HydroBASINS lev08 watershed · #2080048820

Bassin de River Lavant

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 : West Sussex

10% lakePfafstetter: 23301104

Sub-basin area

136km²

Upstream area

136,1km²

Discharge

2,08m³/s

Mean elev.

78m

Administrative coverage

1 dept-equivalent regions (GADM L2)

West Sussex
England · United Kingdom
136.5 km²
100.0% of basin

23 intersecting protected areas

South Downs
IUCN V
National Park
85.82 km² overlap
Pagham Harbour
IUCN IV
Local Nature Reserve
4.52 km² overlap
Pagham Harbour
IUCN Not Reported
Emerald Network
4.30 km² overlap
Pagham Harbour
IUCN IV
Site of Special Scientific Interest
4.30 km² overlap
Pagham Harbour
IUCN Not Reported
Wetland of International Importance (Ramsar Site)
4.29 km² overlap
Pagham Harbour
IUCN IV
Nature Reserve
2.81 km² overlap
Pagham Harbour
IUCN Not Reported
Marine Protected Area (OSPAR)
2.35 km² overlap
Pagham Harbour
IUCN IV
Marine Conservation Zone
2.35 km² overlap
Pagham Harbour
IUCN Not Reported
Marine Protected Area (OSPAR)
2.23 km² overlap

14 more protected areassorted by overlap area

Solent and Dorset Coast
IUCN Not Reported
Emerald Network
2.05 km² overlap
Solent and Dorset Coast
IUCN Not Reported
Special Protection Area (Birds Directive)
2.05 km² overlap
Drovers Estate
IUCN V
Nature Reserve
0.78 km² overlap
Kingley Vale
IUCN Not Reported
Emerald Network
0.73 km² overlap
Kingley Vale
IUCN IV
Site of Special Scientific Interest
0.73 km² overlap
Kingley Vale
IUCN IV
National Nature Reserve
0.61 km² overlap
Levin Down
IUCN IV
Site of Special Scientific Interest
0.26 km² overlap
East Dean Park Wood
IUCN IV
Site of Special Scientific Interest
0.18 km² overlap
West Dean Woods
IUCN IV
Site of Special Scientific Interest
0.16 km² overlap
Harting Downs
IUCN IV
Site of Special Scientific Interest
0.16 km² overlap
Singleton and Cocking Tunnels
IUCN IV
Site of Special Scientific Interest
0.01 km² overlap
Singleton and Cocking Tunnels
IUCN Not Reported
Emerald Network
0.01 km² overlap
Slindon Estate
IUCN V
Nature Reserve
0.00 km² overlap
Harting Down and Beacon Hill
IUCN V
Nature Reserve
0.00 km² overlap

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

Species present

5 151 distinct species · 223 244 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 Lavant : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 89 interactions GloBI sur 5 types (connectance 14.1%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.141

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°

9,8°C

Annual rain

852mm

Moisture idx (CMI)

0,16

Runoff

437mm/an

PET

714mm

AET

547mm

Mean slope

3,3°

Water table

234cm

Forest

Crops

39%

Urban

Protected

66%

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