HydroBASINS lev08 watershed · #2080049490
Bassin de Doniford Stream
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
748km²
Upstream area
748km²
Discharge
11,23m³/s
Mean elev.
173m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- SomersetEngland · United Kingdom402.7 km²53.6% of basin
- NAEngland · United Kingdom314.5 km²41.9% of basin
30 intersecting protected areas
Exmoor
IUCN VNational Park
351.77 km² overlap
North Devon
IUCN VHeritage Coast
90.57 km² overlap
North Exmoor
IUCN IVSite of Special Scientific Interest
84.55 km² overlap
North Devon
IUCN VArea of Outstanding Natural Beauty
75.24 km² overlap
Exmoor
IUCN VHeritage Coast
72.36 km² overlap
Exmoor Heaths
IUCN Not ReportedEmerald Network
70.59 km² overlap
Quantock Hills
IUCN VArea of Outstanding Natural Beauty
43.19 km² overlap
Holnicote
IUCN VNature Reserve
33.38 km² overlap
The Quantocks
IUCN IVSite of Special Scientific Interest
20.59 km² overlap
21 more protected areassorted by overlap area
Exmoor Coastal Heaths
IUCN IVSite of Special Scientific Interest
17.31 km² overlap
Bideford to Foreland Point
IUCN Not ReportedMarine Protected Area (OSPAR)
15.49 km² overlap
Dunkery & Horner Wood
IUCN IVNational Nature Reserve
15.38 km² overlap
Bideford to Foreland Point
IUCN IVMarine Conservation Zone
15.35 km² overlap
Exmoor and Quantock Oakwoods
IUCN Not ReportedEmerald Network
13.71 km² overlap
Braunton Burrows
IUCN Not ReportedEmerald Network
10.84 km² overlap
Braunton Burrows
IUCN IVSite of Special Scientific Interest
10.83 km² overlap
North Devon Biosphere
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
10.53 km² overlap
Severn Estuary
IUCN IVWetland of International Importance (Ramsar Site)
9.91 km² overlap
Bridgwater Bay
IUCN IVSite of Special Scientific Interest
9.86 km² overlap
Severn Estuary
IUCN Not ReportedEmerald Network
9.85 km² overlap
Somerset Wetlands
IUCN IVNational Nature Reserve
9.61 km² overlap
Severn Estuary/ Môr Hafren
IUCN Not ReportedEmerald Network
7.93 km² overlap
West Exmoor Coast
IUCN VNature Reserve
7.23 km² overlap
West Exmoor Coast and Woods
IUCN IVSite of Special Scientific Interest
6.99 km² overlap
Watersmeet
IUCN VNature Reserve
5.46 km² overlap
Severn Estuary / Môr Hafren
IUCN Not ReportedMarine Protected Area (OSPAR)
5.44 km² overlap
Site of Special Scientific Interest
5.38 km² overlap
Severn Estuary
IUCN Not ReportedMarine Protected Area (OSPAR)
5.26 km² overlap
Dunster Park and Heathlands
IUCN IVSite of Special Scientific Interest
4.29 km² overlap
Watersmeet
IUCN IVSite of Special Scientific Interest
3.46 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
10 330 distinct species · 463 193 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Doniford Stream : 20 espèces reliées par 125 interactions GloBI sur 5 types (connectance 23.7%, filtre Serrano α=0.2). 13 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°
9,7°C
Annual rain
1 131mm
Moisture idx (CMI)
0,44
Runoff
859mm/an
PET
619mm
AET
545mm
Mean slope
6,4°
Water table
250cm
Forest
18%
Crops
22%
Urban
4%
Protected
68%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)