HydroBASINS lev08 watershed · #2080302590
Bassin de Перамерка
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 : Myory, Polatsak, Vyerkhnyazdvinsk
Sub-basin area
107,7km²
Upstream area
43 696,8km²
Discharge
323,93m³/s
Mean elev.
126m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Нача383 km²
- Bassin de Заходняя Дзвіна86 km²
3 dept-equivalent regions (GADM L2)
- VyerkhnyazdvinskVitebsk · Belarus49.8 km²46.0% of basin
- 34.7 km²32.1% of basin
- 23.7 km²21.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
78 distinct species · 89 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Перамерка : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 5 types (connectance 6.8%, filtre Serrano α=0.2). 5 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°
5,5°C
Annual rain
636mm
Moisture idx (CMI)
-0,02
Runoff
225mm/an
PET
651mm
AET
494mm
Mean slope
1,2°
Water table
83cm
Forest
43%
Crops
23%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)