HydroBASINS lev08 watershed · #7080015270
Bassin de Hoko River
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 : Clallam
Sub-basin area
1 521,6km²
Upstream area
1 521,6km²
Discharge
4,21m³/s
Mean elev.
223m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 1480.5 km²97.0% of basin
27 intersecting protected areas
Olympic National Park
IUCN VMarine Protected Area
226.06 km² overlap
Olympic
IUCN IINational Park
200.95 km² overlap
Olympic
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
185.39 km² overlap
Olympic National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
185.38 km² overlap
Daniel J. Evans
IUCN IbWilderness Area
146.98 km² overlap
Marine Protected Area
16.41 km² overlap
Pysht Estuary
IUCN Not AssignedEstuary
3.17 km² overlap
Shipwreck Point
IUCN VNatural Resources Conservation Area
1.98 km² overlap
Environmental System
1.14 km² overlap
18 more protected areassorted by overlap area
Lake
0.97 km² overlap
Marine Protected Area
0.70 km² overlap
Crescent Tree Farm
IUCN Not AssignedConservation Easement
0.48 km² overlap
Washington Islands
IUCN IbWilderness Area
0.37 km² overlap
Flattery Rocks
IUCN IVNational Wildlife Refuge
0.30 km² overlap
Hamerquist/Hollywood
IUCN Not AssignedConservation Easement
0.27 km² overlap
Wanner
IUCN Not AssignedConservation Easement
0.15 km² overlap
Hart 2010
IUCN VEnvironmental System
0.10 km² overlap
Lyre River Tree Farm (Lydiard)
IUCN Not AssignedConservation Easement
0.10 km² overlap
Pangea (Paul)
IUCN Not AssignedConservation Easement
0.09 km² overlap
Greubel
IUCN Not AssignedConservation Easement
0.09 km² overlap
Quillayute Needles
IUCN IVNational Wildlife Refuge
0.08 km² overlap
Duncan
IUCN Not AssignedConservation Easement
0.08 km² overlap
Twin (Morse)
IUCN Not AssignedConservation Easement
0.07 km² overlap
Conservation Area
0.04 km² overlap
Forestry Riparian Easement Program 287
IUCN Not AssignedEasement
0.02 km² overlap
Salt Creek
IUCN Not AssignedGardens
0.02 km² overlap
Forestry Riparian Easement Program 284
IUCN Not AssignedEasement
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 897 distinct species · 504 685 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Hoko River : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 72 interactions GloBI sur 4 types (connectance 15.5%, filtre Serrano α=0.2). 10 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°
8,8°C
Annual rain
2 325mm
Moisture idx (CMI)
0,68
Runoff
2 030mm/an
PET
724mm
AET
618mm
Mean slope
10,9°
Water table
408cm
Forest
98%
Crops
0%
Urban
0%
Protected
23%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)