HydroBASINS lev08 watershed · #2080009210
Bassin · #2080009210
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 : Arnavutkoy, Eyüp, Sarıyer, Şişli
Sub-basin area
250,6km²
Upstream area
250,6km²
Discharge
2,95m³/s
Mean elev.
71m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 115.7 km²46.1% of basin
- 61.3 km²24.4% of basin
- 53.1 km²21.2% of basin
- 0.0 km²0.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 183 distinct species · 48 411 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 · #2080009210 : 23 espèces reliées par 71 interactions GloBI sur 3 types (connectance 12.7%, filtre Serrano α=0.2). 11 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°
13,6°C
Annual rain
816mm
Moisture idx (CMI)
-0,08
Runoff
463mm/an
PET
888mm
AET
571mm
Mean slope
5,6°
Water table
263cm
Forest
33%
Crops
17%
Urban
65%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)