HydroBASINS lev08 watershed · #2080347500
Bassin de Little Brosna
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 5 administrative regions : Birr, Borris-in-Ossory-Mountmellick, Loughrea, Nenagh, Thurles
Sub-basin area
556,8km²
Upstream area
556,9km²
Discharge
9,85m³/s
Mean elev.
111m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 388.7 km²69.5% of basin
- 125.5 km²22.5% of basin
- 41.2 km²7.4% of basin
- 3.6 km²0.6% of basin
- 0.0 km²0.0% of basin
21 intersecting protected areas
Slieve Bloom Mountains SPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
54.03 km² overlap
Natural Heritage Area
13.14 km² overlap
Slieve Bloom Mountains SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.41 km² overlap
River Little Brosna Callows SPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
11.00 km² overlap
Slieve Bloom Mountains
IUCN IVWetland of International Importance (Ramsar Site)
7.11 km² overlap
Ballyduff/Clonfinane Bog SAC
IUCN Not ReportedSite of Community Importance (Habitats Directive)
2.70 km² overlap
Arragh More Bog NHA
IUCN IVNatural Heritage Area
2.64 km² overlap
Sharavogue Bog SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.36 km² overlap
Killeen Bog NHA
IUCN IVNatural Heritage Area
2.17 km² overlap
12 more protected areassorted by overlap area
Redwood Bog SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.93 km² overlap
All Saints Bog SPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.68 km² overlap
All Saints Bog and Esker SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.55 km² overlap
Cangort Bog NHA
IUCN IVNatural Heritage Area
1.26 km² overlap
Dovegrove Callows SPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.25 km² overlap
River Shannon Callows SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.52 km² overlap
Middle Shannon Callows SPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.49 km² overlap
Natural Heritage Area
0.42 km² overlap
Lisduff Fen SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.31 km² overlap
Arragh More (Derrybreen) Bog SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.16 km² overlap
Island Fen SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.12 km² overlap
Ridge Road, SW of Rapemills SAC
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 472 distinct species · 18 932 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Little Brosna : 23 espèces reliées par 107 interactions GloBI sur 5 types (connectance 19.1%, filtre Serrano α=0.2). 11 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°
8,9°C
Annual rain
914mm
Moisture idx (CMI)
0,30
Runoff
573mm/an
PET
640mm
AET
542mm
Mean slope
2,2°
Water table
109cm
Forest
2%
Crops
12%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)