Ontologia

HydroBASINS lev08 watershed · #2080241490

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 2 administrative regions : Bykle, Suldal

170% lakePfafstetter: 25107406

Sub-basin area

252,9km²

Upstream area

252,9km²

Discharge

10,81m³/s

Mean elev.

1 120m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Otra121 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

592 distinct species · 2 974 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 974 obs · 9 cellules
Obs. / cellule
≥ 1 239
1 239–1 238
460–1 238
213–459
< 213

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 Otra : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 65 interactions GloBI sur 3 types (connectance 9.8%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
65
Connectance
0.098
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°

0,2°C

Annual rain

1 710mm

Moisture idx (CMI)

0,78

Runoff

1 401mm/an

PET

373mm

AET

372mm

Mean slope

8,9°

Water table

405cm

Forest

19%

Crops

0%

Urban

0%

Protected

84%

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