Dunav
IUCN Not AssignedState Game Husbandries · 2002
1 435 km²
Municipality · BGR
Bulgaria
Species observed
754
Observations
3 409
Area
248,8km²
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 Tsar Kaloyan : 27 espèces reliées par 65 interactions GloBI sur 3 types (connectance 12.3%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
754 distinct species · 3 409 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
11,6°C
Annual rain
655mm
Warmest m°
27,0°C
Coldest m°
-3,6°C
Elevation: 235 m on average (min 123 m, max 376 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
6,6
Org. C
26,1g/kg
Clay
39,9%
Sand
8,0%
Silt
52,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiM
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
45,5km
Basins crossed
3
Max stream order
3
Max drainage
1 543km²
Discharge in basins
1,2m³/s
Mean precip.
624mm/an
Mean T°
10,2°C
Moisture idx
-0,33
Max snow
10%
Mean runoff
155mm/an
Mean elev. (basins)
283m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
0hab/km²
Night light
0,2nW
Built-up
30,9%
Pesticides
5,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
State Game Husbandries · 2002
1 435 km²
Special Protection Area (Birds Directive) · 2007
335 km²
Special Areas of Conservation (Habitats Directive) · 2020
325 km²
Nature Park · 1970
35 km²
Strict Nature Reserve · 1980
8 km²
Protected Site · 2007
3 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN