Tundzha
IUCN Not AssignedState Game Husbandries · 2023
1 986 km²
City · BGR
Sliven
Bulgaria
CfaTemperate, no dry season, hot summer(60 %)
Species observed
2 141
Observations
32 197
Area
1 335,4km²
Ecological tissue
Sample of 31 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 Sliven : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 64 interactions GloBI sur 3 types (connectance 13.8%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
31
Interactions affichées
64
Connectance
0.138
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
2 141 distinct species · 32 197 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
11,0°C
Annual rain
632mm
Warmest m°
26,3°C
Coldest m°
-3,3°C
Elevation: 425 m on average (min 132 m, max 1 082 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
11,0°C
Annual rain
632mm
Warmest month
26,3°C
Coldest month
-3,3°C
Mean alt.
425m
Min
132m
Max
1 082m
Std. dev.
263m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(60 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,3
Org. C
30,0g/kg
Clay
33,2%
Sand
28,8%
Silt
37,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,3
Org. C
53,0g/kg
Clay
31,5%
Sand
29,9%
Silt
38,6%
5–15 cm
pH H₂O
6,4
Org. C
21,6g/kg
Clay
32,4%
Sand
29,5%
Silt
38,1%
15–30 cm
pH H₂O
6,3
Org. C
15,5g/kg
Clay
35,8%
Sand
27,1%
Silt
37,1%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest38.2%
Crops35.6%
Built-up0.8%
Bare soil0.6%
Other (grassland, water…)24.8%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology9 basins · 1 lakes · 13 rivers
Hydrology metrics for this exact territory
Stream length here
178,6km
Lake surface here
0,41km²
Basins crossed
9
Max stream order
4
Max drainage
4 149km²
Discharge in basins
18,4m³/s
Mean precip.
645mm/an
Mean T°
10,5°C
Moisture idx
-0,31
Max snow
12%
Mean runoff
133mm/an
Mean elev. (basins)
391m
Watersheds crossing here
- Bassin de Тунджаsub-area901,3 km²overlap797.76 km²60%
- Bassin de Янтраsub-area4 149,4 km²overlap135.18 km²10%
- Bassin de Котлешницаsub-area121,5 km²overlap106.24 km²8%
- Bassin de Беленска рекаsub-area360,4 km²overlap73.41 km²5%
- Bassin de Блатницаsub-area652,1 km²overlap70.28 km²5%
- Bassin de Калницаsub-area852,3 km²overlap61.54 km²5%
- Bassin de Мочурицаsub-area1 275 km²overlap45.29 km²3%
- Bassin de Котлешницаsub-area227,4 km²overlap41.22 km²3%
- Bassin de Тунджаsub-area2 289,5 km²overlap4.46 km²0%
Lakes (1, top by area)
Rivers / streams (13, ord ≥ 4)
- Тунджаord 5len here63.57 km16%total395 km
- Стара рекаord 4len here22.37 km16%total139 km
- Асеновскаord 2len here16.69 km100%total17 km
- Луда Камчияord 5len here16.11 km8%total210 km
- Котлешницаord 3len here15.94 km39%total41 km
- Марашord 3len here9.79 km26%total38 km
- Беглишкаord 2len here9.10 km100%total9 km
- Ирекдереord 1len here8.28 km100%total8 km
- Колешницаord 1len here5.32 km100%total5 km
- Новоселсва рекаord 1len here4.61 km100%total5 km
- Беленска рекаord 3len here3.18 km6%total53 km
- Манастирска рекаord 1len here2.31 km100%total2 km
1 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,8nW
Built-up
75,7%
Pesticides
5,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas34
IUCN Not Reported · 17IUCN VI · 8IUCN III · 6IUCN Not Assigned · 1IUCN V · 1IUCN Ia · 1
Kotlenska planina
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2007
993 km²
Kotlenska planina
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2020
691 km²
Tvardishka planina
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2021
387 km²
Sinite kamani - Grebenets
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2007
158 km²
Sinite kamani
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2020
123 km²
Complete list34 protected areas
- TundzhaState Game HusbandriesIUCN Not Assigned20231 986 km²
- Kotlenska planinaSpecial Protection Area (Birds Directive)IUCN Not Reported2007993 km²
- Kotlenska planinaSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2020691 km²
- Tvardishka planinaSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2021387 km²
- Sinite kamani - GrebenetsSpecial Protection Area (Birds Directive)IUCN Not Reported2007158 km²
- Sinite kamaniSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported2020123 km²
- Sinite kamaniNature ParkIUCN V1980122 km²
- GrebenetsSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported202099 km²
- Reka Tundzha 1Special Areas of Conservation (Habitats Directive)IUCN Not Reported202195 km²
- Reka MochuritsaSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported202187 km²
- Adata - TundzhaSpecial Protection Area (Birds Directive)IUCN Not Reported200756 km²
- Reka Gorna Luda KamchiaSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported202023 km²
- Kermenski vazvisheniaSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported202121 km²
- Kamenski bairSpecial Protection Area (Birds Directive)IUCN Not Reported200717 km²
- Reka BlyagornitsaSite of Community Importance (Habitats Directive)IUCN Not Reported200816 km²
- Reka BlatnitsaSite of Community Importance (Habitats Directive)IUCN Not Reported200810 km²
- KutelkaStrict Nature ReserveIUCN Ia19837 km²
- OrliteProtected SiteIUCN VI20073 km²
- Aglikina polianaProtected SiteIUCN VI19641 km²
- Gora Zhelyu VoyvodaSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20201 km²
- Gora TopolchaneSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20201 km²
- Gora BlatetsSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20200 km²
- Zhelezni vrataProtected SiteIUCN VI19640 km²
- Trakiiski klinProtected SiteIUCN VI20120 km²
- Haydut dereProtected SiteIUCN VI19690 km²
- Debelata koria - s. BlatetsProtected SiteIUCN VI19960 km²
- Lale bairProtected SiteIUCN VI20110 km²
- Dolnata maazaNatural MonumentIUCN III19710 km²
- Piasachnik Haydushkata BachvaNatural MonumentIUCN III19690 km²
- Ostrova na TundjaNatural MonumentIUCN III19760 km²
- Harsov gradProtected SiteIUCN VI19710 km²
- HalkataNatural MonumentIUCN III19690 km²
- Zmeevi dupkiNatural MonumentIUCN III19690 km²
- KushbunarNatural MonumentIUCN III19690 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN