Commune · BGD
Derai
Bangladesh
Species observed
44
Observations
54
Area
406,5km²
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).
Indicateurs du tissu écologique
Tissu écologique de Derai : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 18 interactions GloBI sur 3 types (connectance 7.1%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
44 distinct species · 54 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
24,7°C
Annual rain
5 577mm
Warmest m°
31,3°C
Coldest m°
12,2°C
Elevation: 4 m on average (min 2 m, max 6 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
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
25,0g/kg
Clay
30,8%
Sand
34,9%
Silt
34,3%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: wbGLiMaggregated to Sunamganj
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology5 basins · 27 lakes · 3 rivers
Hydrology metrics for this exact territory
Stream length here
23,8km
Lake surface here
7,41km²
Basins crossed
5
Max stream order
6
Max drainage
36 397km²
Discharge in basins
346,4m³/s
Mean precip.
3 054mm/an
Mean T°
25,0°C
Moisture idx
0,52
Mean runoff
3 355mm/an
Mean elev. (basins)
8m
Watersheds crossing here
Lakes (27, top by area)
- Lac 1385696area0,7 km²avg depth1.4 m
- Lac 1385799area0,7 km²avg depth1.4 m
- Lac 1385620area0,6 km²avg depth1.3 m
- Lac 1385880area0,4 km²avg depth1.4 m
- Lac 1385944area0,4 km²avg depth1.2 m
- Lac 1385849area0,4 km²avg depth1.3 m
- Lac 1385800area0,4 km²avg depth1.6 m
- Lac 1385782area0,4 km²avg depth1.3 m
- Lac 1385746area0,4 km²avg depth1.6 m
18 more lakes
- Lac 1385707area0,3 km²avg depth1.2 m
- Lac 1385963area0,3 km²avg depth1.4 m
- Lac 1385688area0,3 km²avg depth1.0 m
- Lac 1385794area0,3 km²avg depth1.3 m
- Lac 1385621area0,3 km²avg depth1.1 m
- Lac 1385664area0,2 km²avg depth1.1 m
- Lac 1385793area0,2 km²avg depth1.6 m
- Lac 1385855area0,2 km²avg depth1.3 m
- Lac 1385760area0,2 km²avg depth1.4 m
- Lac 1385763area0,2 km²avg depth1.1 m
- Lac 1385695area0,2 km²avg depth1.2 m
- Lac 1385765area0,2 km²avg depth1.2 m
- Lac 1385783area0,2 km²avg depth0.9 m
- Lac 1385967area0,2 km²avg depth1.1 m
- Lac 1385750area0,2 km²avg depth1.4 m
- Lac 1385984area0,2 km²avg depth0.9 m
- Lac 1385762area0,2 km²avg depth0.9 m
- Lac 1385779area0,1 km²avg depth1.1 m
Rivers / streams (3, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
6hab/km²
Night light
0,0nW
Built-up
54,0%
Pesticides
15,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)