Ruisseau· 5 segments
La Tancanne
Crosses 2 administrative regions : Lot-et-Garonne, Tarn-et-Garonne
Total length
19km
Max discharge
1,4m³/s
Max Strahler
2
Segments matched
5
River geography2 admin regions · 15 communes
2 administrative regions crossed (GADM L2)
- Lot-et-GaronneNouvelle-Aquitaine · France27.5 kmin this dpt
- Tarn-et-GaronneOccitanie · France2.1 kmin this dpt
15 communes (L5)For countries with L5
- Penne-d'Agenais10.17 km
- Hautefage-la-Tour5.55 km
- Massels3.28 km
- Auradou2.79 km
- Frespech2.28 km
- Valeilles1.63 km
- Dausse1.34 km
- Massoulès1.20 km
- Cazideroque0.52 km
- Monbalen0.36 km
- Saint-Beauzeil0.30 km
- Saint-Amans-du-Pech0.20 km
- Anthé0.01 km
- Saint-Sylvestre-sur-Lot0.00 km
- Blaymont0.00 km
4 intersecting protected areas
Coteaux du Boudouyssou et plateau de Lascrozes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Le Boudouyssou
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
pech de dosse
IUCN IVLand acquired by a regional conservatory of natural areas
Land acquired by a regional conservatory of natural areas
1 page = 1 named river (aggregation of 5 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 397 distinct species · 9 568 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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).
Indicateurs du tissu écologique
Tissu écologique de La Tancanne : 27 espèces + 5 bulles famille, 65 interactions GloBI documentées sur 5 types (connectance 13.1%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
19km
Max discharge
1,4m³/s
Max Strahler
2
Segments matched
5
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.