Ontologia

HydroBASINS lev08 watershed · #2080036480

Bassin de Ogna

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 : Snåsa, Steinkjer, Verdal

86% lakePfafstetter: 25107980

Sub-basin area

2 275,3km²

Upstream area

2 275,3km²

Discharge

76,93m³/s

Mean elev.

319m

Administrative coverage

3 dept-equivalent regions (GADM L2)

30 intersecting protected areas

21 more protected areas

  • Muusdalan

    IUCN Ia

    Nature Reserve

    3.44 km² overlap

  • Breivatnet

    IUCN Not Reported

    Emerald Network

    3.19 km² overlap

  • Breivatnet

    IUCN Ia

    Nature Reserve

    3.19 km² overlap

  • Bergsåsen

    IUCN Ia

    Nature Reserve

    2.84 km² overlap

  • Kjenstad

    IUCN V

    Protected Landscape

    2.72 km² overlap

  • Kolåsen

    IUCN Ia

    Nature Reserve

    2.47 km² overlap

  • Møytlaskardet

    IUCN Ia

    Nature Reserve

    2.22 km² overlap

  • Finnsåsmarka

    IUCN Ia

    Nature Reserve

    1.45 km² overlap

  • Lystjønna

    IUCN Ia

    Nature Reserve

    1.11 km² overlap

  • Blomliseteren

    IUCN Ia

    Nature Reserve

    1.07 km² overlap

  • Bergsåsen

    IUCN Not Reported

    Emerald Network

    0.75 km² overlap

  • Vegsetlia

    IUCN Ia

    Nature Reserve

    0.63 km² overlap

  • Møytla

    IUCN Ia

    Nature Reserve

    0.60 km² overlap

  • Okstadmyra

    IUCN Not Reported

    Emerald Network

    0.57 km² overlap

  • Okstadmyra

    IUCN Ia

    Nature Reserve

    0.57 km² overlap

  • Kvitmyra

    IUCN Ia

    Nature Reserve

    0.48 km² overlap

  • Kvitmyra

    IUCN Not Reported

    Emerald Network

    0.48 km² overlap

  • Stormyra

    IUCN Ia

    Nature Reserve

    0.41 km² overlap

  • Stormyra

    IUCN Not Reported

    Emerald Network

    0.41 km² overlap

  • Byhalla

    IUCN Ia

    Nature Reserve

    0.38 km² overlap

  • Byhalla

    IUCN Not Reported

    Emerald Network

    0.38 km² overlap

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

Species present

7 630 distinct species · 204 255 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

204 255 obs · 102 cellules
Obs. / cellule
≥ 24 368
4 865–24 367
937–4 864
411–936
< 411

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 Ogna : 31 espèces dont 6 patrimoniales (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 6 types (connectance 11.2%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
79
Connectance
0.112
Patrimoniales
6
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°

3,3°C

Annual rain

1 182mm

Moisture idx (CMI)

0,63

Runoff

1 075mm/an

PET

442mm

AET

417mm

Mean slope

7,1°

Water table

247cm

Forest

52%

Crops

0%

Urban

0%

Protected

16%

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