Ontologia

HydroBASINS lev08 watershed · #2080383290

Bassin de River Monnow

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 : Herefordshire, County of, Monmouthshire, Powys

Pfafstetter: 23301602

Sub-basin area

571,8km²

Upstream area

571,8km²

Discharge

12,59m³/s

Mean elev.

185m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de River Wye125 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

28 intersecting protected areas

19 more protected areas

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

Species present

7 317 distinct species · 285 761 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

285 761 obs · 17 cellules
Obs. / cellule
≥ 94 635
34 567–94 634
16 815–34 566
7 294–16 814
< 7 294

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

Ecological tissue

Sample of 26 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 Monnow : 16 espèces reliées par 84 interactions GloBI sur 5 types (connectance 23.9%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
84
Connectance
0.239
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°

9,1°C

Annual rain

950mm

Moisture idx (CMI)

0,32

Runoff

692mm/an

PET

637mm

AET

532mm

Mean slope

6,0°

Water table

286cm

Forest

0%

Crops

24%

Urban

1%

Protected

17%

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