Ontologia

HydroBASINS lev08 watershed · #2080280390

Bassin de Волга

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 : Kalininskiy rayon, Staritskiy rayon, Torzhokskiy rayon

Pfafstetter: 28367905

Sub-basin area

659,6km²

Upstream area

22 273,2km²

Discharge

169,62m³/s

Mean elev.

158m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Волга116 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

4 intersecting protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

763 distinct species · 2 204 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 204 obs · 20 cellules
Obs. / cellule
≥ 691
425–690
104–424
44–103
< 44

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Волга : 26 espèces reliées par 101 interactions GloBI sur 5 types (connectance 16.0%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
101
Connectance
0.160
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

4,2°C

Annual rain

619mm

Moisture idx (CMI)

-0,02

Runoff

216mm/an

PET

633mm

AET

484mm

Mean slope

1,4°

Water table

107cm

Forest

54%

Crops

24%

Urban

0%

Protected

2%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)