Marais Du Cotentin Et Du Bessin
IUCN VRegional Nature Park · 1991
1 475 km²
Commune · FRA
Portbail
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
1 367
Observations
9 489
Area
25,6km²
Ecological tissue
Sample of 34 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 Portbail : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 103 interactions GloBI sur 4 types (connectance 18.4%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
34
Interactions affichées
103
Connectance
0.184
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 367 distinct species · 9 489 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
11,7°C
Annual rain
912mm
Warmest m°
19,4°C
Coldest m°
4,8°C
Elevation: 25 m on average (min 1 m, max 60 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
11,7°C
Annual rain
912mm
Warmest month
19,4°C
Coldest month
4,8°C
Mean alt.
25m
Min
1m
Max
60m
Std. dev.
17m
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)
Soil & lithology
pH H₂O
6,0
Org. C
45,1g/kg
Clay
20,8%
Sand
24,3%
Silt
54,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Manche
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,0
Org. C
68,6g/kg
Clay
20,2%
Sand
24,7%
Silt
55,1%
5–15 cm
pH H₂O
6,0
Org. C
40,6g/kg
Clay
21,3%
Sand
23,9%
Silt
54,8%
15–30 cm
pH H₂O
6,0
Org. C
26,2g/kg
Clay
20,9%
Sand
24,4%
Silt
54,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest8.3%
Crops47.5%
Built-up1.6%
Bare soil1.1%
Other (grassland, water…)41.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
4,7km
Basins crossed
2
Max stream order
2
Max drainage
1 450km²
Discharge in basins
0,2m³/s
Mean precip.
875mm/an
Mean T°
11,3°C
Moisture idx
0,24
Max snow
8%
Mean runoff
650mm/an
Mean elev. (basins)
56m
Watersheds crossing here
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,4nW
Built-up
158,9%
Pesticides
62,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN V · 1IUCN Not Reported · 1🌊 Marine · 2
Littoral ouest du Cotentin de Saint-Germain-sur-Ay au Rozel
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2014
23 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
France-specific data (Phase 2)
ZNIEFF, Natura 2000, INPN protected spaces, BNV-D pesticides, Naïades water quality, SAFRAN fine climate, BRGM lithology — Layer FR to load in Phase 2.