HydroBASINS lev08 watershed · #2080047420
Bassin de Fiume San Leonardo
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 2 administrative regions : Catania, Syracuse
Sub-basin area
863,8km²
Upstream area
863,8km²
Discharge
0,09m³/s
Mean elev.
236m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 704.5 km²81.5% of basin
- 139.5 km²16.1% of basin
18 intersecting protected areas
Biviere di Lentini, tratto mediano e foce del Fiume Simeto e area antistante la foce
IUCN Not ReportedSpecial Protection Area (Birds Directive)
23.31 km² overlap
Bosco Pisano
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
20.83 km² overlap
Monti Climiti
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
16.93 km² overlap
Cozzo Ogliastri
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
16.00 km² overlap
Torrente Sapillone
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.68 km² overlap
Regional/Provincial Nature Reserve
4.17 km² overlap
Fondali di Brucoli - Agnone
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.69 km² overlap
Monte Lauro
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.20 km² overlap
Foce del Fiume Simeto e Lago Gornalunga
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.47 km² overlap
9 more protected areassorted by overlap area
Saline di Priolo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.32 km² overlap
Saline di Priolo
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.32 km² overlap
Saline di Augusta
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.14 km² overlap
Saline di Augusta
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.14 km² overlap
Regional/Provincial Nature Reserve
0.74 km² overlap
Regional/Provincial Nature Reserve
0.58 km² overlap
Grotta Palombara
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.32 km² overlap
Regional/Provincial Nature Reserve
0.03 km² overlap
Valle del Fiume Anapo, Cavagrande del Calcinara, Cugni di Sortino
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 845 distinct species · 12 356 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 47 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 Fiume San Leonardo : 38 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 84 interactions GloBI sur 4 types (connectance 7.4%, filtre Serrano α=0.2). 10 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°
16,5°C
Annual rain
506mm
Moisture idx (CMI)
-0,53
Runoff
134mm/an
PET
1 091mm
AET
429mm
Mean slope
5,2°
Water table
337cm
Forest
1%
Crops
5%
Urban
14%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)