HydroBASINS lev08 watershed · #2080016900
Bassin de Riera de Siurana
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 : Girona
Sub-basin area
57,3km²
Upstream area
57,3km²
Discharge
0,6m³/s
Mean elev.
15m
Administrative coverage
6 intersecting protected areas
Aiguamolls de l'Alt Empordà
IUCN Not ReportedSpecial Protection Area (Birds Directive)
15.15 km² overlap
Aiguamolls de l'Alt Empordà
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
15.15 km² overlap
Aiguamolls de l`Alt Empordà
IUCN VIProtection Plan
15.14 km² overlap
Aiguamolls de l`Empordà
IUCN VNatural Park
14.61 km² overlap
Aiguamolls de l’Empordà
IUCN Not ReportedWetland of International Importance (Ramsar Site)
12.61 km² overlap
Les Llaunes
IUCN IaNature Reserve (Integral)
4.83 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 043 distinct species · 382 861 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 51 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 Siurana : 26 espèces reliées par 196 interactions GloBI sur 5 types (connectance 11.5%, filtre Serrano α=0.2). 33 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°
15,8°C
Annual rain
590mm
Moisture idx (CMI)
-0,37
Runoff
325mm/an
PET
941mm
AET
503mm
Mean slope
0,6°
Water table
44cm
Forest
14%
Crops
80%
Urban
1%
Protected
26%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)