Ontologia

HydroBASINS lev08 watershed · #2080053680

Bassin de River Colne

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, Suffolk

Coastal basin 8% lakePfafstetter: 23303770

Sub-basin area

877,3km²

Upstream area

877,3km²

Discharge

2,85m³/s

Mean elev.

32m

Administrative coverage

2 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

8 557 distinct species · 872 269 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

872 269 obs · 30 cellules
Obs. / cellule
≥ 127 195
98 931–127 194
30 099–98 930
16 882–30 098
< 16 882

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

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

Indicateurs du tissu écologique

Tissu écologique de Bassin de River Colne : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 57 interactions GloBI sur 2 types (connectance 14.0%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
57
Connectance
0.140
Patrimoniales
1
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

545mm

Moisture idx (CMI)

-0,18

Runoff

272mm/an

PET

667mm

AET

459mm

Mean slope

1,0°

Water table

69cm

Forest

0%

Crops

71%

Urban

17%

Protected

11%

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