Ontologia

HydroBASINS lev08 watershed · #2080575160

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 14 administrative regions : Byala Slatina, Cherven Bryag, Dolna Mitropoliya, Dolni Dabnik, Gulyantsi +9

Pfafstetter: 22737201

Sub-basin area

2 105,5km²

Upstream area

8 511,1km²

Discharge

52,2m³/s

Mean elev.

187m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Dunărea - Дунав5 km²

▲ Receives from 3 basins

14 dept-equivalent regions (GADM L2)

6 more

30 intersecting protected areas

  • Karlukovo

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    288.19 km² overlap

  • Karlukovski karst

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    142.11 km² overlap

  • Reka Iskar

    IUCN Not Reported

    Site of Community Importance (Habitats Directive)

    96.72 km² overlap

  • Konunski dol

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    7.79 km² overlap

  • Karaboaz

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    6.49 km² overlap

  • Yazovir Gorni Dabnik

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.67 km² overlap

  • Dragoitsa

    IUCN VI

    Protected Site

    1.01 km² overlap

  • Cholashki orman

    IUCN VI

    Protected Site

    0.86 km² overlap

  • Tektonski graben-Kaleto

    IUCN III

    Natural Monument

    0.66 km² overlap

21 more protected areas

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

Species present

678 distinct species · 8 315 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 315 obs · 49 cellules
Obs. / cellule
≥ 867
376–866
238–375
137–237
< 137

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

Ecological tissue

Sample of 30 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 : 19 espèces reliées par 74 interactions GloBI sur 4 types (connectance 14.9%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
74
Connectance
0.149
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°

11,3°C

Annual rain

605mm

Moisture idx (CMI)

-0,39

Runoff

128mm/an

PET

990mm

AET

515mm

Mean slope

3,2°

Water table

320cm

Forest

7%

Crops

59%

Urban

1%

Protected

0%

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