La Sienne Et Ses Affluents
IUCN IVBiotope Protection Order · 2017
18 km²
Commune · FRA
Cérences
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
983
Observations
7 365
Area
26,6km²
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 Cérences : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 94 interactions GloBI sur 5 types (connectance 14.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
36
Interactions affichées
94
Connectance
0.149
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
983 distinct species · 7 365 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
11,5°C
Annual rain
942mm
Warmest m°
19,7°C
Coldest m°
4,3°C
Elevation: 54 m on average (min 29 m, max 95 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
11,5°C
Annual rain
942mm
Warmest month
19,7°C
Coldest month
4,3°C
Mean alt.
54m
Min
29m
Max
95m
Std. dev.
14m
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
34,6g/kg
Clay
23,7%
Sand
19,8%
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
6,1
Org. C
54,0g/kg
Clay
22,0%
Sand
20,3%
Silt
57,7%
5–15 cm
pH H₂O
6,2
Org. C
31,0g/kg
Clay
24,3%
Sand
18,9%
Silt
56,9%
15–30 cm
pH H₂O
6,2
Org. C
18,8g/kg
Clay
25,0%
Sand
20,1%
Silt
54,9%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest13.5%
Crops47.7%
Built-up1.2%
Bare soil0.3%
Other (grassland, water…)37.3%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
11,7km
Basins crossed
2
Max stream order
3
Max drainage
764km²
Discharge in basins
0,7m³/s
Mean precip.
798mm/an
Mean T°
10,9°C
Moisture idx
0,10
Max snow
6%
Mean runoff
743mm/an
Mean elev. (basins)
114m
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
121,4%
Pesticides
43,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN IV · 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.