Ontologia

HydroBASINS lev08 watershed · #2080584890

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 11 administrative regions : Berkovitsa, Botevgrad, Elin Pelin, Godech, Kostinbrod +6

Pfafstetter: 22737203

Sub-basin area

1 683,7km²

Upstream area

5 116,7km²

Discharge

35,47m³/s

Mean elev.

771m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Искър2106 km²

▲ Receives from 2 basins

11 dept-equivalent regions (GADM L2)

3 more

30 intersecting protected areas

  • Zapadna Stara planina i Predbalkan

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    277.46 km² overlap

  • Iskarski prolom - Rzhana

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    210.06 km² overlap

  • Ponor

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    185.38 km² overlap

  • Vrachanski Balkan

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    131.33 km² overlap

  • Vrachanski balkan

    IUCN V

    Nature Park

    112.02 km² overlap

  • Vrachanski Balkan

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    105.66 km² overlap

  • Vitinia

    IUCN Not Assigned

    State Game Husbandries

    37.36 km² overlap

  • Zapaden Balkan

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    12.84 km² overlap

  • Treskavetz

    IUCN VI

    Protected Site

    10.71 km² overlap

21 more protected areas

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

Species present

1 818 distinct species · 52 396 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

52 396 obs · 44 cellules
Obs. / cellule
≥ 16 424
3 390–16 423
796–3 389
372–795
< 372

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

Ecological tissue

Sample of 24 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 : 15 espèces reliées par 61 interactions GloBI sur 3 types (connectance 22.1%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
61
Connectance
0.221
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°

8,6°C

Annual rain

670mm

Moisture idx (CMI)

-0,22

Runoff

181mm/an

PET

871mm

AET

566mm

Mean slope

14,1°

Water table

608cm

Forest

61%

Crops

13%

Urban

2%

Protected

8%

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