HydroBASINS lev08 watershed · #8080021260
Bassin de Атчиваврэр
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 : Chukotskiy rayon
Sub-basin area
425,8km²
Upstream area
425,8km²
Discharge
2,84m³/s
Mean elev.
37m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 428.8 km²100.0% of basin
1 intersecting protected areas
Beringiya
IUCN IbNational Park
99.75 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
88 distinct species · 176 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 Атчиваврэр : 14 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 25 interactions GloBI sur 2 types (connectance 13.2%, filtre Serrano α=0.2). 6 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°
-7,3°C
Annual rain
343mm
Moisture idx (CMI)
0,33
Runoff
212mm/an
PET
230mm
AET
198mm
Mean slope
3,9°
Water table
77cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)