Ontologia

HydroBASINS lev08 watershed · #2080033700

Bassin de Øhrebekken

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 : Borre, Holmestrand, Nøtterøy, Sande, Tjøme +2

Coastal basin 5% lakePfafstetter: 25105003

Sub-basin area

323km²

Upstream area

323,1km²

Discharge

6,45m³/s

Mean elev.

33m

Administrative coverage

7 dept-equivalent regions (GADM L2)

30 intersecting protected areas

21 more protected areas

  • Rød-Dirhue

    IUCN V

    Protected Landscape

    0.61 km² overlap

  • Bogen

    IUCN Ia

    Nature Reserve

    0.57 km² overlap

  • Bogen

    IUCN Not Reported

    Emerald Network

    0.57 km² overlap

  • Buvika/Rødskjær

    IUCN Ia

    Nature Reserve

    0.48 km² overlap

  • Adalstjern

    IUCN Not Reported

    Emerald Network

    0.37 km² overlap

  • Adalstjern

    IUCN Ia

    Nature Reserve

    0.37 km² overlap

  • Storemyr - Fagerbakken

    IUCN IV

    Protected Landscape

    0.29 km² overlap

  • Gullkronene

    IUCN Ia

    Nature Reserve

    0.27 km² overlap

  • Fjugstad

    IUCN Ia

    Nature Reserve

    0.27 km² overlap

  • Mulåsen

    IUCN Ia

    Nature Reserve

    0.21 km² overlap

  • Mulåsen

    IUCN Not Reported

    Emerald Network

    0.21 km² overlap

  • Karljohansvern

    IUCN IV

    Wildlife/Botanical Conservation Area

    0.15 km² overlap

  • Bliksekilen

    IUCN Ia

    Nature Reserve

    0.13 km² overlap

  • Tangenbekken

    IUCN Ia

    Nature Reserve

    0.12 km² overlap

  • Vealøs

    IUCN Ia

    Nature Reserve

    0.11 km² overlap

  • Sandebukta

    IUCN Not Reported

    Emerald Network

    0.10 km² overlap

  • Sandebukta

    IUCN IV

    Protected Landscape

    0.10 km² overlap

  • Pirane

    IUCN Ia

    Nature Reserve

    0.09 km² overlap

  • Løvøya

    IUCN Not Reported

    Emerald Network

    0.08 km² overlap

  • Løvøya

    IUCN Ia

    Nature Reserve

    0.08 km² overlap

  • Falkensten

    IUCN Ia

    Nature Reserve

    0.06 km² overlap

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

Species present

12 184 distinct species · 1 027 570 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 027 570 obs · 12 cellules
Obs. / cellule
≥ 198 348
184 372–198 347
117 567–184 371
80 112–117 566
< 80 112

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

Ecological tissue

Sample of 28 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 Øhrebekken : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 72 interactions GloBI sur 3 types (connectance 19.0%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
72
Connectance
0.191
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°

7,1°C

Annual rain

728mm

Moisture idx (CMI)

0,34

Runoff

645mm/an

PET

483mm

AET

408mm

Mean slope

3,3°

Water table

184cm

Forest

67%

Crops

34%

Urban

20%

Protected

16%

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