Ontologia

HydroBASINS lev08 watershed · #2080116710

Bassin de Silisjohka

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 across 2 countries : Lapland, Nesseby, Sør-Varanger

47% lakePfafstetter: 25210806

Sub-basin area

426,9km²

Upstream area

426,9km²

Discharge

4,42m³/s

Mean elev.

249m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Näätämöjoki276 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

371 distinct species · 3 427 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 427 obs · 13 cellules
Obs. / cellule
≥ 716
554–715
409–553
255–408
< 255

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

Ecological tissue

Sample of 36 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 Silisjohka : 27 espèces reliées par 69 interactions GloBI sur 4 types (connectance 11.0%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
69
Connectance
0.110
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°

-0,6°C

Annual rain

463mm

Moisture idx (CMI)

0,26

Runoff

325mm/an

PET

344mm

AET

293mm

Mean slope

2,8°

Water table

142cm

Forest

1%

Crops

0%

Urban

0%

Protected

89%

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