Vallées du Tarn, de l'Aveyron, du Viaur, de l'Agout et du Gijou
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2007
171 km²
Subdivision · FRA
Castelsarrasin 2e Canton
France
CfaTemperate, no dry season, hot summer(100 %)
Species observed
1 556
Observations
8 628
Area
50,3km²
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 Castelsarrasin 2e Canton : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 58 interactions GloBI sur 2 types (connectance 12.5%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
31
Interactions affichées
58
Connectance
0.125
Patrimoniales
2
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 556 distinct species · 8 628 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
13,8°C
Annual rain
699mm
Warmest m°
27,1°C
Coldest m°
2,4°C
Elevation: 80 m on average (min 71 m, max 120 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
13,8°C
Annual rain
699mm
Warmest month
27,1°C
Coldest month
2,4°C
Mean alt.
80m
Min
71m
Max
120m
Std. dev.
6m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
7,0
Org. C
28,1g/kg
Clay
27,4%
Sand
27,0%
Silt
45,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Tarn-et-Garonne
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,9
Org. C
48,4g/kg
Clay
26,7%
Sand
27,7%
Silt
45,5%
5–15 cm
pH H₂O
7,1
Org. C
17,7g/kg
Clay
26,8%
Sand
26,9%
Silt
46,3%
15–30 cm
pH H₂O
7,1
Org. C
18,2g/kg
Clay
28,8%
Sand
26,3%
Silt
44,9%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest16.2%
Crops48.7%
Built-up1.1%
Bare soil1.8%
Other (grassland, water…)32.1%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 3 rivers
Hydrology metrics for this exact territory
Stream length here
11,4km
Basins crossed
2
Max stream order
6
Max drainage
15 586km²
Discharge in basins
13,1m³/s
Mean precip.
755mm/an
Mean T°
12,7°C
Moisture idx
-0,24
Max snow
2%
Mean runoff
258mm/an
Mean elev. (basins)
156m
Watersheds crossing here
Rivers / streams (3, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,4nW
Built-up
114,4%
Pesticides
45,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN Not Reported · 1IUCN IV · 1
Cours De La Garonne, De L\'Aveyron, Du Viaur Et Du Tarn
IUCN IVBiotope Protection Order · 1988
13 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
Sub-administrations5
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.