Ontologia

HydroBASINS lev08 watershed · #2080417640

Bassin de San

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 : Biłgoraj, Leżajsk, Nisko

Pfafstetter: 24244707

Sub-basin area

156,9km²

Upstream area

12 854,6km²

Discharge

90,6m³/s

Mean elev.

172m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Stróżanka36 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

562 distinct species · 2 765 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 765 obs · 4 cellules
Obs. / cellule
≥ 1 032
1 032–1 031
868–1 031
868–867
< 868

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

Ecological tissue

Sample of 29 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 San : 22 espèces reliées par 57 interactions GloBI sur 5 types (connectance 14.0%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
57
Connectance
0.140
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°

7,8°C

Annual rain

574mm

Moisture idx (CMI)

-0,24

Runoff

152mm/an

PET

756mm

AET

489mm

Mean slope

0,9°

Water table

110cm

Forest

33%

Crops

39%

Urban

6%

Protected

0%

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