Ontologia

Rivière· 34 segments

Ogre

Crosses 3 administrative regions : Cesis, Madona, Ogre

rivière

Total length

200km

Max discharge

659,9m³/s

Max Strahler

6

Segments matched

34

River geography3 admin regions · 0 communes

Parent watershed

hybas-20802810601670 km²

3 administrative regions crossed (GADM L2)

  • Ogre
    Riga · Latvia
    95.1 km
    in this dpt
  • Madona
    Vidzeme · Latvia
    66.7 km
    in this dpt
  • Cesis
    Vidzeme · Latvia
    11.7 km
    in this dpt

15 intersecting protected areas

  • Vestiena

    IUCN Not Reported

    Special Protection Area (Birds Directive)

  • Vestiena

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

  • Vestiena

    IUCN V

    Protected Landscape Area

  • Vecpiebalga

    IUCN V

    Protected Landscape Area

  • Vecpiebalga

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

  • Vecpiebalga

    IUCN Not Reported

    Special Protection Area (Birds Directive)

  • Ogres ieleja

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

  • Ogres ieleja

    IUCN II

    Nature Park

  • Palšu purvs

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

6 more protected areas

1 page = 1 named river (aggregation of 34 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

150 distinct species · 219 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 35 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 Ogre : 23 espèces reliées par 91 interactions GloBI sur 4 types (connectance 15.3%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
91
Connectance
0.153
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

200km

Max discharge

659,9m³/s

Max Strahler

6

Segments matched

34

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