Ontologia

HydroBASINS lev08 watershed · #2080049710

Bassin de River Usk

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 7 administrative regions : Caerphilly, Carmarthenshire, Monmouthshire, NA, Newport +1

3% lakePfafstetter: 23301720

Sub-basin area

1 315,8km²

Upstream area

1 315,8km²

Discharge

40,97m³/s

Mean elev.

258m

Administrative coverage

7 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

10 789 distinct species · 766 580 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

766 580 obs · 40 cellules
Obs. / cellule
≥ 75 431
53 264–75 430
22 389–53 263
12 100–22 388
< 12 100

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

Ecological tissue

Sample of 28 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 Usk : 13 espèces reliées par 119 interactions GloBI sur 6 types (connectance 25.6%, filtre Serrano α=0.2). 18 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
119
Connectance
0.256
Patrimoniales
0
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°

8,7°C

Annual rain

1 196mm

Moisture idx (CMI)

0,46

Runoff

891mm/an

PET

617mm

AET

547mm

Mean slope

7,2°

Water table

311cm

Forest

2%

Crops

12%

Urban

8%

Protected

49%

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