Rivière· 76 segments
Markarfljót
Crosses 7 administrative regions : Austur-Landeyjahreppur, Fljótshlíðarhreppur, Holta- og Landasveit, Hvolhreppur, Rangárvallahreppur +2
Total length
123km
Max discharge
88,9m³/s
Max Strahler
5
Segments matched
76
River geography7 admin regions · 0 communes
7 administrative regions crossed (GADM L2)
- Vestur-EyjafjallahreppurSuðurland · Iceland49.4 kmin this dpt
- RangárvallahreppurSuðurland · Iceland34.8 kmin this dpt
- FljótshlíðarhreppurSuðurland · Iceland28.5 kmin this dpt
- HvolhreppurSuðurland · Iceland8.1 kmin this dpt
- Uten navn - syslaSuðurland · Iceland5.4 kmin this dpt
- Holta- og LandasveitSuðurland · Iceland0.6 kmin this dpt
- Austur-LandeyjahreppurSuðurland · Iceland0.0 kmin this dpt
1 intersecting protected areas
Fjallabak
IUCN VNature Reserve
1 page = 1 named river (aggregation of 76 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
466 distinct species · 494 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 15 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 Markarfljót : 9 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 29 interactions GloBI sur 1 type (connectance 24.2%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
123km
Max discharge
88,9m³/s
Max Strahler
5
Segments matched
76
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.