Normandie-Maine
IUCN VRegional Nature Park · 1975
2 571 km²
Commune · FRA
Roullée
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
1 798
Observations
29 667
Area
20,2km²
Ecological tissue
Sample of 31 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 Roullée : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 56 interactions GloBI sur 6 types (connectance 12.0%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
31
Interactions affichées
56
Connectance
0.120
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
1 798 distinct species · 29 667 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,8°C
Annual rain
755mm
Warmest m°
22,5°C
Coldest m°
1,3°C
Elevation: 150 m on average (min 140 m, max 220 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,8°C
Annual rain
755mm
Warmest month
22,5°C
Coldest month
1,3°C
Mean alt.
150m
Min
140m
Max
220m
Std. dev.
11m
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
35,2g/kg
Clay
24,8%
Sand
24,5%
Silt
50,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Sarthe
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,2
Org. C
58,6g/kg
Clay
23,3%
Sand
24,9%
Silt
51,7%
5–15 cm
pH H₂O
6,3
Org. C
29,6g/kg
Clay
25,2%
Sand
23,9%
Silt
50,9%
15–30 cm
pH H₂O
6,3
Org. C
17,3g/kg
Clay
26,0%
Sand
24,9%
Silt
49,1%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest18.4%
Crops44.8%
Built-up0.4%
Bare soil0.3%
Other (grassland, water…)36.1%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 5 rivers
Hydrology metrics for this exact territory
Stream length here
6,7km
Basins crossed
1
Max stream order
3
Max drainage
2 151km²
Discharge in basins
0,2m³/s
Mean precip.
733mm/an
Mean T°
10,1°C
Moisture idx
-0,10
Max snow
6%
Mean runoff
333mm/an
Mean elev. (basins)
175m
Watersheds crossing here
Rivers / streams (5, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,0nW
Built-up
37,2%
Pesticides
45,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN Not Reported · 2IUCN V · 1
Bocage à Osmoderma eremita au nord de la forêt de Perseigne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2023
62 km²
Haute Vallée de la Sarthe
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2014
35 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.