HydroBASINS lev08 watershed · #2080173500
Bassin de Brúará
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 5 administrative regions : Biskupstungnahreppur, Grímsnes- og Grafningshreppur, Laugardalshreppur, Skeiðahreppur, Þingvallahreppur
Sub-basin area
677,4km²
Upstream area
677,4km²
Discharge
33,77m³/s
Mean elev.
294m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 334.4 km²49.0% of basin
- 181.6 km²26.6% of basin
- 150.1 km²22.0% of basin
- 15.8 km²2.3% of basin
- 0.0 km²0.0% of basin
1 intersecting protected areas
Þingvellir
IUCN IINational Park
1.46 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 159 distinct species · 17 330 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Brúará : 17 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 60 interactions GloBI sur 4 types (connectance 14.8%, filtre Serrano α=0.2). 12 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°
3,2°C
Annual rain
1 152mm
Moisture idx (CMI)
0,72
Runoff
1 546mm/an
PET
320mm
AET
318mm
Mean slope
6,4°
Water table
0cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)