HydroBASINS lev08 watershed · #2080049480
Bassin de River Taw
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 2 administrative regions : NA, Somerset
Sub-basin area
1 071,1km²
Upstream area
1 071,3km²
Discharge
32,02m³/s
Mean elev.
172m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- NAEngland · United Kingdom1072.9 km²99.8% of basin
- SomersetEngland · United Kingdom2.0 km²0.2% of basin
20 intersecting protected areas
Exmoor
IUCN VNational Park
76.45 km² overlap
Dartmoor
IUCN VNational Park
28.64 km² overlap
Dartmoor
IUCN Not ReportedEmerald Network
16.66 km² overlap
North Dartmoor
IUCN IVSite of Special Scientific Interest
16.65 km² overlap
Exmoor Heaths
IUCN Not ReportedEmerald Network
12.25 km² overlap
South Exmoor
IUCN IVSite of Special Scientific Interest
10.34 km² overlap
North Exmoor
IUCN IVSite of Special Scientific Interest
6.45 km² overlap
Arlington Court
IUCN VNature Reserve
3.12 km² overlap
Culm Grasslands
IUCN Not ReportedEmerald Network
2.25 km² overlap
11 more protected areassorted by overlap area
Site of Special Scientific Interest
2.24 km² overlap
Arlington
IUCN IVSite of Special Scientific Interest
0.46 km² overlap
Taw-Torridge Estuary
IUCN IVSite of Special Scientific Interest
0.12 km² overlap
Gilmoor and Moorlands
IUCN IVSite of Special Scientific Interest
0.10 km² overlap
Nymet Barton Marsh
IUCN IVSite of Special Scientific Interest
0.10 km² overlap
Staddon Moor
IUCN IVSite of Special Scientific Interest
0.05 km² overlap
Popehouse Moor
IUCN IVSite of Special Scientific Interest
0.03 km² overlap
North Devon
IUCN VHeritage Coast
0.02 km² overlap
North Devon
IUCN VArea of Outstanding Natural Beauty
0.02 km² overlap
High Down Quarry
IUCN IVSite of Special Scientific Interest
0.02 km² overlap
Park Gate Quarry
IUCN IVSite of Special Scientific Interest
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 166 distinct species · 398 648 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Bassin de River Taw : 12 espèces reliées par 117 interactions GloBI sur 6 types (connectance 33.3%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
9,8°C
Annual rain
1 131mm
Moisture idx (CMI)
0,45
Runoff
946mm/an
PET
614mm
AET
542mm
Mean slope
4,4°
Water table
213cm
Forest
0%
Crops
23%
Urban
1%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)