Site of Special Scientific Interest · gbr
Afon Wysg (Isafonydd) / River Usk (Tributaries)
- Area
- 2 km²
- IUCN cat.
- IV
- Year
- 2003
Overview
- Designation
- Site of Special Scientific Interest
- IUCN category
- IV · Aire d'habitats / espèces
Gestion active pour maintenir habitats / espèces particuliers
- Established
- 2003
- Managing authority
- Not Reported
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
3 062 distinct species · 34 901 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Afon Wysg (Isafonydd) / River Usk (Tributaries) : 24 espèces reliées par 146 interactions GloBI sur 5 types (connectance 17.8%, filtre Serrano α=0.2). 17 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology1 basins · 0 lakes · 26 rivers
Hydrology metrics for this exact territory
Stream length here
7,4km
Basins crossed
1
Max stream order
3
Max drainage
1 316km²
Discharge in basins
0,1m³/s
Mean precip.
1 196mm/an
Mean T°
8,7°C
Moisture idx
0,46
Max snow
11%
Mean runoff
891mm/an
Mean elev. (basins)
258m
Watersheds crossing here
Rivers / streams (26, ord ≥ 4)
- River Uskord 4len here0.81 km1%total96 km
- Nant y Groesord 2len here0.71 km6%total12 km
- Ysgir Fechanord 1len here0.69 km7%total10 km
- Nant y Gweryddord 1len here0.59 km3%total18 km
- Cwm Llythinord 2len here0.39 km6%total7 km
- Nant y Ceithanord 1len here0.39 km7%total6 km
- Afon Tarellord 1len here0.38 km5%total7 km
- Afon Craiord 2len here0.36 km3%total10 km
- Afon Ysgirord 2len here0.35 km7%total5 km
- Cwm Brynychord 1len here0.34 km4%total9 km
- Grwyne Fechanord 1len here0.33 km6%total6 km
- Afon Senniord 2len here0.27 km9%total3 km
14 more river segmentssorted by Strahler order + length
- River Tarellord 3len here0.25 km5%total5 km
- Nant Brânord 3len here0.25 km3%total10 km
- Grwyne Fawrord 3len here0.21 km4%total6 km
- Ysgir Fawrord 1len here0.20 km2%total12 km
- Nant Eithrimord 1len here0.18 km6%total3 km
- Nant Menasginord 1len here0.13 km3%total5 km
- Cwm Nant-dduord 1len here0.11 km2%total5 km
- Cwm Banword 2len here0.11 km3%total4 km
- Afon Cynrigord 2len here0.10 km3%total4 km
- Cwm-Rhos Brookord 2len here0.08 km1%total7 km
- Caerfanellord 3len here0.06 km0%total15 km
- Hondduord 1len here0.05 km1%total4 km
- Nant Carord 3len here0.02 km2%total1 km
- Rhiangollord 3len here0.02 km0%total8 km
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
- 51.99678, -3.45555
- 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.