HydroBASINS lev08 watershed · #2080049780

Bassin de River Taff

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 8 administrative regions : Caerphilly, Cardiff, NA, Powys, Rhondda Cynon Taf

4% lakePfafstetter: 23301732

Sub-basin area

523,3km²

Upstream area

523,3km²

Discharge

17,19m³/s

Mean elev.

288m

Administrative coverage

8 dept-equivalent regions (GADM L2)

Rhondda Cynon Taf
Wales · United Kingdom
270.5 km²
51.5% of basin
NA
Wales · United Kingdom
132.5 km²
25.2% of basin
Powys
Wales · United Kingdom
55.1 km²
10.5% of basin
Cardiff
Wales · United Kingdom
42.7 km²
8.1% of basin
Caerphilly
Wales · United Kingdom
21.5 km²
4.1% of basin
NA
Wales · United Kingdom
1.9 km²
0.4% of basin
NA
Wales · United Kingdom
0.6 km²
0.1% of basin
NA
Wales · United Kingdom
0.4 km²
0.1% of basin

30 intersecting protected areas

Bannau Brycheiniog
IUCN V
National Park
122.21 km² overlap
Brecon Beacons
IUCN IV
Site of Special Scientific Interest
19.90 km² overlap
Brecon Beacons
IUCN V
Nature Reserve
18.29 km² overlap
Mynydd Ty-Isaf, Rhondda
IUCN IV
Site of Special Scientific Interest
3.18 km² overlap
Cwm Glo A Glyndyrys
IUCN IV
Site of Special Scientific Interest
1.81 km² overlap
Cardiff Beech Woods
IUCN Not Reported
Emerald Network
1.16 km² overlap
Fforestganol A Chwm Nofydd
IUCN IV
Site of Special Scientific Interest
1.12 km² overlap
Cwm Cadlan
IUCN Not Reported
Emerald Network
0.84 km² overlap
Cwm Cadlan
IUCN IV
Site of Special Scientific Interest
0.84 km² overlap

21 more protected areassorted by overlap area

Tarell Valley
IUCN V
Nature Reserve
0.67 km² overlap
Cwm Taf Fechan Woodlands
IUCN IV
Site of Special Scientific Interest
0.64 km² overlap
Garth Wood
IUCN IV
Site of Special Scientific Interest
0.64 km² overlap
Cwm Nofydd And Fforest Ganol
IUCN Not Reported
Local Nature Reserve
0.53 km² overlap
Tir Mawr A Dderi Hir, Llwydcoed
IUCN IV
Site of Special Scientific Interest
0.50 km² overlap
Cwarrau Ton Mawr A Ffynnon Taf - Ton Mawr And Taffs Well Quarries
IUCN IV
Site of Special Scientific Interest
0.43 km² overlap
Cwm Taf Fechan Woodlands
IUCN Not Reported
Local Nature Reserve
0.41 km² overlap
Blaen Cynon
IUCN Not Reported
Emerald Network
0.39 km² overlap
Glyncornel Grounds And Woodlands
IUCN Not Reported
Local Nature Reserve
0.36 km² overlap
Glamorganshire Canal
IUCN Not Reported
Local Nature Reserve
0.35 km² overlap
Cwm Cadlan
IUCN IV
National Nature Reserve
0.33 km² overlap
Brecon Beacons/ Bannau Brycheiniog
IUCN Not Reported
Emerald Network
0.32 km² overlap
Nelson Bog
IUCN IV
Site of Special Scientific Interest
0.27 km² overlap
Cors Bryn - Y - Gaer
IUCN IV
Site of Special Scientific Interest
0.26 km² overlap
Cwar Yr Ystrad A Cwar Blaen Dyffryn
IUCN IV
Site of Special Scientific Interest
0.25 km² overlap
Bryncarnau Grasslands, Llwydcoed
IUCN IV
Site of Special Scientific Interest
0.25 km² overlap
Craig-Yr-Hesg
IUCN Not Reported
Local Nature Reserve
0.19 km² overlap
Craig Pont Rhondda
IUCN IV
Site of Special Scientific Interest
0.19 km² overlap
Castell Coch Woodlands And Road Section
IUCN IV
Site of Special Scientific Interest
0.17 km² overlap
Coed Y Bedw
IUCN IV
Site of Special Scientific Interest
0.16 km² overlap
Blaenrhondda Road Cutting
IUCN IV
Site of Special Scientific Interest
0.16 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

10 477 distinct species · 628 163 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de River Taff : 26 espèces reliées par 128 interactions GloBI sur 6 types (connectance 15.6%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

128

Connectance

0.156

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

8,7°C

Annual rain

1 277mm

Moisture idx (CMI)

0,51

Runoff

957mm/an

PET

612mm

AET

556mm

Mean slope

7,8°

Water table

353cm

Forest

Crops

Urban

35%

Protected

25%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)