Ontologia

Commune · BGD

Chhagalnaiya

Bangladesh

AmTropical, monsoon(100 %)

Species observed

22

Observations

29

Area

136,6km²

Ecological tissue

Sample of 9 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 Chhagalnaiya : 9 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 6 interactions GloBI sur 2 types (connectance 16.7%, filtre Serrano α=0.2).

Espèces affichées
9
Interactions affichées
6
Connectance
0.167
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

22 distinct species · 29 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

29 obs · 3 cellules
Obs. / cellule
≥ 17
17–16
17–16
9–16
< 9

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

Climate

Mean T°

25,2°C

Annual rain

2 910mm

Warmest m°

31,6°C

Coldest m°

12,9°C

Elevation: 7 m on average (min 4 m, max 27 m)

Bioclimatic detailsExpert
Annual mean temp.
25,2°C
Annual rain
2 910mm
Warmest month
31,6°C
Coldest month
12,9°C
Mean alt.
7m
Min
4m
Max
27m
Std. dev.
3m
Köppen-Geiger (dominant)
AmTropical, monsoon(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

17,0g/kg

Clay

37,3%

Sand

26,0%

Silt

36,7%

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

Dominant lithology: suGLiMaggregated to Feni

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,5
Org. C
21,5g/kg
Clay
34,0%
Sand
27,9%
Silt
38,2%
5–15 cm
pH H₂O
5,4
Org. C
17,4g/kg
Clay
36,7%
Sand
26,2%
Silt
37,1%
15–30 cm
pH H₂O
5,4
Org. C
12,2g/kg
Clay
41,2%
Sand
24,0%
Silt
34,8%

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

Land cover

Forest26.8%
Crops47.0%
Built-up2.2%
Bare soil0.2%
Other (grassland, water…)23.8%

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

Hydrology1 basins · 1 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

66,9km

Lake surface here

0,04km²

Basins crossed

1

Max stream order

5

Max drainage

3 035km²

Discharge in basins

7,2m³/s

Mean precip.

2 446mm/an

Mean T°

25,5°C

Moisture idx

0,42

Mean runoff

1 816mm/an

Mean elev. (basins)

51m

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

Human pressure

Pop. density

12hab/km²

Night light

0,8nW

Built-up

221,3%

Pesticides

13,6kg/km²

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

Sub-administrations5