Ontologia

HydroBASINS lev08 watershed · #2080357640

Bassin de Wełna

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 : Oborniki

Pfafstetter: 24227045

Sub-basin area

2,2km²

Upstream area

1 544,9km²

Discharge

5,34m³/s

Mean elev.

71m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Wełna122 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

1 intersecting protected areas

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

Species present

581 distinct species · 18 431 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

18 431 obs · 1 cellules
Obs. / cellule
≥ 18 431
18 431–18 430
18 431–18 430
18 431–18 430
< 18 431

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

Ecological tissue

Sample of 38 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 Wełna : 28 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 5 types (connectance 11.2%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
79
Connectance
0.112
Patrimoniales
3
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°

8,0°C

Annual rain

542mm

Moisture idx (CMI)

-0,25

Runoff

110mm/an

PET

727mm

AET

461mm

Mean slope

0,6°

Water table

21cm

Forest

0%

Crops

67%

Urban

16%

Protected

0%

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