Ontologia

HydroBASINS lev08 watershed · #5080022850

Bassin de Rizal 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 : Roxas, San Vicente

Pfafstetter: 52403016

Sub-basin area

374,3km²

Upstream area

374,4km²

Discharge

8,02m³/s

Mean elev.

138m

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

173 distinct species · 332 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

332 obs · 9 cellules
Obs. / cellule
≥ 179
179–178
38–178
23–37
< 23

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

Ecological tissue

Sample of 31 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 Rizal River : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 24 interactions GloBI sur 3 types (connectance 5.2%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
24
Connectance
0.052
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°

26,7°C

Annual rain

1 971mm

Moisture idx (CMI)

0,24

Runoff

831mm/an

PET

1 490mm

AET

1 186mm

Mean slope

10,4°

Water table

415cm

Forest

57%

Crops

18%

Urban

1%

Protected

100%

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