HydroBASINS lev08 watershed · #2080395820
Bassin de Анна
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 : Anninskiy rayon
Sub-basin area
132,1km²
Upstream area
4 834,8km²
Discharge
17,27m³/s
Mean elev.
133m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Битюг748 km²
- Bassin de Курлак693 km²
1 dept-equivalent regions (GADM L2)
- 132.6 km²100.0% of basin
2 intersecting protected areas
Uchastok r. Bityug
IUCN IIINatural Monument
8.26 km² overlap
Urochishhe Strelica
IUCN IIINatural Monument
0.22 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
78 distinct species · 91 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Анна : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 40 interactions GloBI sur 5 types (connectance 7.1%, filtre Serrano α=0.2). 4 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°
6,3°C
Annual rain
501mm
Moisture idx (CMI)
-0,36
Runoff
99mm/an
PET
783mm
AET
427mm
Mean slope
1,2°
Water table
196cm
Forest
58%
Crops
33%
Urban
13%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)