Site of Special Scientific Interest · gbr
Afon Tywi
- Area
- 13 km²
- IUCN cat.
- IV
- Year
- 1998
Overview
- Designation
- Site of Special Scientific Interest
- IUCN category
- IV · Aire d'habitats / espèces
Gestion active pour maintenir habitats / espèces particuliers
- Established
- 1998
- Managing authority
- Not Reported
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
1 000 distinct species · 4 538 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Tywi : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 89 interactions GloBI sur 5 types (connectance 12.0%, filtre Serrano α=0.2). 8 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 · 8 rivers
Hydrology metrics for this exact territory
Stream length here
11,4km
Basins crossed
3
Max stream order
4
Max drainage
1 320km²
Discharge in basins
0,3m³/s
Mean precip.
1 212mm/an
Mean T°
9,4°C
Moisture idx
0,51
Max snow
13%
Mean runoff
1 104mm/an
Mean elev. (basins)
170m
Watersheds crossing here
Rivers / streams (8, ord ≥ 4)
- River Towyord 4len here10.12 km12%total88 km
- River Cothiord 4len here0.40 km1%total54 km
- Afon Branord 4len here0.37 km2%total25 km
- River Dulasord 2len here0.16 km2%total10 km
- Afon Gwynonord 4len here0.15 km4%total4 km
- Tawelan Brookord 2len here0.10 km1%total7 km
- Nant Stephanauord 2len here0.06 km4%total1 km
- Nant Geidrychord 1len here≈ tangenttotal1 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
- 51.86734, -4.20770
- 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.