Ontologia

HydroBASINS lev08 watershed · #2080028860

Bassin de Siuntionjoki

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 : Uusimaa

35% lakePfafstetter: 24351038

Sub-basin area

439,5km²

Upstream area

439,5km²

Discharge

5,11m³/s

Mean elev.

50m

Administrative coverage

1 dept-equivalent regions (GADM L2)

30 intersecting protected areas

21 more protected areas

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

Species present

6 132 distinct species · 218 018 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

218 018 obs · 15 cellules
Obs. / cellule
≥ 46 250
30 557–46 249
16 664–30 556
13 496–16 663
< 13 496

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

Ecological tissue

Sample of 33 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 Siuntionjoki : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 91 interactions GloBI sur 6 types (connectance 17.2%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
91
Connectance
0.172
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°

4,8°C

Annual rain

628mm

Moisture idx (CMI)

0,13

Runoff

381mm/an

PET

547mm

AET

418mm

Mean slope

3,7°

Water table

184cm

Forest

75%

Crops

0%

Urban

6%

Protected

2%

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