HydroBASINS lev08 watershed · #2080645070
Bassin de Orhaneli Çayı
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 7 administrative regions : Domaniç, Harmancık, Keles, Orhaneli, Osmangazi +2
Sub-basin area
1 194,8km²
Upstream area
3 650,1km²
Discharge
31,95m³/s
Mean elev.
939m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Dola Deresi252 km²
- Bassin de Orhaneli Çayı1 km²
7 dept-equivalent regions (GADM L2)
- 504.4 km²42.2% of basin
- 217.1 km²18.2% of basin
- 207.6 km²17.4% of basin
- 174.6 km²14.6% of basin
- 81.0 km²6.8% of basin
- 8.8 km²0.7% of basin
- 2.3 km²0.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
218 distinct species · 924 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Orhaneli Çayı : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 87 interactions GloBI sur 4 types (connectance 9.6%, filtre Serrano α=0.2). 10 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°
10,4°C
Annual rain
788mm
Moisture idx (CMI)
-0,19
Runoff
366mm/an
PET
979mm
AET
592mm
Mean slope
10,8°
Water table
455cm
Forest
24%
Crops
26%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)