Causses Du Quercy
IUCN VRegional Nature Park · 1999
1 832 km²
Commune · FRA
Calvignac
France
CfbTemperate, no dry season, warm summer(79 %)
Species observed
917
Observations
3 490
Area
17,4km²
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 Calvignac : 30 espèces + 5 bulles famille, 79 interactions GloBI documentées sur 5 types (connectance 13.3%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
35
Interactions affichées
79
Connectance
0.133
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
917 distinct species · 3 490 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,8°C
Annual rain
872mm
Warmest m°
26,0°C
Coldest m°
1,9°C
Elevation: 252 m on average (min 174 m, max 306 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,8°C
Annual rain
872mm
Warmest month
26,0°C
Coldest month
1,9°C
Mean alt.
252m
Min
174m
Max
306m
Std. dev.
40m
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
6,6
Org. C
40,5g/kg
Clay
34,6%
Sand
24,7%
Silt
40,7%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Lot
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,5
Org. C
70,7g/kg
Clay
32,7%
Sand
25,3%
Silt
42,0%
5–15 cm
pH H₂O
6,6
Org. C
32,3g/kg
Clay
35,5%
Sand
24,0%
Silt
40,5%
15–30 cm
pH H₂O
6,6
Org. C
18,7g/kg
Clay
35,8%
Sand
24,7%
Silt
39,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest38.9%
Crops29.1%
Built-up0.3%
Bare soil1.1%
Other (grassland, water…)30.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
6,3km
Basins crossed
1
Max stream order
5
Max drainage
7 394km²
Discharge in basins
1,7m³/s
Mean precip.
779mm/an
Mean T°
12,0°C
Moisture idx
-0,20
Max snow
2%
Mean runoff
396mm/an
Mean elev. (basins)
339m
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
Built-up
33,0%
Pesticides
17,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN V · 1IUCN III · 1IUCN IV · 1
Lot
IUCN IIINational Nature Reserve · 2015
8 km²
Falaises lotoises (Rapaces)
IUCN IVBiotope Protection Order · 2018
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.