HydroBASINS lev08 watershed · #2080050680
Bassin de River Derwent
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 : Cumbria
Sub-basin area
682,7km²
Upstream area
682,8km²
Discharge
21,72m³/s
Mean elev.
261m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- CumbriaEngland · United Kingdom685.7 km²100.0% of basin
30 intersecting protected areas
Lake District
IUCN VNational Park
534.68 km² overlap
Lake District High Fells
IUCN Not ReportedEmerald Network
130.52 km² overlap
Borrowdale
IUCN VNature Reserve
77.03 km² overlap
Buttermere Fells
IUCN IVSite of Special Scientific Interest
61.48 km² overlap
Skiddaw Group
IUCN IVSite of Special Scientific Interest
41.55 km² overlap
Buttermere Valley
IUCN VNature Reserve
26.33 km² overlap
Armboth Fells
IUCN IVSite of Special Scientific Interest
23.48 km² overlap
River Derwent and Bassenthwaite Lake
IUCN Not ReportedEmerald Network
17.95 km² overlap
Site of Special Scientific Interest
12.10 km² overlap
21 more protected areassorted by overlap area
Ullswater
IUCN VNature Reserve
6.88 km² overlap
Bassenthwaite Lake
IUCN IVSite of Special Scientific Interest
6.77 km² overlap
Borrowdale Woodland Complex
IUCN Not ReportedEmerald Network
6.70 km² overlap
Bassenthwaite Lake
IUCN IVNational Nature Reserve
5.51 km² overlap
Lodore - Troutdale Woods
IUCN IVSite of Special Scientific Interest
3.69 km² overlap
Honister Crag
IUCN IVSite of Special Scientific Interest
3.03 km² overlap
Rosthwaite Fell
IUCN IVSite of Special Scientific Interest
2.31 km² overlap
Site of Special Scientific Interest
1.37 km² overlap
Eycott Hill
IUCN IVSite of Special Scientific Interest
1.25 km² overlap
Stonethwaite Woods
IUCN IVSite of Special Scientific Interest
0.99 km² overlap
Scafell Pikes
IUCN IVSite of Special Scientific Interest
0.99 km² overlap
Site of Special Scientific Interest
0.98 km² overlap
Buttermere
IUCN IVSite of Special Scientific Interest
0.93 km² overlap
Mungrisdale Mires
IUCN IVSite of Special Scientific Interest
0.61 km² overlap
Scales Wood
IUCN IVSite of Special Scientific Interest
0.54 km² overlap
Force Crag Mine
IUCN IVSite of Special Scientific Interest
0.53 km² overlap
Great Wood
IUCN IVSite of Special Scientific Interest
0.49 km² overlap
Site of Special Scientific Interest
0.47 km² overlap
Thirlmere Woods
IUCN IVSite of Special Scientific Interest
0.46 km² overlap
Dunthwaite
IUCN VNature Reserve
0.39 km² overlap
Johnny Wood
IUCN IVSite of Special Scientific Interest
0.36 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 065 distinct species · 128 658 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Derwent : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 75 interactions GloBI sur 6 types (connectance 10.7%, filtre Serrano α=0.2). 10 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°
7,4°C
Annual rain
1 155mm
Moisture idx (CMI)
0,48
Runoff
938mm/an
PET
583mm
AET
524mm
Mean slope
10,1°
Water table
317cm
Forest
5%
Crops
11%
Urban
2%
Protected
78%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)