Ontologia

HydroBASINS lev08 watershed · #2080374800

Bassin de Krzna

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 1 administrative regions : Biała Podlaska

Pfafstetter: 24249601

Sub-basin area

171,8km²

Upstream area

3 142,9km²

Discharge

12,05m³/s

Mean elev.

144m

Administrative coverage

Hydrographic chain

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

7 intersecting protected areas

  • Podlaski Przełom Bugu

    IUCN V

    Landscape Park

    18.59 km² overlap

  • Dolina Krzny

    IUCN Not Reported

    Site of Community Importance (Habitats Directive)

    2.03 km² overlap

  • Dobryń

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.88 km² overlap

  • Dobryń

    IUCN IV

    Nature Reserve

    0.88 km² overlap

  • Dolina Dolnego Bugu

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.35 km² overlap

  • Ostoja Nadbużańska

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.06 km² overlap

  • Czapli Stóg

    IUCN IV

    Nature Reserve

    0.02 km² overlap

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

Species present

588 distinct species · 3 451 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 451 obs · 5 cellules
Obs. / cellule
≥ 1 562
1 562–1 561
951–1 561
640–950
< 640

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

Ecological tissue

Sample of 19 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 Krzna : 15 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 47 interactions GloBI sur 4 types (connectance 24.7%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
20
Interactions affichées
47
Connectance
0.247
Patrimoniales
2
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°

7,4°C

Annual rain

537mm

Moisture idx (CMI)

-0,27

Runoff

121mm/an

PET

736mm

AET

458mm

Mean slope

0,8°

Water table

110cm

Forest

12%

Crops

43%

Urban

0%

Protected

11%

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