HydroBASINS lev08 watershed · #2080183250
Bassin de Колвас
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 across 2 countries : Kainuu, Muyezerskiy rayon
Sub-basin area
2 442,4km²
Upstream area
3 850,1km²
Discharge
37,07m³/s
Mean elev.
197m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Юдало788 km²
- Bassin de Немийоки620 km²
2 dept-equivalent regions (GADM L2)
- 2439.3 km²99.2% of basin
- 18.5 km²0.8% of basin
2 intersecting protected areas
Ulvinsalon alue
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.75 km² overlap
Strict Nature Reserve
11.31 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 407 distinct species · 5 810 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Колвас : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 59 interactions GloBI sur 5 types (connectance 8.4%, filtre Serrano α=0.2). 12 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°
0,8°C
Annual rain
608mm
Moisture idx (CMI)
0,23
Runoff
306mm/an
PET
466mm
AET
382mm
Mean slope
2,3°
Water table
111cm
Forest
72%
Crops
0%
Urban
0%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)