Rivière· 22 segments
La Douze
Crosses 2 administrative regions : Gers, Landes
Total length
128km
Max discharge
26,5m³/s
Max Strahler
4
Segments matched
22
River geography2 admin regions · 40 communes
2 administrative regions crossed (GADM L2)
40 communes (L5)For countries with L5
- Saint-Avit10.28 km
- Arue8.96 km
- Cazaubon6.87 km
- Lucbardez-et-Bargues6.60 km
- Manciet6.09 km
- Roquefort5.18 km
- Canenx-et-Réaut4.77 km
- Mont-de-Marsan4.69 km
- Lupiac4.63 km
- Larée4.33 km
- Margouët-Meymes4.03 km
- Saint-Justin3.88 km
- Labastide-d'Armagnac3.12 km
- Séailles3.06 km
- Sarbazan2.82 km
- Mauvezin-d'Armagnac2.45 km
- Avéron-Bergelle2.41 km
- Espas2.25 km
- Castelnavet1.45 km
- Maillères1.27 km
- Ayzieu1.21 km
- Aignan1.13 km
- Peyrusse-Grande1.12 km
- Betbezer-d'Armagnac0.94 km
- Pouydesseaux0.52 km
- Saint-Pierre-d'Aubézies0.50 km
- Lagrange0.16 km
- Peyrusse-Vieille0.14 km
- Cravencères0.00 km
- Bourrouillan0.00 km
- Dému0.00 km
- Sainte-Christie-d'Armagnac0.00 km
- Monclar0.00 km
- Lias-d'Armagnac0.00 km
- Campagne-d'Armagnac0.00 km
- Mauléon-d'Armagnac0.00 km
- Marguestau0.00 km
- Cachen0.00 km
- Saint-Pierre-du-Mont0.00 km
- Bostens0.00 km
6 intersecting protected areas
Landes De Gascogne
IUCN VRegional Nature Park
Réseau hydrographique du Midou et du Ludon
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Réseau hydrographique des affluents de la Midouze
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
La Gélise
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Étangs d'Armagnac
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Vallon Du Cros
IUCN IVBiotope Protection Order
1 page = 1 named river (aggregation of 22 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
759 distinct species · 3 125 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Douze : 37 espèces + 3 bulles famille, 79 interactions GloBI documentées sur 5 types (connectance 10.1%, filtre Serrano α=0.2). Les 3 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
128km
Max discharge
26,5m³/s
Max Strahler
4
Segments matched
22
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.