HydroBASINS lev08 watershed · #2080601360
Bassin de Río Arlanza
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 : Burgos
Sub-basin area
52,9km²
Upstream area
2 137,5km²
Discharge
14,6m³/s
Mean elev.
826m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Arlanza947 km²
- Bassin de Río del Ángel250 km²
1 dept-equivalent regions (GADM L2)
- 53.0 km²100.0% of basin
1 intersecting protected areas
Riberas del Río Arlanza y afluentes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.59 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
303 distinct species · 571 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Río Arlanza : 33 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 72 interactions GloBI sur 5 types (connectance 8.4%, filtre Serrano α=0.2). 9 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°
11,2°C
Annual rain
508mm
Moisture idx (CMI)
-0,48
Runoff
116mm/an
PET
983mm
AET
435mm
Mean slope
3,0°
Water table
261cm
Forest
0%
Crops
73%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)