Ontologia

HydroBASINS lev08 watershed · #2080033790

Bassin de Storelva

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 7 administrative regions : Bamble, Drangedal, Gjerstad, Kragerø, Kviteseid +2

53% lakePfafstetter: 25107102

Sub-basin area

1 236,5km²

Upstream area

1 236,5km²

Discharge

27,1m³/s

Mean elev.

324m

Administrative coverage

7 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

7 318 distinct species · 132 511 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

132 511 obs · 47 cellules
Obs. / cellule
≥ 41 806
5 428–41 805
2 026–5 427
1 236–2 025
< 1 236

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

Ecological tissue

Sample of 43 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 Storelva : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 99 interactions GloBI sur 7 types (connectance 10.5%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
44
Interactions affichées
99
Connectance
0.105
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°

4,9°C

Annual rain

882mm

Moisture idx (CMI)

0,44

Runoff

737mm/an

PET

492mm

AET

436mm

Mean slope

8,9°

Water table

394cm

Forest

94%

Crops

0%

Urban

0%

Protected

5%

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