HydroBASINS lev08 watershed · #2080402590
Bassin de River Wylye
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 1 administrative regions : NA
Sub-basin area
444,5km²
Upstream area
444,5km²
Discharge
7,77m³/s
Mean elev.
142m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- NAEngland · United Kingdom446.1 km²100.0% of basin
28 intersecting protected areas
Area of Outstanding Natural Beauty
179.71 km² overlap
Salisbury Plain
IUCN Not ReportedEmerald Network
107.50 km² overlap
Salisbury Plain
IUCN Not ReportedEmerald Network
105.62 km² overlap
Salisbury Plain
IUCN IVSite of Special Scientific Interest
105.61 km² overlap
Parsonage Down
IUCN IVNational Nature Reserve
2.76 km² overlap
Parsonage Down
IUCN IVSite of Special Scientific Interest
1.88 km² overlap
Brimsdown Hill
IUCN IVSite of Special Scientific Interest
1.78 km² overlap
River Avon
IUCN Not ReportedEmerald Network
0.85 km² overlap
Wylye and Church Dean Downs
IUCN IVSite of Special Scientific Interest
0.81 km² overlap
19 more protected areassorted by overlap area
Stockton Wood and Down
IUCN IVSite of Special Scientific Interest
0.56 km² overlap
River Avon System
IUCN IVSite of Special Scientific Interest
0.54 km² overlap
Scratchbury & Cotley Hills
IUCN IVSite of Special Scientific Interest
0.53 km² overlap
Stourhead
IUCN VNature Reserve
0.53 km² overlap
Ebsbury Down
IUCN IVSite of Special Scientific Interest
0.53 km² overlap
Whitesheet Hill
IUCN IVSite of Special Scientific Interest
0.53 km² overlap
Long Knoll
IUCN IVSite of Special Scientific Interest
0.35 km² overlap
River Till
IUCN IVSite of Special Scientific Interest
0.34 km² overlap
Wylye Down
IUCN IVNational Nature Reserve
0.34 km² overlap
Steeple Langford Down
IUCN IVSite of Special Scientific Interest
0.24 km² overlap
Starveall and Stony Down
IUCN IVSite of Special Scientific Interest
0.22 km² overlap
Yarnbury Castle
IUCN IVSite of Special Scientific Interest
0.09 km² overlap
Smallbrook Meadows
IUCN IVLocal Nature Reserve
0.06 km² overlap
Tytherington Down
IUCN IVSite of Special Scientific Interest
0.06 km² overlap
River Wylye
IUCN IVLocal Nature Reserve
0.04 km² overlap
Stonehenge Landscape
IUCN VNature Reserve
0.04 km² overlap
Cley Hill
IUCN IVSite of Special Scientific Interest
0.00 km² overlap
Cley Hill
IUCN VNature Reserve
0.00 km² overlap
Bratton Downs
IUCN IVSite of Special Scientific Interest
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 372 distinct species · 366 416 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 Wylye : 11 espèces reliées par 135 interactions GloBI sur 5 types (connectance 31.0%, filtre Serrano α=0.2). 19 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°
9,2°C
Annual rain
785mm
Moisture idx (CMI)
0,13
Runoff
530mm/an
PET
679mm
AET
525mm
Mean slope
3,3°
Water table
180cm
Forest
0%
Crops
49%
Urban
2%
Protected
65%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)