Grands Causses
IUCN VRegional Nature Park · 1995
3 807 km²
Commune · FRA
Trélans
France
CfbTemperate, no dry season, warm summer(79 %)
Species observed
416
Observations
1 635
Area
22,9km²
Ecological tissue
Sample of 25 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 Trélans : 21 espèces + 4 bulles famille, 55 interactions GloBI documentées sur 5 types (connectance 18.3%, filtre Serrano α=0.2). Les 4 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
25
Interactions affichées
55
Connectance
0.183
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
416 distinct species · 1 635 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
7,7°C
Annual rain
1 261mm
Warmest m°
20,9°C
Coldest m°
-3,0°C
Elevation: 1 114 m on average (min 877 m, max 1 407 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
7,7°C
Annual rain
1 261mm
Warmest month
20,9°C
Coldest month
-3,0°C
Mean alt.
1 114m
Min
877m
Max
1 407m
Std. dev.
160m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(79 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,5
Org. C
62,1g/kg
Clay
23,7%
Sand
39,3%
Silt
36,9%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Lozère
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,5
Org. C
93,8g/kg
Clay
22,3%
Sand
40,0%
Silt
37,7%
5–15 cm
pH H₂O
6,5
Org. C
57,9g/kg
Clay
22,1%
Sand
40,2%
Silt
37,7%
15–30 cm
pH H₂O
6,5
Org. C
34,7g/kg
Clay
26,8%
Sand
37,8%
Silt
35,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest22.4%
Crops38.5%
Built-up0.2%
Bare soil1.6%
Other (grassland, water…)37.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
3,0km
Basins crossed
2
Max stream order
1
Max drainage
2 118km²
Discharge in basins
0,7m³/s
Mean precip.
776mm/an
Mean T°
9,9°C
Moisture idx
-0,13
Max snow
18%
Mean runoff
502mm/an
Mean elev. (basins)
795m
Watersheds crossing here
Rivers / streams (1, 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
16,9%
Pesticides
24,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN V · 2IUCN Not Reported · 1
Aubrac
IUCN VRegional Nature Park · 2018
2 205 km²
Plateau de l'Aubrac
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2017
255 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.