Ontologia

HydroBASINS lev08 watershed · #4080025960

Bassin · #4080025960

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 1 administrative regions : Bagerhat

Pfafstetter: 45311306

Sub-basin area

295,2km²

Upstream area

295,2km²

Discharge

9,05m³/s

Mean elev.

11m

Administrative coverage

1 dept-equivalent regions (GADM L2)

4 intersecting protected areas

  • Sundarbans Reserved Forest

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    294.49 km² overlap

  • Sundarban East

    IUCN Ib

    Wildlife Sanctuary

    43.86 km² overlap

  • Chandpai

    IUCN II

    Wildlife (Dolphin) Sanctuary

    0.97 km² overlap

  • Dudmukhi

    IUCN II

    Wildlife (Dolphin) Sanctuary

    0.51 km² overlap

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

Species present

154 distinct species · 2 277 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 277 obs · 7 cellules
Obs. / cellule
≥ 1 417
1 417–1 416
281–1 416
122–280
< 122

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

Ecological tissue

Sample of 20 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 · #4080025960 : 12 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 25 interactions GloBI sur 3 types (connectance 11.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
21
Interactions affichées
25
Connectance
0.119
Patrimoniales
1
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°

26,1°C

Annual rain

2 134mm

Moisture idx (CMI)

0,33

Runoff

1 273mm/an

PET

1 434mm

AET

1 030mm

Mean slope

0,6°

Water table

23cm

Forest

71%

Crops

25%

Urban

0%

Protected

1%

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