Ontologia

HydroBASINS lev08 watershed · #4080025950

Bassin · #4080025950

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

Coastal basinPfafstetter: 45311305

Sub-basin area

497,3km²

Upstream area

497,3km²

Discharge

19m³/s

Mean elev.

9m

Administrative coverage

1 dept-equivalent regions (GADM L2)

4 intersecting protected areas

  • Sundarban East

    IUCN Ib

    Wildlife Sanctuary

    486.21 km² overlap

  • Sundarbans Reserved Forest

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    448.92 km² overlap

  • The Sundarbans

    IUCN Not Applicable

    World Heritage Site (natural or mixed)

    265.91 km² overlap

  • Dudmukhi

    IUCN II

    Wildlife (Dolphin) Sanctuary

    0.68 km² overlap

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

Species present

295 distinct species · 7 003 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 003 obs · 13 cellules
Obs. / cellule
≥ 2 721
1 594–2 720
789–1 593
39–788
< 39

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

Ecological tissue

Sample of 23 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 · #4080025950 : 16 espèces reliées par 35 interactions GloBI sur 3 types (connectance 13.8%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
23
Interactions affichées
35
Connectance
0.138
Patrimoniales
0
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°

26,0°C

Annual rain

2 263mm

Moisture idx (CMI)

0,38

Runoff

1 275mm/an

PET

1 401mm

AET

1 017mm

Mean slope

0,4°

Water table

17cm

Forest

84%

Crops

27%

Urban

0%

Protected

53%

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