Ontologia

HydroBASINS lev08 watershed · #4081002870

Bassin · #4081002870

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

Pfafstetter: 45100582

Sub-basin area

202,6km²

Upstream area

202,6km²

Discharge

13,42m³/s

Mean elev.

21m

Administrative coverage

Hydrographic chain

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

1 intersecting protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

70 distinct species · 142 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

142 obs · 4 cellules
Obs. / cellule
≥ 77
77–76
57–76
57–56
< 57

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

Ecological tissue

Sample of 24 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 Bassin · #4081002870 : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 22 interactions GloBI sur 4 types (connectance 8.0%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
22
Connectance
0.080
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Hydroclimate (BasinATLAS lev08)

Mean T°

25,8°C

Annual rain

2 491mm

Moisture idx (CMI)

0,43

Runoff

2 093mm/an

PET

1 417mm

AET

1 070mm

Mean slope

0,8°

Water table

35cm

Forest

4%

Crops

35%

Urban

30%

Protected

0%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)