HydroBASINS lev08 watershed · #2080055100
Bassin de Owenduff
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 : Westport - Belmullet
Sub-basin area
619,2km²
Upstream area
619,2km²
Discharge
12,71m³/s
Mean elev.
98m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 535.9 km²86.2% of basin
19 intersecting protected areas
Owenduff/Nephin Complex SPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
193.58 km² overlap
Owenduff/Nephin Complex SAC
IUCN Not ReportedSite of Community Importance (Habitats Directive)
192.29 km² overlap
Wild Nephin National Park
IUCN IINational Park
66.09 km² overlap
Corraun Plateau SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
38.95 km² overlap
Croaghaun/Slievemore SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
34.82 km² overlap
Clew Bay Complex SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
27.46 km² overlap
Keel Machair/Menaun Cliffs SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
16.63 km² overlap
Owenduff catchment
IUCN IIWetland of International Importance (Ramsar Site)
13.13 km² overlap
Achill Head SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
9.15 km² overlap
10 more protected areassorted by overlap area
Doogort East Bog NHA
IUCN IVNatural Heritage Area
8.33 km² overlap
Tullaghan Bay & Bog NHA
IUCN IVNatural Heritage Area
7.87 km² overlap
Blacksod Bay/Broad Haven SPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.31 km² overlap
Blacksod Bay and Broadhaven
IUCN Not ReportedWetland of International Importance (Ramsar Site)
4.21 km² overlap
Lough Gall Bog SAC
IUCN Not ReportedSite of Community Importance (Habitats Directive)
3.63 km² overlap
Sraheens Bog NHA
IUCN IVNatural Heritage Area
1.88 km² overlap
Doogort Machair/Lough Doo SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.88 km² overlap
Doogort Machair SPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.16 km² overlap
Bills Rocks SPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.29 km² overlap
Bellacragher Saltmarsh SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.17 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 033 distinct species · 21 804 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 Owenduff : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 72 interactions GloBI sur 6 types (connectance 14.5%, filtre Serrano α=0.2). 14 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°
9,1°C
Annual rain
1 258mm
Moisture idx (CMI)
0,56
Runoff
1 303mm/an
PET
554mm
AET
522mm
Mean slope
6,4°
Water table
255cm
Forest
19%
Crops
1%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)