Severn Estuary/ Môr Hafren
IUCN Not ReportedEmerald Network
738 km²
Subdivision · GBR
Marshfield
United Kingdom
CfbTemperate, no dry season, warm summer(100 %)
Species observed
3 859
Observations
133 130
Area
35,4km²
Ecological tissue
Sample of 38 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 Marshfield : 28 espèces reliées par 86 interactions GloBI sur 5 types (connectance 11.6%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
39
Interactions affichées
86
Connectance
0.116
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
3 859 distinct species · 133 130 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,6°C
Annual rain
1 138mm
Warmest m°
20,0°C
Coldest m°
2,5°C
Elevation: 20 m on average (min -34 m, max 96 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,6°C
Annual rain
1 138mm
Warmest month
20,0°C
Coldest month
2,5°C
Mean alt.
20m
Min
-34m
Max
96m
Std. dev.
29m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Hydrology1 basins · 0 lakes · 6 rivers
Hydrology metrics for this exact territory
Stream length here
7,4km
Basins crossed
1
Max stream order
2
Max drainage
501km²
Discharge in basins
0,0m³/s
Mean precip.
1 141mm/an
Mean T°
9,0°C
Moisture idx
0,44
Max snow
9%
Mean runoff
848mm/an
Mean elev. (basins)
223m
Watersheds crossing here
Rivers / streams (6, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Protected areas8
IUCN Not Reported · 4IUCN IV · 4🌊 Marine · 8
Severn Estuary / Môr Hafren
IUCN Not ReportedMarine Protected Area (OSPAR) · 2008
722 km²
Severn Estuary
IUCN Not ReportedEmerald Network
245 km²
Severn Estuary
IUCN IVWetland of International Importance (Ramsar Site) · 1976
241 km²
Severn Estuary
IUCN Not ReportedMarine Protected Area (OSPAR) · 2011
223 km²
Severn Estuary
IUCN IVSite of Special Scientific Interest · 1976
69 km²
Complete list8 protected areas
- Severn Estuary/ Môr HafrenEmerald NetworkIUCN Not Reported738 km²
- Severn Estuary / Môr HafrenMarine Protected Area (OSPAR)IUCN Not Reported2008722 km²
- Severn EstuaryEmerald NetworkIUCN Not Reported245 km²
- Severn EstuaryWetland of International Importance (Ramsar Site)IUCN IV1976241 km²
- Severn EstuaryMarine Protected Area (OSPAR)IUCN Not Reported2011223 km²
- Severn EstuarySite of Special Scientific InterestIUCN IV197669 km²
- Gwent Levels - St. BridesSite of Special Scientific InterestIUCN IV199113 km²
- Gwent Levels - Rumney And PeterstoneSite of Special Scientific InterestIUCN IV199310 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN