Ontologia

HydroBASINS lev08 watershed · #2080050390

Bassin de River Weaver

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 8 administrative regions : Halton, NA

3% lakePfafstetter: 23301780

Sub-basin area

1 422,4km²

Upstream area

1 422,5km²

Discharge

26,62m³/s

Mean elev.

93m

Administrative coverage

8 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

12 263 distinct species · 1 816 486 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 816 486 obs · 44 cellules
Obs. / cellule
≥ 248 459
101 356–248 458
47 595–101 355
29 874–47 594
< 29 874

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

Ecological tissue

Sample of 35 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 Weaver : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 5 types (connectance 11.9%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
71
Connectance
0.119
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°

9,2°C

Annual rain

834mm

Moisture idx (CMI)

0,24

Runoff

619mm/an

PET

630mm

AET

524mm

Mean slope

1,6°

Water table

84cm

Forest

0%

Crops

22%

Urban

15%

Protected

6%

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