Ontologia

HydroBASINS lev08 watershed · #4080029530

Bassin de Pazhayar 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 2 administrative regions : Kanniyakumari, Tirunelveli

Coastal basin 2% lakePfafstetter: 45401011

Sub-basin area

974,3km²

Upstream area

974,3km²

Discharge

1,29m³/s

Mean elev.

104m

Administrative coverage

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

1 227 distinct species · 82 235 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

82 235 obs · 26 cellules
Obs. / cellule
≥ 25 827
7 989–25 826
4 362–7 988
1 190–4 361
< 1 190

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 de Pazhayar River : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 40 interactions GloBI sur 3 types (connectance 14.5%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
40
Connectance
0.145
Patrimoniales
1
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°

27,2°C

Annual rain

1 062mm

Moisture idx (CMI)

-0,26

Runoff

391mm/an

PET

1 433mm

AET

883mm

Mean slope

5,1°

Water table

318cm

Forest

42%

Crops

64%

Urban

40%

Protected

5%

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