HydroBASINS lev08 watershed · #2080358050

Bassin de River Wensum

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 2 administrative regions : NA

Pfafstetter: 23303729

Sub-basin area

236,1km²

Upstream area

236,1km²

Discharge

2,28m³/s

Mean elev.

57m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de River Wensum303 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

NA
England · United Kingdom
203.0 km²
85.6% of basin
NA
England · United Kingdom
34.1 km²
14.4% of basin

8 intersecting protected areas

River Wensum
IUCN IV
Site of Special Scientific Interest
2.52 km² overlap
River Wensum
IUCN Not Reported
Emerald Network
2.13 km² overlap
Syderstone Common
IUCN IV
Site of Special Scientific Interest
0.44 km² overlap
Swanton Novers
IUCN IV
National Nature Reserve
0.07 km² overlap
Swanton Novers Woods
IUCN IV
Site of Special Scientific Interest
0.07 km² overlap
Horningtoft Wood
IUCN IV
Site of Special Scientific Interest
0.03 km² overlap
Foxley Wood
IUCN IV
National Nature Reserve
0.00 km² overlap
Foxley Wood
IUCN IV
Site of Special Scientific Interest
0.00 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

5 788 distinct species · 281 574 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 36 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de River Wensum : 28 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 83 interactions GloBI sur 5 types (connectance 12.5%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.125

Patrimoniales

Plus dense que (national)0 %(top 100%)

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

631mm

Moisture idx (CMI)

0,00

Runoff

325mm/an

PET

634mm

AET

483mm

Mean slope

1,1°

Water table

87cm

Forest

Crops

95%

Urban

Protected

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)