Ontologia

HydroBASINS lev08 watershed · #2080053790

Bassin de River Roding

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 5 administrative regions : Kent, NA, Surrey, Thurrock

Pfafstetter: 23303810

Sub-basin area

1 138,5km²

Upstream area

13 323,4km²

Discharge

116,96m³/s

Mean elev.

64m

Administrative coverage

Hydrographic chain

▼ Drains into

Outlet (drains to ocean / endorheic)

▲ Receives from 2 basins

5 dept-equivalent regions (GADM L2)

30 intersecting protected areas

21 more protected areas

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

Species present

12 175 distinct species · 1 342 057 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 342 057 obs · 33 cellules
Obs. / cellule
≥ 278 009
73 834–278 008
41 579–73 833
25 478–41 578
< 25 478

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 42 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

Indicateurs du tissu écologique

Tissu écologique de Bassin de River Roding : 39 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 100 interactions GloBI sur 4 types (connectance 11.6%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
100
Connectance
0.116
Patrimoniales
3
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°

10,1°C

Annual rain

625mm

Moisture idx (CMI)

-0,12

Runoff

319mm/an

PET

713mm

AET

510mm

Mean slope

1,8°

Water table

128cm

Forest

0%

Crops

10%

Urban

46%

Protected

15%

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