Ontologia

HydroBASINS lev08 watershed · #2080164560

Bassin de Tunnsjøelva

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 : Lierne, Namsskogan, Røyrvik

233% lakePfafstetter: 25108008

Sub-basin area

508,2km²

Upstream area

508,4km²

Discharge

15,46m³/s

Mean elev.

486m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Nesåa1097 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

1 515 distinct species · 7 180 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 180 obs · 23 cellules
Obs. / cellule
≥ 1 131
613–1 130
461–612
212–460
< 212

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

Ecological tissue

Sample of 32 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 Tunnsjøelva : 25 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 63 interactions GloBI sur 5 types (connectance 12.7%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
63
Connectance
0.127
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°

2,4°C

Annual rain

1 285mm

Moisture idx (CMI)

0,67

Runoff

1 000mm/an

PET

417mm

AET

403mm

Mean slope

7,3°

Water table

257cm

Forest

48%

Crops

0%

Urban

0%

Protected

1%

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