Ontologia

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

Coastal basinPfafstetter: 21603507

Sub-basin area

57,3km²

Upstream area

57,3km²

Discharge

0,6m³/s

Mean elev.

15m

Administrative coverage

1 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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.

Densité d'observations

382 861 obs · 6 cellules
Obs. / cellule
≥ 271 168
271 168–271 167
66 765–271 167
14 679–66 764
< 14 679

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

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).

Espèces affichées
59
Interactions affichées
196
Connectance
0.115
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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)