6°C

Annual rain

1 893mm

Moisture idx (CMI)

0,22

Runoff

1 368mm/an

PET

1 472mm

AET

1 086mm

Mean slope

0,1°

Water table

9cm

Forest

0%

Crops

61%

Urban

43%

Protected

0%

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