HydroBASINS lev08 watershed · #2080015750
Bassin de Fiume Albegna
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 : Grosseto, Viterbo
Sub-basin area
1 392,8km²
Upstream area
1 392,8km²
Discharge
0,09m³/s
Mean elev.
156m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 1256.7 km²90.1% of basin
- 108.7 km²7.8% of basin
30 intersecting protected areas
Boschi delle Colline di Capalbio
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
60.23 km² overlap
Monte Argentario, Isolotto di Porto Ercole e Argentarola
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
57.21 km² overlap
Monte Argentario, Isolotto di Porto Ercole e Argentarola
IUCN Not ReportedSpecial Protection Area (Birds Directive)
57.21 km² overlap
Parco naturale della Maremma
IUCN IVRegional/Provincial Nature Park
50.05 km² overlap
Laguna di Orbetello
IUCN Not ReportedSpecial Protection Area (Birds Directive)
36.94 km² overlap
Laguna di Orbetello
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
36.94 km² overlap
Monti dell'Uccellina
IUCN Not ReportedSpecial Protection Area (Birds Directive)
32.16 km² overlap
Monti dell'Uccellina
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
32.16 km² overlap
Monte Labbro e alta valle dell'Albegna
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
31.47 km² overlap
21 more protected areassorted by overlap area
Monte Labbro e alta valle dell'Albegna
IUCN Not ReportedSpecial Protection Area (Birds Directive)
31.47 km² overlap
International significance Natural Marine Area
28.49 km² overlap
Isola del Giglio
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
20.94 km² overlap
Isola del Giglio
IUCN Not ReportedSpecial Protection Area (Birds Directive)
20.94 km² overlap
Regional/Provincial Nature Reserve
19.92 km² overlap
Medio corso del Fiume Albegna
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
19.91 km² overlap
Medio corso del Fiume Albegna
IUCN Not ReportedSpecial Protection Area (Birds Directive)
19.91 km² overlap
National Park
13.02 km² overlap
Pianure del Parco della Maremma
IUCN Not ReportedSpecial Protection Area (Birds Directive)
9.76 km² overlap
Laguna di Orbetello
IUCN IVWetland of International Importance (Ramsar Site)
8.93 km² overlap
State Nature Reserve
6.24 km² overlap
State Nature Reserve
5.13 km² overlap
Pineta Granducale dell'Uccellina
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.08 km² overlap
Pineta Granducale dell'Uccellina
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.08 km² overlap
Lago di Burano
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.89 km² overlap
Duna di Feniglia
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.58 km² overlap
Lago di Burano
IUCN IVWetland of International Importance (Ramsar Site)
4.07 km² overlap
Isola di Giannutri - area terrestre e marina
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.04 km² overlap
Isola di Giannutri - area terrestre e marina
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.04 km² overlap
State Nature Reserve
3.90 km² overlap
Riserva naturale Rocconi
IUCN IVRegional/Provincial Nature Reserve
3.47 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 379 distinct species · 70 167 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Albegna : 33 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 102 interactions GloBI sur 3 types (connectance 10.8%, filtre Serrano α=0.2). 11 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°
14,7°C
Annual rain
590mm
Moisture idx (CMI)
-0,38
Runoff
229mm/an
PET
956mm
AET
500mm
Mean slope
5,6°
Water table
262cm
Forest
18%
Crops
25%
Urban
0%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)