Afon Tywi
IUCN IVSite of Special Scientific Interest · 1998
13 km²
Subdivision · GBR
Llanegwad
United Kingdom
CfbTemperate, no dry season, warm summer(100 %)
Species observed
2 972
Observations
35 511
Area
148,7km²
Ecological tissue
Sample of 29 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).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Llanegwad : 24 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 53 interactions GloBI sur 5 types (connectance 12.2%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
30
Interactions affichées
53
Connectance
0.122
Patrimoniales
2
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
2 972 distinct species · 35 511 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
9,5°C
Annual rain
1 722mm
Warmest m°
18,4°C
Coldest m°
1,6°C
Elevation: 184 m on average (min 29 m, max 361 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
9,5°C
Annual rain
1 722mm
Warmest month
18,4°C
Coldest month
1,6°C
Mean alt.
184m
Min
29m
Max
361m
Std. dev.
83m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,6
Org. C
68,1g/kg
Clay
23,1%
Sand
32,2%
Silt
44,7%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiMaggregated to Carmarthenshire
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,6
Org. C
85,9g/kg
Clay
23,2%
Sand
32,1%
Silt
44,8%
5–15 cm
pH H₂O
5,6
Org. C
77,4g/kg
Clay
23,1%
Sand
32,1%
Silt
44,8%
15–30 cm
pH H₂O
5,6
Org. C
41,0g/kg
Clay
22,9%
Sand
32,4%
Silt
44,6%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest18.2%
Crops30.8%
Built-up0.2%
Bare soil0.3%
Other (grassland, water…)50.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 9 rivers
Hydrology metrics for this exact territory
Stream length here
52,9km
Basins crossed
2
Max stream order
4
Max drainage
1 320km²
Discharge in basins
6,3m³/s
Mean precip.
1 317mm/an
Mean T°
9,0°C
Moisture idx
0,55
Max snow
13%
Mean runoff
1 150mm/an
Mean elev. (basins)
220m
Watersheds crossing here
Rivers / streams (9, ord ≥ 4)
- River Cothiord 4len here31.06 km58%total54 km
- River Sannanord 2len here6.97 km100%total7 km
- River Dulasord 2len here5.16 km52%total10 km
- Afon Clydachord 2len here4.66 km41%total11 km
- Afon Pibord 1len here3.67 km88%total4 km
- River Towyord 4len here0.72 km1%total88 km
- Nant Aerauord 1len here0.35 km7%total5 km
- Nant Ffraineord 3len here0.30 km4%total7 km
- Afon Gwynonord 4len here0.05 km1%total4 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,1nW
Built-up
20,7%
Pesticides
28,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN IV · 1IUCN Not Reported · 1🌊 Marine · 1
Afon Tywi/ River Tywi
IUCN Not ReportedEmerald Network
4 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN