Site of Special Scientific Interest · gbr
River Usk (Lower Usk)/Afon Wysg (Wysg Isaf)
- Area
- 5 km²
- IUCN cat.
- IV
- Year
- 1996
Overview
- Designation
- Site of Special Scientific Interest
- IUCN category
- IV · Aire d'habitats / espèces
Gestion active pour maintenir habitats / espèces particuliers
- Established
- 1996
- Managing authority
- Not Reported
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
1 437 distinct species · 27 450 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 River Usk (Lower Usk)/Afon Wysg (Wysg Isaf) : 25 espèces reliées par 44 interactions GloBI sur 4 types (connectance 8.9%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology3 basins · 0 lakes · 13 rivers
Hydrology metrics for this exact territory
Stream length here
13,3km
Basins crossed
3
Max stream order
4
Max drainage
1 316km²
Discharge in basins
0,1m³/s
Mean precip.
1 161mm/an
Mean T°
8,8°C
Moisture idx
0,44
Max snow
11%
Mean runoff
863mm/an
Mean elev. (basins)
235m
Watersheds crossing here
Rivers / streams (13, ord ≥ 4)
- River Uskord 4len here8.60 km9%total96 km
- Town Pillord 4len here3.14 km72%total4 km
- Monmouthshire Canalord 2len here0.41 km6%total7 km
- Uskord 4len here0.33 km14%total2 km
- Berthin Brookord 3len here0.21 km2%total10 km
- Clawdd Brookord 1len here0.14 km2%total6 km
- Afon Gaffeniord 1len here0.12 km2%total5 km
- River Lwydord 2len here0.10 km1%total9 km
- Monk's Ditchord 1len here0.08 km1%total11 km
- Ffrwd Brookord 1len here0.07 km3%total2 km
- Ochram Brookord 1len here0.05 km1%total4 km
- Nant y Banwrord 1len here0.02 km2%total1 km
1 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 51.68383, -2.88626
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.