Ontologia

HydroBASINS lev08 watershed · #2080599750

Bassin de Стряма

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 10 administrative regions : Apriltsi, Brezovo, Hisar, Kaloyanovo, Karlovo +5

2% lakePfafstetter: 21302940

Sub-basin area

1 563,8km²

Upstream area

1 563,8km²

Discharge

10,56m³/s

Mean elev.

644m

Administrative coverage

Hydrographic chain

▲ Receives from 0 basins

Source / headwater (no upstream basin)

10 dept-equivalent regions (GADM L2)

2 more

28 intersecting protected areas

  • Sredna gora

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    242.85 km² overlap

  • Tsentralen Balkan

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    213.49 km² overlap

  • Tsentralen Balkan

    IUCN II

    National Park

    213.49 km² overlap

  • Tsentralen Balkan

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    213.49 km² overlap

  • Sredna gora

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    197.80 km² overlap

  • Tsentralen Balkan - bufer

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    126.37 km² overlap

  • Tsentralen Balkan bufer

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    98.58 km² overlap

  • Reka Stryama

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    35.76 km² overlap

  • Trakia

    IUCN Not Assigned

    State Game Husbandries

    32.87 km² overlap

19 more protected areas

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

Species present

1 497 distinct species · 32 991 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

32 991 obs · 39 cellules
Obs. / cellule
≥ 16 541
1 272–16 540
508–1 271
203–507
< 203

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 27 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 Стряма : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 52 interactions GloBI sur 3 types (connectance 12.8%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
52
Connectance
0.128
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°

9,2°C

Annual rain

632mm

Moisture idx (CMI)

-0,29

Runoff

206mm/an

PET

909mm

AET

530mm

Mean slope

8,6°

Water table

351cm

Forest

25%

Crops

34%

Urban

2%

Protected

18%

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