Ontologia

Rivière· 5 segments

Ruisseau du Jarras

Crosses 2 administrative regions : Gers, Landes

rivière

Total length

13km

Max discharge

51,7m³/s

Max Strahler

4

Segments matched

5

River geography2 admin regions · 7 communes

Parent watershed

hybas-2080575920237 km²

2 administrative regions crossed (GADM L2)

  • Gers
    Occitanie · France
    8.4 km
    in this dpt
  • Landes
    Nouvelle-Aquitaine · France
    0.3 km
    in this dpt
7 communes (L5)

2 intersecting protected areas

  • L'Adour

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

  • Vallée de l'Adour

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

1 page = 1 named river (aggregation of 5 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 128 distinct species · 6 609 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 50 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 Ruisseau du Jarras : 40 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 134 interactions GloBI sur 6 types (connectance 10.9%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
50
Interactions affichées
134
Connectance
0.109
Patrimoniales
2
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

13km

Max discharge

51,7m³/s

Max Strahler

4

Segments matched

5

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.