HydroBASINS lev08 watershed · #2080048810
Bassin de Aldingbourne Rife
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 : West Sussex
Sub-basin area
108,5km²
Upstream area
108,6km²
Discharge
1,58m³/s
Mean elev.
31m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- West SussexEngland · United Kingdom105.6 km²97.0% of basin
20 intersecting protected areas
South Downs
IUCN VNational Park
29.88 km² overlap
Slindon Estate
IUCN VNature Reserve
3.37 km² overlap
Solent and Dorset Coast
IUCN Not ReportedEmerald Network
2.84 km² overlap
Solent and Dorset Coast
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.82 km² overlap
Pagham Harbour
IUCN IVSite of Special Scientific Interest
0.58 km² overlap
Pagham Harbour
IUCN Not ReportedEmerald Network
0.58 km² overlap
Pagham Harbour
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.58 km² overlap
Pagham Harbour
IUCN IVLocal Nature Reserve
0.43 km² overlap
Bognor Reef
IUCN IVSite of Special Scientific Interest
0.40 km² overlap
11 more protected areassorted by overlap area
Pagham Harbour
IUCN Not ReportedMarine Protected Area (OSPAR)
0.31 km² overlap
The Brooks
IUCN IVLocal Nature Reserve
0.19 km² overlap
Climping Beach
IUCN IVSite of Special Scientific Interest
0.11 km² overlap
Eartham Pit, Boxgrove
IUCN IVSite of Special Scientific Interest
0.10 km² overlap
Halnaker Chalk Pit
IUCN IVSite of Special Scientific Interest
0.06 km² overlap
Felpham
IUCN IVSite of Special Scientific Interest
0.01 km² overlap
Duncton to Bignor Escarpment
IUCN IVSite of Special Scientific Interest
0.00 km² overlap
East Dean Park Wood
IUCN IVSite of Special Scientific Interest
0.00 km² overlap
Pagham Harbour
IUCN IVMarine Conservation Zone
0.00 km² overlap
Pagham Harbour
IUCN IVNature Reserve
0.00 km² overlap
Pagham Harbour
IUCN Not ReportedMarine Protected Area (OSPAR)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 314 distinct species · 42 083 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Aldingbourne Rife : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 55 interactions GloBI sur 4 types (connectance 9.2%, filtre Serrano α=0.2). 5 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°
10,0°C
Annual rain
804mm
Moisture idx (CMI)
0,10
Runoff
441mm/an
PET
722mm
AET
543mm
Mean slope
1,3°
Water table
53cm
Forest
0%
Crops
39%
Urban
34%
Protected
29%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)