Ontologia

HydroBASINS lev08 watershed · #2080047840

Bassin de Fiume Silis

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 : Sassari

Coastal basinPfafstetter: 21800159

Sub-basin area

353km²

Upstream area

353km²

Discharge

0,38m³/s

Mean elev.

220m

Administrative coverage

1 dept-equivalent regions (GADM L2)

3 intersecting protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

1 258 distinct species · 4 513 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 513 obs · 10 cellules
Obs. / cellule
≥ 1 479
1 479–1 478
784–1 478
388–783
< 388

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

Ecological tissue

Sample of 44 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 Fiume Silis : 35 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 101 interactions GloBI sur 6 types (connectance 10.7%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
44
Interactions affichées
101
Connectance
0.107
Patrimoniales
1
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°

15,6°C

Annual rain

638mm

Moisture idx (CMI)

-0,33

Runoff

204mm/an

PET

955mm

AET

522mm

Mean slope

7,3°

Water table

502cm

Forest

1%

Crops

23%

Urban

4%

Protected

3%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)