Ontologia

Commune · BGD

Narayanganj Sadar

Bangladesh

AwTropical, savannah(100 %)

Species observed

159

Observations

309

Area

99,9km²

Ecological tissue

Sample of 45 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 Narayanganj Sadar : 36 espèces dont 5 patrimoniales (LR IUCN CR/EN/VU) reliées par 56 interactions GloBI sur 4 types (connectance 5.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
45
Interactions affichées
56
Connectance
0.057
Patrimoniales
5
Plus dense que (national)0 %(top 100%)

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

Species present

159 distinct species · 309 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

309 obs · 2 cellules
Obs. / cellule
≥ 286
286–285
286–285
286–285
< 286

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

Climate

Mean T°

25,6°C

Annual rain

2 158mm

Warmest m°

32,4°C

Coldest m°

13,2°C

Elevation: 4 m on average (min 2 m, max 6 m)

Bioclimatic detailsExpert
Annual mean temp.
25,6°C
Annual rain
2 158mm
Warmest month
32,4°C
Coldest month
13,2°C
Mean alt.
4m
Min
2m
Max
6m
Std. dev.
1m
Köppen-Geiger (dominant)
AwTropical, savannah(100 %)Tropical

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

Soil & lithology

pH H₂O

5,5

Org. C

23,7g/kg

Clay

37,1%

Sand

27,4%

Silt

35,5%

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

Dominant lithology: suGLiMaggregated to Narayanganj

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,6
Org. C
23,1g/kg
Clay
35,9%
Sand
28,2%
Silt
35,8%
5–15 cm
pH H₂O
5,5
Org. C
22,9g/kg
Clay
37,1%
Sand
26,9%
Silt
36,0%
15–30 cm
pH H₂O
5,5
Org. C
25,0g/kg
Clay
38,4%
Sand
26,9%
Silt
34,8%

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

Land cover

Forest5.8%
Crops16.9%
Built-up16.2%
Bare soil0.4%
Other (grassland, water…)60.7%

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

Hydrology4 basins · 3 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

19,4km

Lake surface here

0,50km²

Basins crossed

4

Max stream order

6

Max drainage

5 883km²

Discharge in basins

225,2m³/s

Mean precip.

2 000mm/an

Mean T°

26,1°C

Moisture idx

0,27

Mean runoff

1 462mm/an

Mean elev. (basins)

8m

Watersheds crossing here

Lakes (3, top by area)

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

Human pressure

Pop. density

123hab/km²

Night light

10,6nW

Built-up

1 623,0%

Pesticides

15,3kg/km²

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

Sub-administrations7