HydroBASINS lev08 watershed · #2080058550
Bassin de Dalsá
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 2 administrative regions : Norður-Hérað, Vopnafjarðarhreppur
Sub-basin area
255,8km²
Upstream area
255,8km²
Discharge
7,78m³/s
Mean elev.
402m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 184.5 km²71.6% of basin
- 58.4 km²22.7% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
433 distinct species · 2 225 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 19 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 Dalsá : 14 espèces reliées par 16 interactions GloBI sur 3 types (connectance 9.4%, filtre Serrano α=0.2). 5 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°
0,9°C
Annual rain
1 229mm
Moisture idx (CMI)
0,75
Runoff
952mm/an
PET
300mm
AET
298mm
Mean slope
13,2°
Water table
0cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)