Ontologia

Commune · BGD

Demra

Bangladesh

CwaTemperate, dry winter, hot summer(71 %)

Species observed

56

Observations

184

Area

22,4km²

Ecological tissue

Sample of 28 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 Demra : 24 espèces reliées par 27 interactions GloBI sur 3 types (connectance 7.1%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
27
Connectance
0.071
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Species present

56 distinct species · 184 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

184 obs · 1 cellules
Obs. / cellule
≥ 184
184–183
184–183
184–183
< 184

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 161mm

Warmest m°

32,5°C

Coldest m°

12,9°C

Elevation: 4 m on average (min 2 m, max 5 m)

Bioclimatic detailsExpert
Annual mean temp.
25,6°C
Annual rain
2 161mm
Warmest month
32,5°C
Coldest month
12,9°C
Mean alt.
4m
Min
2m
Max
5m
Std. dev.
1m
Köppen-Geiger (dominant)
CwaTemperate, dry winter, hot summer(71 %)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

21,8g/kg

Clay

31,9%

Sand

32,1%

Silt

36,0%

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

Dominant lithology: suGLiMaggregated to Dhaka

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,6
Org. C
22,4g/kg
Clay
29,1%
Sand
33,8%
Silt
37,1%
5–15 cm
pH H₂O
5,6
Org. C
24,0g/kg
Clay
31,0%
Sand
32,3%
Silt
36,7%
15–30 cm
pH H₂O
5,5
Org. C
18,9g/kg
Clay
35,5%
Sand
30,2%
Silt
34,3%

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

Land cover

Forest6.1%
Crops22.9%
Built-up13.5%
Bare soil0.3%
Other (grassland, water…)57.1%

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

Hydrology3 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

8,4km

Basins crossed

3

Max stream order

5

Max drainage

5 827km²

Discharge in basins

16,5m³/s

Mean precip.

2 026mm/an

Mean T°

26,0°C

Moisture idx

0,28

Mean runoff

1 456mm/an

Mean elev. (basins)

9m

Watersheds crossing here

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

Human pressure

Pop. density

169hab/km²

Night light

11,3nW

Built-up

1 354,3%

Pesticides

15,4kg/km²

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

Sub-administrations2