Ontologia

HydroBASINS lev08 watershed · #2080243430

Bassin de Otra

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 : Bykle, Hjelmeland, Suldal

193% lakePfafstetter: 25107404

Sub-basin area

404,3km²

Upstream area

404,3km²

Discharge

18,63m³/s

Mean elev.

1 078m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Otra1549 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

863 distinct species · 4 728 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 728 obs · 16 cellules
Obs. / cellule
≥ 1 030
971–1 029
298–970
195–297
< 195

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

Ecological tissue

Sample of 27 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 Otra : 17 espèces reliées par 54 interactions GloBI sur 3 types (connectance 12.4%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
54
Connectance
0.124
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

1 766mm

Moisture idx (CMI)

0,79

Runoff

1 487mm/an

PET

373mm

AET

373mm

Mean slope

9,1°

Water table

423cm

Forest

16%

Crops

0%

Urban

0%

Protected

66%

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