Ontologia

HydroBASINS lev08 watershed · #2080362220

Bassin de Sona

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 6 administrative regions : Ciechanów, Maków, Nowy Dwór Mazowiecki, Przasnysz, Pułtusk +1

Pfafstetter: 24246002

Sub-basin area

699,7km²

Upstream area

699,8km²

Discharge

3,72m³/s

Mean elev.

118m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Wkra398 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

6 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

472 distinct species · 1 838 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 838 obs · 22 cellules
Obs. / cellule
≥ 336
220–335
76–219
60–75
< 60

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

Ecological tissue

Sample of 35 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 Sona : 18 espèces reliées par 116 interactions GloBI sur 5 types (connectance 16.5%, filtre Serrano α=0.2). 20 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
116
Connectance
0.165
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°

7,3°C

Annual rain

536mm

Moisture idx (CMI)

-0,25

Runoff

168mm/an

PET

718mm

AET

456mm

Mean slope

0,6°

Water table

61cm

Forest

3%

Crops

70%

Urban

0%

Protected

0%

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