District · IND
Kolkata
India
Species observed
1 970
Observations
193 369
Area
91,6km²
Ecological tissue
Sample of 30 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 Kolkata : 24 espèces reliées par 38 interactions GloBI sur 4 types (connectance 8.2%, filtre Serrano α=0.2). 7 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
1 970 distinct species · 193 369 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
26,1°C
Annual rain
1 824mm
Warmest m°
35,1°C
Coldest m°
13,0°C
Elevation: 6 m on average (min 3 m, max 9 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)
Land cover
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology3 basins · 4 lakes · 3 rivers
Hydrology metrics for this exact territory
Stream length here
17,9km
Lake surface here
0,87km²
Basins crossed
3
Max stream order
6
Max drainage
28 048km²
Discharge in basins
100,5m³/s
Mean precip.
1 650mm/an
Mean T°
26,3°C
Moisture idx
0,05
Mean runoff
853mm/an
Mean elev. (basins)
7m
Watersheds crossing here
Lakes (4, top by area)
Rivers / streams (3, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
303hab/km²
Night light
53,8nW
Built-up
3 219,7%
Pesticides
2,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)