HydroBASINS lev08 watershed · #2080347390
Bassin de Shannon
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 4 administrative regions : Ballinasloe, Birr, Loughrea, Nenagh
Sub-basin area
149km²
Upstream area
8 117km²
Discharge
144,73m³/s
Mean elev.
53m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Brosna1266 km²
- Bassin de Blackwater104 km²
4 dept-equivalent regions (GADM L2)
- 106.4 km²71.1% of basin
- 26.3 km²17.6% of basin
- 16.9 km²11.3% of basin
- 0.0 km²0.0% of basin
7 intersecting protected areas
River Shannon Callows SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.92 km² overlap
Middle Shannon Callows SPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
10.89 km² overlap
All Saints Bog and Esker SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.11 km² overlap
Kilnaborris Bog NHA
IUCN IVNatural Heritage Area
1.68 km² overlap
All Saints Bog SPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.55 km² overlap
Natural Heritage Area
0.04 km² overlap
Ridge Road, SW of Rapemills SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 076 distinct species · 7 547 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Shannon : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 103 interactions GloBI sur 5 types (connectance 23.7%, 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°
9,2°C
Annual rain
899mm
Moisture idx (CMI)
0,28
Runoff
539mm/an
PET
643mm
AET
542mm
Mean slope
0,7°
Water table
59cm
Forest
2%
Crops
12%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)