HydroBASINS lev08 watershed · #3080011570
Bassin de Янранайваам
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 : Chaunskiy rayon
Sub-basin area
1 611,2km²
Upstream area
1 611,2km²
Discharge
1,55m³/s
Mean elev.
260m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 1557.4 km²95.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
335 distinct species · 647 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Янранайваам : 14 espèces reliées par 84 interactions GloBI sur 2 types (connectance 16.9%, filtre Serrano α=0.2). 18 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°
-14,9°C
Annual rain
167mm
Moisture idx (CMI)
-0,41
Runoff
167mm/an
PET
287mm
AET
171mm
Mean slope
11,0°
Water table
205cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)