HydroBASINS lev08 watershed · #2080049920
Bassin de River Loughor
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 : Carmarthenshire, NA
Sub-basin area
351,7km²
Upstream area
351,7km²
Discharge
12,62m³/s
Mean elev.
145m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- Carmarthenshire213.8 km²60.6% of basin
- NA123.6 km²35.0% of basin
- NA13.8 km²3.9% of basin
30 intersecting protected areas
Bannau Brycheiniog
IUCN VNational Park
48.07 km² overlap
Mynydd Du (Black Mountain)
IUCN IVSite of Special Scientific Interest
11.22 km² overlap
Carmarthen Bay and Estuaries/ Bae Caerfyrddin ac Aberoedd
IUCN Not ReportedEmerald Network
6.80 km² overlap
Site of Special Scientific Interest
6.80 km² overlap
Graig Fawr, Pontardulais
IUCN IVSite of Special Scientific Interest
3.39 km² overlap
Cernydd Carmel
IUCN Not ReportedEmerald Network
2.85 km² overlap
Cernydd Carmel
IUCN IVSite of Special Scientific Interest
2.85 km² overlap
Carmarthen Bay and Estuaries / Bae Caerfyrddin ac Aberoedd
IUCN Not ReportedMarine Protected Area (OSPAR)
2.47 km² overlap
Burry Inlet
IUCN Not ReportedEmerald Network
1.72 km² overlap
21 more protected areassorted by overlap area
Burry Inlet
IUCN Not ReportedWetland of International Importance (Ramsar Site)
1.72 km² overlap
Carmel
IUCN IVNational Nature Reserve
0.85 km² overlap
Nant Y Crimp
IUCN IVSite of Special Scientific Interest
0.66 km² overlap
Burry Inlet
IUCN Not ReportedMarine Protected Area (OSPAR)
0.31 km² overlap
Penplas Grasslands
IUCN IVSite of Special Scientific Interest
0.30 km² overlap
Caeau Mynydd Mawr
IUCN Not ReportedEmerald Network
0.25 km² overlap
Carreg Cennan
IUCN IVSite of Special Scientific Interest
0.20 km² overlap
Site of Special Scientific Interest
0.18 km² overlap
Caeau Afon Gwili
IUCN IVSite of Special Scientific Interest
0.18 km² overlap
Nature Reserve
0.17 km² overlap
Carreg Cennen Woodlands
IUCN Not ReportedLocal Nature Reserve
0.16 km² overlap
Caeau Ffos Fach
IUCN IVSite of Special Scientific Interest
0.12 km² overlap
Gweunydd Glan-Y-Glasnant
IUCN IVSite of Special Scientific Interest
0.12 km² overlap
Caeau Nant Garenig
IUCN IVSite of Special Scientific Interest
0.12 km² overlap
Cadle Heath
IUCN Not ReportedLocal Nature Reserve
0.12 km² overlap
Felin Fach Meadows, Cwmgwili
IUCN IVSite of Special Scientific Interest
0.11 km² overlap
Caeau Blaenau-Mawr
IUCN IVSite of Special Scientific Interest
0.10 km² overlap
Caeau Pant-Y-Bryn
IUCN IVSite of Special Scientific Interest
0.09 km² overlap
Caeau Lotwen
IUCN IVSite of Special Scientific Interest
0.09 km² overlap
Llyn Llech Owain
IUCN IVSite of Special Scientific Interest
0.07 km² overlap
Coed Llandyfan
IUCN IVSite of Special Scientific Interest
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 159 distinct species · 193 280 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 River Loughor : 22 espèces reliées par 100 interactions GloBI sur 6 types (connectance 15.0%, filtre Serrano α=0.2). 15 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°
9,7°C
Annual rain
1 243mm
Moisture idx (CMI)
0,52
Runoff
1 086mm/an
PET
597mm
AET
545mm
Mean slope
4,7°
Water table
208cm
Forest
1%
Crops
12%
Urban
24%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)