Ruisseau· 3 segments
Roslandsåna
Crosses 2 administrative regions : Klepp, Time
Total length
4km
Max discharge
3,8m³/s
Max Strahler
3
Segments matched
3
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
6 intersecting protected areas
Jaeren wetland system
IUCN IaWetland of International Importance (Ramsar Site)
Orrevatnet
IUCN Not ReportedEmerald Network
Orrevatnet
IUCN IaNature Reserve
Orrevatnet
IUCN Not ReportedZoological Protection of Species
Søndre Frøyland
IUCN IVProtected Landscape
Søndre Frøyland
IUCN IVWildlife Conservation Area
1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 418 distinct species · 22 571 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Roslandsåna : 18 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 3 types (connectance 19.6%, filtre Serrano α=0.2). 10 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
4km
Max discharge
3,8m³/s
Max Strahler
3
Segments matched
3
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.