HydroBASINS lev08 watershed · #2080608520
Bassin de Riera de Calders
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 : Barcelona
Sub-basin area
323,6km²
Upstream area
1 898km²
Discharge
15,94m³/s
Mean elev.
547m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Riera Gavarresa459 km²
- Bassin de Torrent de la Reia205 km²
8 intersecting protected areas
Sant Llorenç del Munt i l'Obac
IUCN Not ReportedSpecial Protection Area (Birds Directive)
64.43 km² overlap
Sant Llorenç del Munt i l'Obac
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
64.43 km² overlap
Protection Plan
64.43 km² overlap
Protection Plan
48.33 km² overlap
Natural Park
33.93 km² overlap
Gallifa
IUCN VProtection Plan
2.63 km² overlap
Gallifa-Cingles de Bertí
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.63 km² overlap
Gallifa-Cingles de Bertí
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.63 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 184 distinct species · 81 204 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Riera de Calders : 25 espèces reliées par 112 interactions GloBI sur 6 types (connectance 12.4%, filtre Serrano α=0.2). 18 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°
13,4°C
Annual rain
692mm
Moisture idx (CMI)
-0,20
Runoff
242mm/an
PET
872mm
AET
585mm
Mean slope
9,0°
Water table
359cm
Forest
77%
Crops
16%
Urban
9%
Protected
36%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)