Ontologia

HydroBASINS lev08 watershed · #4080928810

Bassin de Longai River

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 5 administrative regions across 2 countries : Karimganj, Mamit, Maulvibazar, North Tripura, Sylhet

Pfafstetter: 45220580

Sub-basin area

1 317,2km²

Upstream area

1 317,2km²

Discharge

79,67m³/s

Mean elev.

108m

Administrative coverage

Hydrographic chain

▲ Receives from 0 basins

Source / headwater (no upstream basin)

5 dept-equivalent regions (GADM L2)

1 intersecting protected areas

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

Species present

2 553 distinct species · 54 424 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

54 424 obs · 30 cellules
Obs. / cellule
≥ 32 869
3 762–32 868
113–3 761
37–112
< 37

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

Ecological tissue

Sample of 15 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 de Longai River : 13 espèces reliées par 10 interactions GloBI sur 2 types (connectance 9.5%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
15
Interactions affichées
10
Connectance
0.095
Patrimoniales
0
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°

24,6°C

Annual rain

2 838mm

Moisture idx (CMI)

0,47

Runoff

1 908mm/an

PET

1 482mm

AET

1 248mm

Mean slope

4,1°

Water table

146cm

Forest

1%

Crops

37%

Urban

4%

Protected

0%

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