HydroBASINS lev08 watershed · #2080408100
Bassin de Терса
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 2 administrative regions : Elanskiy rayon, Kikvidzenskiy rayon
Sub-basin area
322,9km²
Upstream area
5 320,7km²
Discharge
12,2m³/s
Mean elev.
133m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Терса2814 km²
- Bassin de Елань2183 km²
2 dept-equivalent regions (GADM L2)
- 323.5 km²99.8% of basin
- 0.5 km²0.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
406 distinct species · 648 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 46 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 Терса : 40 espèces reliées par 67 interactions GloBI sur 5 types (connectance 6.5%, filtre Serrano α=0.2). 6 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°
6,3°C
Annual rain
451mm
Moisture idx (CMI)
-0,44
Runoff
52mm/an
PET
799mm
AET
387mm
Mean slope
0,5°
Water table
146cm
Forest
2%
Crops
75%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)