HydroBASINS lev08 watershed · #2080049690
Bassin de Mounton Brook
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 2 administrative regions : Monmouthshire, Newport
Sub-basin area
209,5km²
Upstream area
209,5km²
Discharge
0,09m³/s
Mean elev.
61m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- Monmouthshire117.1 km²55.7% of basin
- Newport84.6 km²40.2% of basin
30 intersecting protected areas
Wye Valley
IUCN VArea of Outstanding Natural Beauty
19.08 km² overlap
Wye Valley (Wales)
IUCN VArea Of Outstanding Natural Beauty
19.08 km² overlap
Severn Estuary/ Môr Hafren
IUCN Not ReportedEmerald Network
9.74 km² overlap
Severn Estuary
IUCN IVSite of Special Scientific Interest
9.67 km² overlap
Severn Estuary
IUCN Not ReportedEmerald Network
9.67 km² overlap
Severn Estuary
IUCN IVWetland of International Importance (Ramsar Site)
9.57 km² overlap
Site of Special Scientific Interest
9.42 km² overlap
Gwent Levels - Whitson
IUCN IVSite of Special Scientific Interest
8.92 km² overlap
Severn Estuary / Môr Hafren
IUCN Not ReportedMarine Protected Area (OSPAR)
7.76 km² overlap
21 more protected areassorted by overlap area
Severn Estuary
IUCN Not ReportedMarine Protected Area (OSPAR)
7.68 km² overlap
Site of Special Scientific Interest
7.61 km² overlap
Newport Wetlands
IUCN IVNational Nature Reserve
6.45 km² overlap
Site of Special Scientific Interest
5.91 km² overlap
Site of Special Scientific Interest
3.74 km² overlap
Site of Special Scientific Interest
0.56 km² overlap
River Usk/ Afon Wysg
IUCN Not ReportedEmerald Network
0.55 km² overlap
Site of Special Scientific Interest
0.43 km² overlap
Penhow Woodlands
IUCN IVSite of Special Scientific Interest
0.43 km² overlap
Coombe Valley Woods
IUCN IVSite of Special Scientific Interest
0.30 km² overlap
Penhow Woodlands
IUCN IVNational Nature Reserve
0.24 km² overlap
Parc Seymour Woods
IUCN IVSite of Special Scientific Interest
0.23 km² overlap
Magor Marsh
IUCN IVSite of Special Scientific Interest
0.23 km² overlap
Dinham Meadows
IUCN IVSite of Special Scientific Interest
0.15 km² overlap
Site of Special Scientific Interest
0.14 km² overlap
Llwyn Y Celyn Wetland
IUCN IVSite of Special Scientific Interest
0.10 km² overlap
Langstone-Llanmartin Meadows
IUCN IVSite of Special Scientific Interest
0.09 km² overlap
Newport Wetlands
IUCN IVNature Reserve
0.06 km² overlap
Brockwells Meadows
IUCN IVSite of Special Scientific Interest
0.04 km² overlap
Bushy Close
IUCN IVSite of Special Scientific Interest
0.04 km² overlap
St. Julian'S Park
IUCN Not ReportedLocal Nature Reserve
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 064 distinct species · 309 397 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Mounton Brook : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 109 interactions GloBI sur 5 types (connectance 18.3%, filtre Serrano α=0.2). 9 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°
9,8°C
Annual rain
895mm
Moisture idx (CMI)
0,26
Runoff
649mm/an
PET
661mm
AET
538mm
Mean slope
2,9°
Water table
153cm
Forest
4%
Crops
20%
Urban
20%
Protected
32%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)