Ontologia

HydroBASINS lev08 watershed · #2080585770

Bassin de Fiume Ombrone

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 : Siena

Pfafstetter: 21500767

Sub-basin area

191,1km²

Upstream area

956,4km²

Discharge

11,34m³/s

Mean elev.

255m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Fiume Ombrone80 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

1 144 distinct species · 4 773 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 773 obs · 6 cellules
Obs. / cellule
≥ 1 070
1 070–1 069
982–1 069
872–981
< 872

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 Ombrone : 32 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 108 interactions GloBI sur 5 types (connectance 10.9%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
45
Interactions affichées
108
Connectance
0.109
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°

13,8°C

Annual rain

721mm

Moisture idx (CMI)

-0,27

Runoff

346mm/an

PET

993mm

AET

607mm

Mean slope

7,1°

Water table

306cm

Forest

37%

Crops

45%

Urban

0%

Protected

2%

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