HydroBASINS lev08 watershed · #2080365120
Bassin de Little Ouse
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 3 administrative regions : NA, Suffolk
Sub-basin area
1 082,6km²
Upstream area
1 082,8km²
Discharge
9,71m³/s
Mean elev.
35m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- SuffolkEngland · United Kingdom518.5 km²47.7% of basin
- NAEngland · United Kingdom462.4 km²42.5% of basin
- NAEngland · United Kingdom105.9 km²9.7% of basin
30 intersecting protected areas
Breckland
IUCN Not ReportedEmerald Network
192.89 km² overlap
Breckland Forest
IUCN IVSite of Special Scientific Interest
111.23 km² overlap
Breckland Farmland
IUCN IVSite of Special Scientific Interest
50.98 km² overlap
Breckland
IUCN Not ReportedEmerald Network
29.16 km² overlap
Stanford Training Area
IUCN IVSite of Special Scientific Interest
6.71 km² overlap
Lakenheath Warren
IUCN IVSite of Special Scientific Interest
5.88 km² overlap
Bridgham & Brettenham Heaths
IUCN IVSite of Special Scientific Interest
4.40 km² overlap
Lakenheath Fen
IUCN IVNature Reserve
3.76 km² overlap
Thetford Heaths
IUCN IVSite of Special Scientific Interest
2.71 km² overlap
21 more protected areassorted by overlap area
Brettenham Heath
IUCN IVNational Nature Reserve
2.32 km² overlap
Site of Special Scientific Interest
2.01 km² overlap
Waveney and Little Ouse Valley Fens
IUCN Not ReportedEmerald Network
1.94 km² overlap
Weeting Heath
IUCN IVSite of Special Scientific Interest
1.42 km² overlap
East Wretham Heath
IUCN IVSite of Special Scientific Interest
1.41 km² overlap
Weeting Heath
IUCN IVNational Nature Reserve
1.37 km² overlap
Redgrave and South Lopham Fens
IUCN Not ReportedWetland of International Importance (Ramsar Site)
1.27 km² overlap
Redgrave & Lopham Fen
IUCN IVNational Nature Reserve
1.27 km² overlap
Redgrave and Lopham Fens
IUCN IVSite of Special Scientific Interest
1.27 km² overlap
Thetford Golf Course & Marsh
IUCN IVSite of Special Scientific Interest
1.22 km² overlap
Site of Special Scientific Interest
1.18 km² overlap
RAF Lakenheath
IUCN IVSite of Special Scientific Interest
1.11 km² overlap
Thetford Heath
IUCN IVNational Nature Reserve
0.98 km² overlap
Knettishall Heath
IUCN IVSite of Special Scientific Interest
0.92 km² overlap
Foxhole Heath, Eriswell
IUCN IVSite of Special Scientific Interest
0.85 km² overlap
Cranberry Rough Hockham
IUCN IVSite of Special Scientific Interest
0.81 km² overlap
Barnham Heath
IUCN IVSite of Special Scientific Interest
0.79 km² overlap
Berner's Heath, Icklingham
IUCN IVSite of Special Scientific Interest
0.76 km² overlap
Barnham Cross Common
IUCN IVLocal Nature Reserve
0.69 km² overlap
Barnhamcross Common
IUCN IVSite of Special Scientific Interest
0.69 km² overlap
Wangford Warren and Carr
IUCN IVSite of Special Scientific Interest
0.68 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
12 146 distinct species · 1 432 272 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 Little Ouse : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 103 interactions GloBI sur 5 types (connectance 19.5%, filtre Serrano α=0.2). 12 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°
9,5°C
Annual rain
585mm
Moisture idx (CMI)
-0,11
Runoff
288mm/an
PET
657mm
AET
482mm
Mean slope
0,9°
Water table
63cm
Forest
1%
Crops
72%
Urban
3%
Protected
19%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)