Ontologia

Commune · FRA

Rohan

France

CfbTemperate, no dry season, warm summer(100 %)

Species observed

1 235

Observations

17 239

Area

23,6km²

Ecological tissue

Sample of 37 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 Rohan : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 4 types (connectance 11.9%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
79
Connectance
0.119
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

1 235 distinct species · 17 239 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

17 239 obs · 4 cellules
Obs. / cellule
≥ 10 783
10 783–10 782
5 209–10 782
5 209–5 208
< 5 209

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

11,1°C

Annual rain

874mm

Warmest m°

22,0°C

Coldest m°

2,4°C

Elevation: 109 m on average (min 75 m, max 141 m)

Bioclimatic detailsExpert
Annual mean temp.
11,1°C
Annual rain
874mm
Warmest month
22,0°C
Coldest month
2,4°C
Mean alt.
109m
Min
75m
Max
141m
Std. dev.
17m
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

39,5g/kg

Clay

21,0%

Sand

21,0%

Silt

58,0%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: paGLiMaggregated to Morbihan

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
59,2g/kg
Clay
20,1%
Sand
21,4%
Silt
58,4%
5–15 cm
pH H₂O
6,1
Org. C
32,2g/kg
Clay
21,1%
Sand
20,5%
Silt
58,4%
15–30 cm
pH H₂O
6,1
Org. C
27,0g/kg
Clay
21,8%
Sand
21,1%
Silt
57,0%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest14.1%
Crops56.8%
Built-up1.1%
Bare soil0.4%
Other (grassland, water…)27.6%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology2 basins · 0 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

6,0km

Basins crossed

2

Max stream order

3

Max drainage

475km²

Discharge in basins

0,5m³/s

Mean precip.

869mm/an

Mean T°

10,7°C

Moisture idx

0,20

Max snow

8%

Mean runoff

656mm/an

Mean elev. (basins)

165m

Watersheds crossing here

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

115,2%

Pesticides

45,7kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

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.