HydroBASINS lev08 watershed · #2080313770
Bassin de Мараса
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 3 administrative regions : Al'keevskiy rayon, Alekseevskiy rayon, Oktyabr'skiy
Sub-basin area
406,3km²
Upstream area
406,3km²
Discharge
1,51m³/s
Mean elev.
145m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 356.5 km²87.4% of basin
- 34.3 km²8.4% of basin
- 17.3 km²4.2% of basin
1 intersecting protected areas
Bilyarskij
IUCN IVState Natural Zakaznik
37.88 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
13 distinct species · 14 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 5 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 Мараса : 5 espèces reliées par 3 interactions GloBI sur 3 types (connectance 30.0%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
3,7°C
Annual rain
549mm
Moisture idx (CMI)
-0,19
Runoff
120mm/an
PET
675mm
AET
457mm
Mean slope
1,0°
Water table
108cm
Forest
40%
Crops
36%
Urban
0%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)