Vallée de la Rance - Côte d\'Emeraude
IUCN VRegional Nature Park · 2024
893 km²
Commune · FRA
Saint-Jouan-des-Guérets
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
2 131
Observations
25 570
Area
9,2km²
Ecological tissue
Sample of 35 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 Saint-Jouan-des-Guérets : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 60 interactions GloBI sur 4 types (connectance 10.1%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
35
Interactions affichées
60
Connectance
0.101
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
2 131 distinct species · 25 570 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
11,7°C
Annual rain
758mm
Warmest m°
20,4°C
Coldest m°
4,2°C
Elevation: 32 m on average (min 8 m, max 43 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
11,7°C
Annual rain
758mm
Warmest month
20,4°C
Coldest month
4,2°C
Mean alt.
32m
Min
8m
Max
43m
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
6,2
Org. C
43,9g/kg
Clay
22,3%
Sand
24,7%
Silt
53,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiMaggregated to Ille-et-Vilaine
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,1
Org. C
71,0g/kg
Clay
20,3%
Sand
25,9%
Silt
53,8%
5–15 cm
pH H₂O
6,2
Org. C
35,3g/kg
Clay
23,1%
Sand
24,6%
Silt
52,3%
15–30 cm
pH H₂O
6,2
Org. C
25,5g/kg
Clay
23,5%
Sand
23,5%
Silt
52,9%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest13.4%
Crops37.8%
Built-up3.6%
Bare soil1.8%
Other (grassland, water…)43.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 1 lakes · 0 rivers
Hydrology metrics for this exact territory
Lake surface here
0,51km²
Basins crossed
1
Max drainage
627km²
Discharge in basins
0,0m³/s
Mean precip.
734mm/an
Mean T°
11,3°C
Moisture idx
-0,01
Max snow
8%
Mean runoff
527mm/an
Mean elev. (basins)
35m
Watersheds crossing here
Lakes (1, top by area)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
2hab/km²
Night light
1,3nW
Built-up
362,7%
Pesticides
45,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN V · 1IUCN Not Reported · 1🌊 Marine · 2
Estuaire de la Rance
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2014
28 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.