HydroBASINS lev08 watershed · #4080025290
Bassin de Napittachora
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 1 administrative regions : Chittagong
Sub-basin area
196,4km²
Upstream area
196,6km²
Discharge
13,1m³/s
Mean elev.
28m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- ChittagongChittagong · Bangladesh195.8 km²100.0% of basin
2 intersecting protected areas
Baraiyadhala
IUCN IINational Park
21.86 km² overlap
Hajarikhil
IUCN IIWildlife Sanctuary
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
200 distinct species · 1 215 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Bassin de Napittachora : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 37 interactions GloBI sur 3 types (connectance 7.0%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
25,6°C
Annual rain
2 740mm
Moisture idx (CMI)
0,49
Runoff
2 101mm/an
PET
1 395mm
AET
1 059mm
Mean slope
1,6°
Water table
97cm
Forest
1%
Crops
38%
Urban
31%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)