Ontologia

Rivière· 22 segments

La Douze

Crosses 2 administrative regions : Gers, Landes

rivière

Total length

128km

Max discharge

26,5m³/s

Max Strahler

4

Segments matched

22

River geography2 admin regions · 40 communes

Parent watershed

hybas-2080570050443 km²

2 administrative regions crossed (GADM L2)

  • Landes
    Nouvelle-Aquitaine · France
    55.6 km
    in this dpt
  • Gers
    Occitanie · France
    39.2 km
    in this dpt
40 communes (L5)

6 intersecting protected areas

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

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).

Espèces affichées
40
Interactions affichées
79
Connectance
0.101
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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.