Vallée de la Rance - Côte d\'Emeraude
IUCN VRegional Nature Park · 2024
893 km²
Commune · FRA
Saint-Briac-sur-Mer
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
2 410
Observations
19 850
Area
8,8km²
Ecological tissue
Sample of 47 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-Briac-sur-Mer : 41 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 93 interactions GloBI sur 5 types (connectance 8.6%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
47
Interactions affichées
93
Connectance
0.086
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
2 410 distinct species · 19 850 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
11,8°C
Annual rain
748mm
Warmest m°
20,1°C
Coldest m°
4,5°C
Elevation: 24 m on average (min -9 m, max 51 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
11,8°C
Annual rain
748mm
Warmest month
20,1°C
Coldest month
4,5°C
Mean alt.
24m
Min
-9m
Max
51m
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)
Land cover
Forest24.6%
Crops20.2%
Built-up4.2%
Bare soil1.0%
Other (grassland, water…)50.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
1,7km
Basins crossed
1
Max stream order
1
Max drainage
202km²
Discharge in basins
0,1m³/s
Mean precip.
737mm/an
Mean T°
11,2°C
Moisture idx
0,04
Max snow
8%
Mean runoff
504mm/an
Mean elev. (basins)
45m
Watersheds crossing here
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,1nW
Built-up
423,7%
Pesticides
45,7kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas6
IUCN IV · 3IUCN Not Reported · 2IUCN V · 1🌊 Marine · 3
Baie de Lancieux, Baie de l'Arguenon, Archipel de Saint Malo et Dinard
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2014
51 km²
Golf De Dinard
IUCN IVBiotope Protection Order · 1998
0 km²
Rives du fremur
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy) · 2003
0 km²
La Vallée de la Rance
IUCN Not ReportedGeotope Protection Order · 2021
0 km²
Anciennes Fortifications De La Garde Guérin
IUCN IVBiotope Protection Order · 1997
0 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.