HydroBASINS lev08 watershed · #2080282270
Bassin de Большая Коша
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 4 administrative regions : Kuvshinovskiy rayon, Selizharovskiy rayon, Staritskiy rayon, Torzhokskiy rayon
Sub-basin area
779,8km²
Upstream area
779,8km²
Discharge
6,1m³/s
Mean elev.
256m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- Selizharovskiy rayonTver' · Russia318.8 km²40.7% of basin
- Kuvshinovskiy rayonTver' · Russia306.3 km²39.1% of basin
- Staritskiy rayonTver' · Russia152.3 km²19.4% of basin
- Torzhokskiy rayonTver' · Russia6.3 km²0.8% of basin
9 intersecting protected areas
Boloto Moh Mshana
IUCN IVState Natural Zakaznik
26.23 km² overlap
Boloto CHistik (1)
IUCN IVState Natural Zakaznik
14.26 km² overlap
Boloto Ostrovskoe
IUCN IVState Natural Zakaznik
5.57 km² overlap
Boloto Glyzhenskoe
IUCN IVState Natural Zakaznik
3.98 km² overlap
Boloto Morusinskij Moh
IUCN IVState Natural Zakaznik
2.33 km² overlap
Boloto Lytkinskij Moh
IUCN IVState Natural Zakaznik
2.00 km² overlap
Boloto Sen`kovskij Moh
IUCN IVState Natural Zakaznik
1.89 km² overlap
Boloto Gorickoe
IUCN IVState Natural Zakaznik
0.55 km² overlap
Boloto Novskoe
IUCN IVState Natural Zakaznik
0.41 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
55 distinct species · 81 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Большая Коша : 26 espèces reliées par 37 interactions GloBI sur 5 types (connectance 10.5%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
3,6°C
Annual rain
650mm
Moisture idx (CMI)
0,04
Runoff
242mm/an
PET
622mm
AET
484mm
Mean slope
1,2°
Water table
98cm
Forest
93%
Crops
4%
Urban
0%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)