HydroBASINS lev08 watershed · #2080029990

Bassin de Olhavanjoki

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 1 administrative regions : Northern Ostrobothnia

Coastal basinPfafstetter: 24370050

Sub-basin area

527,1km²

Upstream area

527,1km²

Discharge

0,59m³/s

Mean elev.

51m

Administrative coverage

1 dept-equivalent regions (GADM L2)

Northern Ostrobothnia
Oulu · Finland
526.9 km²
99.3% of basin

30 intersecting protected areas

Tuuliaavan-Ison Heposuon soidensuojelualue
IUCN Ib
Protected Mire
12.85 km² overlap
Tuuliaapa- Iso Heposuo
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
10.52 km² overlap
Tuuliaapa- Iso Heposuo
IUCN Not Reported
Special Protection Area (Birds Directive)
10.52 km² overlap
Viitaojanlatvasuo
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
4.94 km² overlap
Iijoen suisto
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
3.34 km² overlap
Takametsän suot
IUCN IV
Private Nature Reserve
3.32 km² overlap
Ison Hirviaavan-Lähteenaavan soidensuojelualue
IUCN Ib
Protected Mire
2.75 km² overlap
Metsälain erityisen tärkeät elinympäristöt Pohjois-Pohjanmaa
IUCN Not Assigned
Forest habitats of special importance according to the Forest Act (OECM)
2.69 km² overlap
Iso Hirviaapa-Lähteenaapa
IUCN Not Reported
Special Protection Area (Birds Directive)
2.34 km² overlap

21 more protected areassorted by overlap area

Iso Hirviaapa-Lähteenaapa
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
2.34 km² overlap
Metsätalouden ympäristötukikohteet Pohjois-Pohjanmaa
IUCN Not Assigned
Forestry environmental aid contracts (OECM)
0.63 km² overlap
Kuusimaan luonnonsuojelualue
IUCN IV
Private Nature Reserve
0.31 km² overlap
HIASTINLAHDEN LUONNONSUOJELUALUE
IUCN IV
Private Nature Reserve
0.23 km² overlap
Hiastinlahti
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.22 km² overlap
Hiastinlahti
IUCN Not Reported
Special Protection Area (Birds Directive)
0.22 km² overlap
Vilho Kyröläisen suojelumetsä
IUCN IV
Private Nature Reserve
0.19 km² overlap
Soidinräme
IUCN IV
Private Nature Reserve
0.19 km² overlap
Pohjoislehto
IUCN IV
Private Nature Reserve
0.18 km² overlap
Helenala
IUCN IV
Private Nature Reserve
0.18 km² overlap
Riekki
IUCN IV
Private Nature Reserve
0.17 km² overlap
Ellinkulma
IUCN IV
Private Nature Reserve
0.17 km² overlap
Pirttijärvi, Suomi100
IUCN IV
Private Nature Reserve
0.16 km² overlap
Valpuri
IUCN IV
Private Nature Reserve
0.13 km² overlap
Kangaslamminkangas
IUCN IV
Private Nature Reserve
0.12 km² overlap
Salamisuon niitty
IUCN IV
Private Nature Reserve
0.10 km² overlap
Antun suojelumetsä (Ls2020)
IUCN IV
Private Nature Reserve
0.09 km² overlap
Seponkorpi
IUCN IV
Private Nature Reserve
0.08 km² overlap
Ranta-Veijolan luonnonsuojelualue
IUCN IV
Private Nature Reserve
0.07 km² overlap
Oijärven suojelualue
IUCN IV
Private Nature Reserve
0.07 km² overlap
Tyynen Kangaslamminkangas
IUCN IV
Private Nature Reserve
0.06 km² overlap

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

Species present

1 622 distinct species · 24 738 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 23 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Olhavanjoki : 14 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 67 interactions GloBI sur 6 types (connectance 22.3%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.223

Patrimoniales

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°

1,3°C

Annual rain

484mm

Moisture idx (CMI)

0,02

Runoff

341mm/an

PET

473mm

AET

356mm

Mean slope

2,6°

Water table

64cm

Forest

95%

Crops

Urban

Protected

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