Causses Du Quercy
IUCN VRegional Nature Park · 1999
1 832 km²
Commune · FRA
Cajarc
France
CfbTemperate, no dry season, warm summer(83 %)
Species observed
1 399
Observations
10 797
Area
25,5km²
Ecological tissue
Sample of 34 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 Cajarc : 31 espèces + 3 bulles famille, 75 interactions GloBI documentées sur 3 types (connectance 13.4%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
34
Interactions affichées
75
Connectance
0.134
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
1 399 distinct species · 10 797 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,6°C
Annual rain
933mm
Warmest m°
25,8°C
Coldest m°
1,7°C
Elevation: 271 m on average (min 166 m, max 347 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,6°C
Annual rain
933mm
Warmest month
25,8°C
Coldest month
1,7°C
Mean alt.
271m
Min
166m
Max
347m
Std. dev.
55m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(83 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,8
Org. C
36,1g/kg
Clay
31,6%
Sand
23,1%
Silt
45,3%
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
6,7
Org. C
59,6g/kg
Clay
30,0%
Sand
23,3%
Silt
46,8%
5–15 cm
pH H₂O
6,9
Org. C
29,8g/kg
Clay
31,9%
Sand
22,4%
Silt
45,8%
15–30 cm
pH H₂O
6,8
Org. C
19,0g/kg
Clay
33,0%
Sand
23,6%
Silt
43,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest31.3%
Crops32.3%
Built-up0.8%
Bare soil1.1%
Other (grassland, water…)34.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
5,4km
Basins crossed
2
Max stream order
5
Max drainage
7 394km²
Discharge in basins
2,5m³/s
Mean precip.
779mm/an
Mean T°
12,0°C
Moisture idx
-0,20
Max snow
3%
Mean runoff
396mm/an
Mean elev. (basins)
339m
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
0,2nW
Built-up
78,8%
Pesticides
32,5kg/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.