Ontologia

Distict · BGD

Dhaka

Bangladesh

CwaTemperate, dry winter, hot summer(64 %)

Species observed

1 860

Observations

207 399

Area

1 476,1km²

Ecological tissue

Sample of 31 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 Dhaka : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 46 interactions GloBI sur 4 types (connectance 9.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
46
Connectance
0.099
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

1 860 distinct species · 207 399 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

207 399 obs · 38 cellules
Obs. / cellule
≥ 51 592
19 419–51 591
2 521–19 418
232–2 520
< 232

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

Climate

Mean T°

25,5°C

Annual rain

2 091mm

Warmest m°

32,7°C

Coldest m°

12,9°C

Elevation: 6 m on average (min 2 m, max 12 m)

Bioclimatic detailsExpert
Annual mean temp.
25,5°C
Annual rain
2 091mm
Warmest month
32,7°C
Coldest month
12,9°C
Mean alt.
6m
Min
2m
Max
12m
Std. dev.
2m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, hot summer(64 %)Temperate

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

5,6

Org. C

21,1g/kg

Clay

33,3%

Sand

31,8%

Silt

34,8%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,6
Org. C
22,6g/kg
Clay
29,7%
Sand
34,4%
Silt
35,9%
5–15 cm
pH H₂O
5,5
Org. C
20,7g/kg
Clay
32,1%
Sand
32,4%
Silt
35,5%
15–30 cm
pH H₂O
5,5
Org. C
20,0g/kg
Clay
38,1%
Sand
28,7%
Silt
33,1%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest17.9%
Crops33.6%
Built-up7.5%
Bare soil0.9%
Other (grassland, water…)40.1%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology8 basins · 4 lakes · 21 rivers

Hydrology metrics for this exact territory

Stream length here

264,2km

Lake surface here

0,94km²

Basins crossed

8

Max stream order

5

Max drainage

1 485 848km²

Discharge in basins

8 419,6m³/s

Mean precip.

1 956mm/an

Mean T°

25,8°C

Moisture idx

0,25

Mean runoff

1 450mm/an

Mean elev. (basins)

9m

Watersheds crossing here

Lakes (4, top by area)

Rivers / streams (21, ord ≥ 4)

9 more river segments

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

87hab/km²

Night light

5,9nW

Built-up

753,2%

Pesticides

15,1kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas1

IUCN Not Reported · 1

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN

Sub-administrations76