Ontologia

HydroBASINS lev08 watershed · #2080342260

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 2 administrative regions : Krasnoyarskiy rayon, Volzhskiy rayon

10% lakePfafstetter: 28317030

Sub-basin area

52,2km²

Upstream area

1 207 305,8km²

Discharge

7 741,88m³/s

Mean elev.

123m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Волга236 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

  • Volzhskiy rayon
    Samara · Russia
    44.8 km²
    85.5% of basin
  • Krasnoyarskiy rayon
    Samara · Russia
    7.6 km²
    14.5% of basin

2 intersecting protected areas

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

Species present

472 distinct species · 1 339 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 339 obs · 1 cellules
Obs. / cellule
≥ 1 339
1 339–1 338
1 339–1 338
1 339–1 338
< 1 339

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 : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 75 interactions GloBI sur 6 types (connectance 12.6%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
75
Connectance
0.126
Patrimoniales
1
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°

4,4°C

Annual rain

528mm

Moisture idx (CMI)

-0,25

Runoff

102mm/an

PET

705mm

AET

445mm

Mean slope

5,0°

Water table

225cm

Forest

62%

Crops

12%

Urban

20%

Protected

50%

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