HydroBASINS lev08 watershed · #8080154390
Bassin de Ионивээм
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 : Chukotskiy rayon, Providenskiy rayon
Sub-basin area
1 746,2km²
Upstream area
4 688,3km²
Discharge
95,3m³/s
Mean elev.
128m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Анонайваам343 km²
- Bassin de Ионивээм54 km²
2 dept-equivalent regions (GADM L2)
- 946.5 km²53.8% of basin
- 811.4 km²46.2% of basin
1 intersecting protected areas
Beringiya
IUCN IbNational Park
718.31 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
364 distinct species · 537 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 Ионивээм : 13 espèces reliées par 14 interactions GloBI sur 1 type (connectance 9.2%, 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°
-6,4°C
Annual rain
461mm
Moisture idx (CMI)
0,47
Runoff
496mm/an
PET
245mm
AET
216mm
Mean slope
6,1°
Water table
178cm
Forest
0%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)