Ontologia

HydroBASINS lev08 watershed · #4080029640

Bassin de Vamanapuram 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 3 administrative regions : Kollam, Thiruvananthapuram, Tirunelveli

Pfafstetter: 45401016

Sub-basin area

711,6km²

Upstream area

711,6km²

Discharge

21,73m³/s

Mean elev.

157m

Administrative coverage

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Western Ghats

    IUCN Not Applicable

    World Heritage Site (natural or mixed)

    123.66 km² overlap

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

Species present

1 506 distinct species · 51 035 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

51 035 obs · 20 cellules
Obs. / cellule
≥ 11 394
5 989–11 393
2 797–5 988
1 859–2 796
< 1 859

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

Ecological tissue

Sample of 35 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 Vamanapuram River : 32 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 43 interactions GloBI sur 3 types (connectance 7.2%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
43
Connectance
0.072
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°

26,4°C

Annual rain

1 895mm

Moisture idx (CMI)

0,27

Runoff

861mm/an

PET

1 375mm

AET

1 142mm

Mean slope

5,8°

Water table

224cm

Forest

67%

Crops

53%

Urban

34%

Protected

2%

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