HydroBASINS lev08 watershed · #2080196520
Bassin de Ilvesjoki
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 : Pirkanmaa, Satakunta, Southern Ostrobothnia
Sub-basin area
460,8km²
Upstream area
460,8km²
Discharge
4,04m³/s
Mean elev.
144m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 288.6 km²62.3% of basin
- 157.8 km²34.0% of basin
- 17.2 km²3.7% of basin
15 intersecting protected areas
Iso Koihnanneva
IUCN Not ReportedSpecial Protection Area (Birds Directive)
11.87 km² overlap
Iso Koihnanneva
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
11.87 km² overlap
Mustasaarenneva
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.24 km² overlap
Protected Mire
5.19 km² overlap
Jäkäläneva - Isoneva
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.45 km² overlap
Protected Mire
3.32 km² overlap
Metsälain erityisen tärkeät elinympäristöt Etelä-Pohjanmaa
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
0.35 km² overlap
Salojennevan erämaa
IUCN IVPrivate Nature Reserve
0.31 km² overlap
Raatosulkonneva
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.27 km² overlap
6 more protected areassorted by overlap area
Mäntyharju
IUCN IVPrivate Nature Reserve
0.23 km² overlap
Metsätalouden ympäristötukikohteet Etelä-Pohjanmaa
IUCN Not AssignedForestry environmental aid contracts (OECM)
0.14 km² overlap
Metsälain erityisen tärkeät elinympäristöt Satakunta
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
0.11 km² overlap
Metsälain erityisen tärkeät elinympäristöt Pirkanmaa
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
0.01 km² overlap
Iso Koihnanneva 1
IUCN IVPrivate Nature Reserve
0.01 km² overlap
Metsätalouden ympäristötukikohteet Satakunta
IUCN Not AssignedForestry environmental aid contracts (OECM)
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 367 distinct species · 11 943 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Ilvesjoki : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 126 interactions GloBI sur 5 types (connectance 13.3%, filtre Serrano α=0.2). 21 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
2,8°C
Annual rain
596mm
Moisture idx (CMI)
0,08
Runoff
277mm/an
PET
548mm
AET
413mm
Mean slope
3,0°
Water table
136cm
Forest
81%
Crops
19%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)