Ontologia

HydroBASINS lev08 watershed · #2080037430

Bassin de Sagelva

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 4 administrative regions : Hamarøy, Steigen, Sørfold, Tysfjord

138% lakePfafstetter: 25109952

Sub-basin area

299,3km²

Upstream area

299,4km²

Discharge

17,62m³/s

Mean elev.

450m

Administrative coverage

4 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

1 199 distinct species · 5 671 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 671 obs · 12 cellules
Obs. / cellule
≥ 903
842–902
616–841
425–615
< 425

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

Ecological tissue

Sample of 37 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 Sagelva : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 59 interactions GloBI sur 6 types (connectance 8.4%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
59
Connectance
0.084
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°

1,3°C

Annual rain

1 176mm

Moisture idx (CMI)

0,70

Runoff

1 514mm/an

PET

358mm

AET

345mm

Mean slope

15,0°

Water table

403cm

Forest

43%

Crops

0%

Urban

0%

Protected

6%

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