HydroBASINS lev08 watershed · #5080216070
Bassin de Sungai Keser
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 5 administrative regions : Blitar, Nganjuk, Ponorogo, Trenggalek, Tulungagung
Sub-basin area
1 495km²
Upstream area
1 495,1km²
Discharge
56,71m³/s
Mean elev.
334m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- Tulungagung774.4 km²52.0% of basin
- Trenggalek634.2 km²42.6% of basin
- Ponorogo70.7 km²4.7% of basin
- 8.6 km²0.6% of basin
- Nganjuk0.8 km²0.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
153 distinct species · 273 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Sungai Keser : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 34 interactions GloBI sur 4 types (connectance 6.9%, filtre Serrano α=0.2). 5 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°
24,3°C
Annual rain
2 191mm
Moisture idx (CMI)
0,24
Runoff
1 248mm/an
PET
1 593mm
AET
1 327mm
Mean slope
7,5°
Water table
265cm
Forest
11%
Crops
63%
Urban
43%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)