Dunav
IUCN Not AssignedState Game Husbandries · 2002
1 435 km²
Province · bgr
Ruse
Bulgaria
DfaCold, no dry season, hot summer(59 %)
Species observed
1 332
Observations
22 450
Area
2 724,7km²
Ecological tissue
Sample of 39 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 Ruse : 30 espèces reliées par 82 interactions GloBI sur 3 types (connectance 11.1%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
39
Interactions affichées
82
Connectance
0.111
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 332 distinct species · 22 450 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,0°C
Annual rain
631mm
Warmest m°
27,7°C
Coldest m°
-3,7°C
Elevation: 153 m on average (min 14 m, max 412 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,0°C
Annual rain
631mm
Warmest month
27,7°C
Coldest month
-3,7°C
Mean alt.
153m
Min
14m
Max
412m
Std. dev.
80m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(59 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,8
Org. C
25,0g/kg
Clay
40,6%
Sand
8,7%
Silt
50,7%
Average over 0-30 cm. Per-depth details in expert panel.
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,8
Org. C
41,8g/kg
Clay
40,7%
Sand
8,7%
Silt
50,6%
5–15 cm
pH H₂O
6,8
Org. C
17,9g/kg
Clay
41,5%
Sand
8,4%
Silt
50,0%
15–30 cm
pH H₂O
6,8
Org. C
15,5g/kg
Clay
39,6%
Sand
9,0%
Silt
51,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest14.0%
Crops66.3%
Built-up0.6%
Bare soil0.3%
Other (grassland, water…)18.8%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology16 basins · 4 lakes · 16 rivers
Hydrology metrics for this exact territory
Stream length here
356,9km
Lake surface here
2,21km²
Basins crossed
16
Max stream order
8
Max drainage
654 498km²
Discharge in basins
13 658,8m³/s
Mean precip.
602mm/an
Mean T°
10,8°C
Moisture idx
-0,38
Max snow
12%
Mean runoff
133mm/an
Mean elev. (basins)
162m
Watersheds crossing here
- Bassin de Черни Ломsub-area1 542,6 km²overlap506.95 km²19%
- Bassin de Dunărea - Дунавsub-area660,4 km²overlap470.81 km²17%
- Bassin de р. Сараджийскаsub-area454 km²overlap451.79 km²17%
- Bassin de Янтраsub-area595,4 km²overlap375.55 km²14%
- Bassin de Топчийска рекаsub-area693,6 km²overlap350.01 km²13%
- Bassin de Dunărea - Дунавsub-area372,8 km²overlap159.91 km²6%
- Bassin de Русенски Ломsub-area123,6 km²overlap123.87 km²5%
- Bassin de Бели Ломsub-area955,1 km²overlap99.37 km²4%
- Bassin de Dunărea - Дунавsub-area143,9 km²overlap44.48 km²2%
7 more basinssorted by overlap
- Bassin de Студената рекаsub-area429,7 km²overlap42.36 km²2%
- Bassin de Dunărea - Дунавsub-area40,8 km²overlap35.05 km²1%
- Bassin de Бели Ломsub-area21,9 km²overlap21.95 km²1%
- Bassin de Малък Ломsub-area331,3 km²overlap17.40 km²1%
- Bassin de Dunărea - Дунавsub-area11,2 km²overlap11.27 km²0%
- Bassin de Călmățuisub-area2 682,4 km²overlap9.78 km²0%
- Bassin de Dunărea - Дунавsub-area195,3 km²overlap4.14 km²0%
Lakes (4, top by area)
Rivers / streams (16, ord ≥ 4)
- Dunărea - Дунавord 8len here72.65 km10%total752 km
- Янтраord 5len here63.00 km24%total267 km
- Черни Ломord 4len here42.10 km40%total104 km
- Баниски Ломord 3len here35.78 km52%total69 km
- Русенски Ломord 8len here34.31 km95%total36 km
- Бели Ломord 4len here29.96 km23%total130 km
- Топчийска рекаord 3len here25.24 km62%total40 km
- р. Сараджийскаord 1len here15.81 km100%total16 km
- Черни ломord 4len here11.21 km100%total11 km
- Каяджикord 2len here9.17 km39%total23 km
- Боромлийско дереord 1len here8.06 km76%total11 km
- Студената рекаord 3len here5.98 km10%total60 km
4 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,7nW
Built-up
61,5%
Pesticides
6,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas37
IUCN Not Reported · 18IUCN VI · 11IUCN III · 3IUCN Not Assigned · 2IUCN V · 1IUCN IV · 1IUCN Ia · 1
Cherni Lom
IUCN Not AssignedState Game Husbandries · 2002
1 092 km²
Ludogorie
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2007
914 km²
Ludogorie
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2020
595 km²
Lomovete
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2007
335 km²
Lomovete
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2020
325 km²
Complete list37 protected areas
- DunavState Game HusbandriesIUCN Not Assigned20021 435 km²
- Cherni LomState Game HusbandriesIUCN Not Assigned20021 092 km²
- LudogorieSpecial Protection Area (Birds Directive)IUCN Not Reported2007914 km²
- LudogorieSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2020595 km²
- LomoveteSpecial Protection Area (Birds Directive)IUCN Not Reported2007335 km²
- LomoveteSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2020325 km²
- Vedea - DunăreSpecial Protection Area (Birds Directive)IUCN Not Reported2007224 km²
- Reka YantraSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2016139 km²
- Gura Vedei - Șaica - SloboziaSite of Community Importance (Habitats Directive)IUCN Not Reported2009101 km²
- Kompleks KalimokSpecial Protection Area (Birds Directive)IUCN Not Reported200794 km²
- Kalimok - BrashlenSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported202076 km²
- Kalimok - BrashlenProtected SiteIUCN VI200157 km²
- Studena rekaSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported202153 km²
- Belenska goraSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported202050 km²
- Rusenski LomNature ParkIUCN V197035 km²
- BatinSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported202027 km²
- Ribarnitsi MechkaSpecial Protection Area (Birds Directive)IUCN Not Reported200726 km²
- Ostrovu Lung - GostinuSpecial Protection Area (Birds Directive)IUCN Not Reported200725 km²
- Cama - Dinu - PăsăricaNature reserveIUCN IV200724 km²
- Marten - RyahovoSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported202012 km²
- Ostrov VardimSpecial Protection Area (Birds Directive)IUCN Not Reported200712 km²
- Ostrov VardimSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported202112 km²
- Beli LomStrict Nature ReserveIUCN Ia19808 km²
- Komleks Aleko - TelikaProtected SiteIUCN VI20044 km²
- LomiyaProtected SiteIUCN VI20073 km²
- Orlova chukaNatural MonumentIUCN III19621 km²
- Porechieto na reka Topchiisko dereNatural MonumentIUCN III19761 km²
- StalpishteProtected SiteIUCN VI20180 km²
- Nahodishte na Uehtritsova uroka - s. OstritsaProtected SiteIUCN VI20130 km²
- Basarbovski stepiProtected SiteIUCN VI20240 km²
- Doichov ostrovProtected SiteIUCN VI20070 km²
- MiushterekaProtected SiteIUCN VI19760 km²
- Estestveno nahodishte na Krimska kakula (Salvia scabiosifolia)Protected SiteIUCN VI20060 km²
- DekilitazhNatural MonumentIUCN III19700 km²
- Nahodishte na balgarska garlitsa - s. KaramanovoProtected SiteIUCN VI20130 km²
- Bozhkova dupkaSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20150 km²
- Nahodishte na obiknoven sladnikProtected SiteIUCN VI19760 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN