Ontologia

HydroBASINS lev08 watershed · #2080049950

Bassin de River Towy

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 3 administrative regions : Carmarthenshire, Ceredigion, Powys

Pfafstetter: 23301740

Sub-basin area

1 319,6km²

Upstream area

1 319,6km²

Discharge

55,97m³/s

Mean elev.

220m

Administrative coverage

3 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

7 809 distinct species · 417 671 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

417 671 obs · 40 cellules
Obs. / cellule
≥ 84 883
22 195–84 882
11 577–22 194
6 083–11 576
< 6 083

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

Ecological tissue

Sample of 27 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 Towy : 19 espèces reliées par 65 interactions GloBI sur 5 types (connectance 17.2%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
65
Connectance
0.172
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°

9,0°C

Annual rain

1 317mm

Moisture idx (CMI)

0,55

Runoff

1 150mm/an

PET

579mm

AET

539mm

Mean slope

7,0°

Water table

289cm

Forest

7%

Crops

8%

Urban

1%

Protected

17%

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