Ruisseau· 5 segments

Ragn d'Err

Crosses 1 administrative regions : Albula

ruisseau

Total length

9km

Max discharge

1,3m³/s

Max Strahler

Segments matched

River geography1 admin regions · 0 communes

Parent watershed

hybas-20805125001681 km²

1 administrative regions crossed (GADM L2)

Albula
Graubünden · Switzerland
8.5 km
in this dpt

8 intersecting protected areas

Piz Ela
IUCN IV
Federal Hunting Reserves
Pro Lung
IUCN IV
Federal Inventory of Dry Grasslands and Pastures of National Importance
Crap digl Diavel
IUCN IV
Federal Inventory of Dry Grasslands and Pastures of National Importance
Ragn d'Err
IUCN IV
Federal Inventory of Alluvial Zones of National Importance
Proschen-Dafora
IUCN IV
Federal Inventory of Dry Grasslands and Pastures of National Importance
Tinizong
IUCN IV
Federal Inventory of Dry Grasslands and Pastures of National Importance
Tgant Pensa
IUCN IV
Federal Inventory of Dry Grasslands and Pastures of National Importance
Gioppa
IUCN IV
Federal Inventory of Dry Grasslands and Pastures of National Importance

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

Species present

2 228 distinct species · 29 113 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 25 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Ragn d'Err : 12 espèces reliées par 122 interactions GloBI sur 5 types (connectance 30.0%, filtre Serrano α=0.2). 17 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

122

Connectance

0.300

Patrimoniales

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)