HydroBASINS lev08 watershed · #5080027910
Bassin de Tanjay 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 6 administrative regions : Amlan, Bais City, Pamplona, Sibulan, Tanjay City +1
Sub-basin area
295,3km²
Upstream area
295,4km²
Discharge
6,54m³/s
Mean elev.
372m
Administrative coverage
6 dept-equivalent regions (GADM L2)
- Pamplona128.9 km²43.8% of basin
- 89.4 km²30.4% of basin
- 58.0 km²19.7% of basin
- 8.9 km²3.0% of basin
- Valencia7.3 km²2.5% of basin
- 1.4 km²0.5% of basin
2 intersecting protected areas
Natural Park
31.61 km² overlap
Protected Seascape
0.18 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
146 distinct species · 465 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 22 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Tanjay River : 18 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 17 interactions GloBI sur 3 types (connectance 7.4%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
25,7°C
Annual rain
2 124mm
Moisture idx (CMI)
0,27
Runoff
1 074mm/an
PET
1 525mm
AET
1 362mm
Mean slope
9,6°
Water table
296cm
Forest
20%
Crops
23%
Urban
7%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)