HydroBASINS lev08 watershed · #2080053890
Bassin de Cuckmere River
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
555,7km²
Upstream area
555,7km²
Discharge
1,88m³/s
Mean elev.
45m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- NAEngland · United Kingdom546.1 km²97.9% of basin
30 intersecting protected areas
High Weald
IUCN VArea of Outstanding Natural Beauty
140.98 km² overlap
South Downs
IUCN VNational Park
98.13 km² overlap
Pevensey Levels
IUCN IVSite of Special Scientific Interest
36.03 km² overlap
Pevensey Levels
IUCN Not ReportedWetland of International Importance (Ramsar Site)
35.86 km² overlap
Pevensey Levels
IUCN Not ReportedEmerald Network
35.86 km² overlap
Sussex
IUCN VHeritage Coast
24.52 km² overlap
Dungeness, Romney Marsh and Rye Bay
IUCN Not ReportedEmerald Network
13.41 km² overlap
Seaford to Beachy Head
IUCN IVSite of Special Scientific Interest
10.96 km² overlap
Dungeness, Romney Marsh and Rye Bay
IUCN Not ReportedMarine Protected Area (OSPAR)
8.26 km² overlap
21 more protected areassorted by overlap area
Site of Special Scientific Interest
7.47 km² overlap
Beachy Head East
IUCN IVMarine Conservation Zone
6.83 km² overlap
Hastings Country Park
IUCN IVLocal Nature Reserve
3.31 km² overlap
Beachy Head West
IUCN IVMarine Conservation Zone
3.27 km² overlap
Beachy Head West
IUCN Not ReportedMarine Protected Area (OSPAR)
3.16 km² overlap
Site of Special Scientific Interest
3.12 km² overlap
Wilmington Downs
IUCN IVSite of Special Scientific Interest
2.10 km² overlap
Dungeness
IUCN Not ReportedEmerald Network
1.99 km² overlap
Hastings Cliffs
IUCN Not ReportedEmerald Network
1.84 km² overlap
Pevensey Levels
IUCN IVNational Nature Reserve
1.84 km² overlap
Combe Haven
IUCN IVSite of Special Scientific Interest
1.53 km² overlap
Seaford Head
IUCN IVLocal Nature Reserve
1.50 km² overlap
Nature Reserve
1.22 km² overlap
Ashburnham Park
IUCN IVSite of Special Scientific Interest
1.10 km² overlap
Arlington Reservoir
IUCN IVLocal Nature Reserve
1.01 km² overlap
Arlington Reservoir
IUCN IVSite of Special Scientific Interest
1.00 km² overlap
Rye Harbour
IUCN IVLocal Nature Reserve
0.95 km² overlap
Lullington Heath
IUCN IVSite of Special Scientific Interest
0.73 km² overlap
Willingdon Down
IUCN IVSite of Special Scientific Interest
0.68 km² overlap
Lullington Heath
IUCN IVNational Nature Reserve
0.63 km² overlap
Fore Wood
IUCN IVNature Reserve
0.56 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
9 675 distinct species · 719 135 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Cuckmere River : 19 espèces reliées par 86 interactions GloBI sur 5 types (connectance 24.5%, filtre Serrano α=0.2). 8 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°
10,1°C
Annual rain
727mm
Moisture idx (CMI)
0,02
Runoff
436mm/an
PET
715mm
AET
521mm
Mean slope
2,8°
Water table
134cm
Forest
0%
Crops
24%
Urban
23%
Protected
52%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)