Volga Delta
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 1976
10 647 km²
Republic · rus
Russia
Species observed
2 904
Observations
44 740
Area
74 538,3km²
Sample of 32 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).
Tissu écologique de Kalmyk : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 4 bulles famille, 49 interactions GloBI documentées sur 3 types (connectance 9.9%, filtre Serrano α=0.2). Les 4 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
2 904 distinct species · 44 740 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
10,6°C
Annual rain
325mm
Warmest m°
31,0°C
Coldest m°
-6,3°C
Elevation: 20 m on average (min -30 m, max 214 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
7,6
Org. C
30,7g/kg
Clay
33,1%
Sand
27,1%
Silt
39,8%
Average over 0-30 cm. Per-depth details in expert panel.
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology metrics for this exact territory
Stream length here
4 368,4km
Lake surface here
1 276,01km²
Basins crossed
124
Max stream order
9
Max drainage
1 404 108km²
Discharge in basins
3 689,3m³/s
Mean precip.
294mm/an
Mean T°
9,8°C
Moisture idx
-0,69
Max snow
17%
Mean runoff
8mm/an
Mean elev. (basins)
18m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
0hab/km²
Night light
0,0nW
Built-up
3,1%
Pesticides
0,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Wetland of International Importance (Ramsar Site) · 1976
10 647 km²
UNESCO-MAB Biosphere Reserve · 1993
2 895 km²
State Natural Zakaznik · 1987
2 101 km²
State Natural Zakaznik · 1987
1 639 km²
State Natural Zakaznik · 1988
1 125 km²
State Natural Zakaznik · 2000
1 095 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN