HydroBASINS lev08 watershed · #2080687660
Bassin de Çatak 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 3 administrative regions : Bahçesaray, Pervari, Çatak
Sub-basin area
221,9km²
Upstream area
2 640,6km²
Discharge
28,58m³/s
Mean elev.
2 413m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Sortikin Deresi397 km²
- Bassin de Çatak Çayı316 km²
3 dept-equivalent regions (GADM L2)
- 116.3 km²52.4% of basin
- 64.0 km²28.8% of basin
- 41.8 km²18.8% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
119 distinct species · 267 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 Çatak Çayı : 18 espèces reliées par 48 interactions GloBI sur 4 types (connectance 12.7%, 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°
6,6°C
Annual rain
675mm
Moisture idx (CMI)
-0,22
Runoff
440mm/an
PET
877mm
AET
522mm
Mean slope
23,6°
Water table
911cm
Forest
3%
Crops
4%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)