Ontologia

HydroBASINS lev08 watershed · #4081146470

Bassin de Chaliyar 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 4 administrative regions : Kozhikode, Malappuram, The Nilgiris, Wayanad

Pfafstetter: 45403326

Sub-basin area

431,8km²

Upstream area

431,8km²

Discharge

19,06m³/s

Mean elev.

685m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Kuruvan Puzha195 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

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

Species present

697 distinct species · 54 505 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

54 505 obs · 14 cellules
Obs. / cellule
≥ 14 597
10 040–14 596
4 187–10 039
2 484–4 186
< 2 484

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

Ecological tissue

Sample of 26 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 Chaliyar river : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 22 interactions GloBI sur 3 types (connectance 6.8%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
22
Connectance
0.068
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°

23,7°C

Annual rain

3 062mm

Moisture idx (CMI)

0,51

Runoff

1 298mm/an

PET

1 445mm

AET

1 049mm

Mean slope

11,9°

Water table

393cm

Forest

100%

Crops

40%

Urban

1%

Protected

0%

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