HydroBASINS lev08 watershed · #2080003060
Bassin de Umurbey 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 4 administrative regions : Bayramiç, Biga, Lapseki, Merkez
Sub-basin area
1 840,6km²
Upstream area
1 840,6km²
Discharge
0,01m³/s
Mean elev.
235m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 785.1 km²42.6% of basin
- 750.6 km²40.7% of basin
- 194.2 km²10.5% of basin
- 69.8 km²3.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 013 distinct species · 30 893 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Umurbey Çayı : 21 espèces reliées par 61 interactions GloBI sur 4 types (connectance 15.0%, filtre Serrano α=0.2). 8 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°
13,7°C
Annual rain
697mm
Moisture idx (CMI)
-0,35
Runoff
280mm/an
PET
1 066mm
AET
570mm
Mean slope
7,8°
Water table
451cm
Forest
27%
Crops
28%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)