Marais Du Cotentin Et Du Bessin
IUCN VRegional Nature Park · 1991
1 475 km²
Commune · FRA
Octeville-l'Avenel
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
926
Observations
4 168
Area
7,4km²
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 Octeville-l'Avenel : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 60 interactions GloBI sur 5 types (connectance 17.1%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
27
Interactions affichées
60
Connectance
0.171
Patrimoniales
2
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
926 distinct species · 4 168 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
11,4°C
Annual rain
955mm
Warmest m°
19,2°C
Coldest m°
4,6°C
Elevation: 47 m on average (min 29 m, max 74 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
11,4°C
Annual rain
955mm
Warmest month
19,2°C
Coldest month
4,6°C
Mean alt.
47m
Min
29m
Max
74m
Std. dev.
10m
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
44,5g/kg
Clay
19,1%
Sand
24,3%
Silt
56,5%
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
68,0g/kg
Clay
18,6%
Sand
24,3%
Silt
57,0%
5–15 cm
pH H₂O
6,1
Org. C
39,6g/kg
Clay
17,9%
Sand
24,4%
Silt
57,6%
15–30 cm
pH H₂O
6,1
Org. C
25,9g/kg
Clay
20,8%
Sand
24,1%
Silt
55,0%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest16.5%
Crops47.0%
Built-up0.5%
Bare soil0.2%
Other (grassland, water…)35.8%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
2,5km
Basins crossed
1
Max stream order
1
Max drainage
1 320km²
Discharge in basins
0,1m³/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 (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Built-up
48,9%
Pesticides
32,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN V · 1🌊 Marine · 1
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.