HydroBASINS lev08 watershed · #3080018400
Bassin de Вархалам
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 1 administrative regions : Severo-Evenskiy rayon
Sub-basin area
2 367km²
Upstream area
2 367km²
Discharge
0,92m³/s
Mean elev.
207m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 2342.8 km²98.4% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
352 distinct species · 544 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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 Вархалам : 18 espèces reliées par 30 interactions GloBI sur 4 types (connectance 7.9%, 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°
-8,0°C
Annual rain
400mm
Moisture idx (CMI)
-0,02
Runoff
232mm/an
PET
408mm
AET
314mm
Mean slope
7,9°
Water table
135cm
Forest
12%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)