Vallée de la Rance - Côte d\'Emeraude
IUCN VRegional Nature Park · 2024
893 km²
Commune · FRA
Évran
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
1 266
Observations
6 316
Area
24,1km²
Ecological tissue
Sample of 41 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 Évran : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 104 interactions GloBI sur 6 types (connectance 12.7%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
41
Interactions affichées
104
Connectance
0.127
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
1 266 distinct species · 6 316 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
11,6°C
Annual rain
728mm
Warmest m°
22,3°C
Coldest m°
2,7°C
Elevation: 33 m on average (min 15 m, max 64 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
11,6°C
Annual rain
728mm
Warmest month
22,3°C
Coldest month
2,7°C
Mean alt.
33m
Min
15m
Max
64m
Std. dev.
13m
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
6,1
Org. C
33,8g/kg
Clay
21,8%
Sand
22,1%
Silt
56,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: paGLiMaggregated to Côtes-d'Armor
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,1
Org. C
53,2g/kg
Clay
21,3%
Sand
22,2%
Silt
56,6%
5–15 cm
pH H₂O
6,2
Org. C
26,4g/kg
Clay
21,5%
Sand
21,8%
Silt
56,7%
15–30 cm
pH H₂O
6,2
Org. C
21,9g/kg
Clay
22,6%
Sand
22,2%
Silt
55,1%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest14.3%
Crops59.0%
Built-up1.1%
Bare soil0.7%
Other (grassland, water…)24.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 1 lakes · 4 rivers
Hydrology metrics for this exact territory
Stream length here
7,0km
Lake surface here
0,01km²
Basins crossed
1
Max stream order
4
Max drainage
1 026km²
Discharge in basins
0,4m³/s
Mean precip.
749mm/an
Mean T°
11,0°C
Moisture idx
0,01
Max snow
7%
Mean runoff
519mm/an
Mean elev. (basins)
82m
Watersheds crossing here
Lakes (1, top by area)
Rivers / streams (4, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,1nW
Built-up
113,6%
Pesticides
45,8kg/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.