Ontologia

HydroBASINS lev08 watershed · #2080590540

Bassin de Искър

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 5 administrative regions : Elin Pelin, Ihtiman, Kostenets, Samokov, Stolichna

43% lakePfafstetter: 22737207

Sub-basin area

594,3km²

Upstream area

1 431,9km²

Discharge

12,08m³/s

Mean elev.

940m

Administrative coverage

Hydrographic chain

▲ Receives from 2 basins

5 dept-equivalent regions (GADM L2)

17 intersecting protected areas

  • Vitosha

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    55.06 km² overlap

  • Vitosha

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    55.06 km² overlap

  • Vitosha

    IUCN V

    Nature Park

    54.84 km² overlap

  • Iskar

    IUCN Not Assigned

    State Game Husbandries

    49.35 km² overlap

  • Plana

    IUCN Not Reported

    Site of Community Importance (Habitats Directive)

    28.02 km² overlap

  • Bistrishko branishte

    IUCN Ia

    Strict Nature Reserve

    10.57 km² overlap

  • Lozenska planina

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    6.87 km² overlap

  • Vitoshko-Studena

    IUCN Not Assigned

    State Game Husbandries

    1.80 km² overlap

  • Dolni Bogrov - Kazichene

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    1.03 km² overlap

8 more protected areas

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

Species present

3 872 distinct species · 67 929 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

67 929 obs · 13 cellules
Obs. / cellule
≥ 22 863
13 321–22 862
10 109–13 320
1 969–10 108
< 1 969

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

Ecological tissue

Sample of 35 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 Искър : 25 espèces reliées par 70 interactions GloBI sur 4 types (connectance 11.8%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
70
Connectance
0.118
Patrimoniales
0
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°

8,1°C

Annual rain

612mm

Moisture idx (CMI)

-0,28

Runoff

242mm/an

PET

860mm

AET

519mm

Mean slope

7,4°

Water table

416cm

Forest

48%

Crops

13%

Urban

20%

Protected

39%

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