HydroBASINS lev08 watershed · #2080334170
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 3 administrative regions : Boyle, Carrick-on-Shannon, Longford
Sub-basin area
26,6km²
Upstream area
2 278,1km²
Discharge
55,66m³/s
Mean elev.
54m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Black River280 km²
- Bassin de Eslin126 km²
3 dept-equivalent regions (GADM L2)
- 24.4 km²91.2% of basin
- 1.8 km²6.6% of basin
- 0.6 km²2.1% of basin
4 intersecting protected areas
Ballykenny-Fisherstown Bog SPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.02 km² overlap
Lough Forbes Complex SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.85 km² overlap
Rinn River NHA
IUCN IVNatural Heritage Area
1.12 km² overlap
Cloonageeher Bog NHA
IUCN IVNatural Heritage Area
1.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
198 distinct species · 356 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 : 35 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 86 interactions GloBI sur 7 types (connectance 9.5%, filtre Serrano α=0.2). 8 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°
9,0°C
Annual rain
1 043mm
Moisture idx (CMI)
0,41
Runoff
617mm/an
PET
617mm
AET
544mm
Mean slope
1,0°
Water table
50cm
Forest
3%
Crops
9%
Urban
0%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)