Ontologia

HydroBASINS lev08 watershed · #2080358900

Bassin de Wkra

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 4 administrative regions : Ciechanów, Mława, Płońsk, Żuromin

Pfafstetter: 24246007

Sub-basin area

565,7km²

Upstream area

2 938,6km²

Discharge

17,59m³/s

Mean elev.

115m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Wkra2 km²

▲ Receives from 2 basins

4 dept-equivalent regions (GADM L2)

5 intersecting protected areas

  • Nadwkrzański

    IUCN Not Assigned

    Protected Landscape Area

    498.60 km² overlap

  • Doliny Wkry i Mławki

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    17.56 km² overlap

  • Lekowo

    IUCN IV

    Nature Reserve

    0.06 km² overlap

  • Dziektarzewo

    IUCN IV

    Nature Reserve

    0.05 km² overlap

  • Modła

    IUCN IV

    Nature Reserve

    0.04 km² overlap

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

Species present

634 distinct species · 2 176 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 176 obs · 18 cellules
Obs. / cellule
≥ 592
320–591
103–319
83–102
< 83

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

Ecological tissue

Sample of 36 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 Wkra : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 96 interactions GloBI sur 6 types (connectance 14.4%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
96
Connectance
0.144
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°

7,2°C

Annual rain

556mm

Moisture idx (CMI)

-0,22

Runoff

173mm/an

PET

714mm

AET

471mm

Mean slope

0,7°

Water table

65cm

Forest

13%

Crops

54%

Urban

0%

Protected

0%

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