Ontologia

HydroBASINS lev08 watershed · #2080362380

Bassin de Płonka

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 3 administrative regions : Ciechanów, Płock, Płońsk

Pfafstetter: 24246003

Sub-basin area

536,8km²

Upstream area

4 820,8km²

Discharge

27,53m³/s

Mean elev.

114m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Wkra398 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

380 distinct species · 1 010 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 010 obs · 15 cellules
Obs. / cellule
≥ 269
159–268
77–158
41–76
< 41

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

Ecological tissue

Sample of 32 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 Płonka : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 86 interactions GloBI sur 5 types (connectance 16.3%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
86
Connectance
0.163
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°

7,5°C

Annual rain

537mm

Moisture idx (CMI)

-0,26

Runoff

157mm/an

PET

725mm

AET

457mm

Mean slope

0,6°

Water table

54cm

Forest

4%

Crops

68%

Urban

3%

Protected

0%

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