HydroBASINS lev08 watershed · #2080172050
Bassin de Mattistjønnbekken
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 1 administrative regions : Lierne
Sub-basin area
471,1km²
Upstream area
471,1km²
Discharge
10,95m³/s
Mean elev.
603m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 474.1 km²100.0% of basin
11 intersecting protected areas
Blåfjella-Skjækerfjella
IUCN IINational Park
103.44 km² overlap
Blåfjella - Skjækerfjella
IUCN Not ReportedEmerald Network
103.44 km² overlap
Lierne
IUCN Not ReportedEmerald Network
56.05 km² overlap
Lierne
IUCN IINational Park
56.05 km² overlap
Holden
IUCN IaNature Reserve
20.40 km² overlap
Ulendeltaet
IUCN IaNature Reserve
1.10 km² overlap
Ulendeltaet
IUCN Not ReportedEmerald Network
1.10 km² overlap
Ulendeltaet
IUCN IaWetland of International Importance (Ramsar Site)
1.10 km² overlap
Storåa
IUCN IaNature Reserve
1.10 km² overlap
2 more protected areassorted by overlap area
Guselva
IUCN IaNature Reserve
0.73 km² overlap
Julesstraumen
IUCN IaNature Reserve
0.12 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 037 distinct species · 17 439 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Bassin de Mattistjønnbekken : 26 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 67 interactions GloBI sur 4 types (connectance 9.0%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
1,6°C
Annual rain
992mm
Moisture idx (CMI)
0,57
Runoff
766mm/an
PET
421mm
AET
391mm
Mean slope
6,8°
Water table
279cm
Forest
57%
Crops
0%
Urban
0%
Protected
37%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)