HydroBASINS lev08 watershed · #2080403080

Bassin de River Bourne

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: 23301204

Sub-basin area

163,8km²

Upstream area

163,8km²

Discharge

2,58m³/s

Mean elev.

130m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de River Avon461 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

NA
England · United Kingdom
131.8 km²
80.2% of basin
NA
England · United Kingdom
32.5 km²
19.8% of basin

15 intersecting protected areas

North Wessex Downs
IUCN V
Area of Outstanding Natural Beauty
41.30 km² overlap
Salisbury Plain
IUCN Not Reported
Emerald Network
14.26 km² overlap
Porton Down
IUCN Not Reported
Emerald Network
8.29 km² overlap
Porton Down
IUCN IV
Site of Special Scientific Interest
8.28 km² overlap
Salisbury Plain
IUCN Not Reported
Emerald Network
5.98 km² overlap
Salisbury Plain
IUCN IV
Site of Special Scientific Interest
5.96 km² overlap
Winterbourne Downs
IUCN IV
Nature Reserve
3.07 km² overlap
Porton Meadows
IUCN IV
Site of Special Scientific Interest
0.17 km² overlap
Cockey Down
IUCN IV
Site of Special Scientific Interest
0.16 km² overlap

6 more protected areassorted by overlap area

River Avon
IUCN Not Reported
Emerald Network
0.11 km² overlap
Figsbury Ring
IUCN IV
Site of Special Scientific Interest
0.11 km² overlap
Figsbury Ring
IUCN V
Nature Reserve
0.11 km² overlap
River Avon System
IUCN IV
Site of Special Scientific Interest
0.08 km² overlap
Bracknell Croft
IUCN IV
Site of Special Scientific Interest
0.06 km² overlap
Quarley Hill Fort
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

2 586 distinct species · 91 686 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 29 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 Bourne : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 156 interactions GloBI sur 5 types (connectance 26.2%, filtre Serrano α=0.2). 18 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

156

Connectance

0.262

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

743mm

Moisture idx (CMI)

0,07

Runoff

477mm/an

PET

694mm

AET

521mm

Mean slope

2,5°

Water table

143cm

Forest

Crops

60%

Urban

Protected

36%

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