Ontologia

HydroBASINS lev08 watershed · #2080047740

Bassin de Riu Pitziu

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 : Oristano

2% lakePfafstetter: 21800152

Sub-basin area

404km²

Upstream area

404km²

Discharge

1,64m³/s

Mean elev.

179m

Administrative coverage

1 dept-equivalent regions (GADM L2)

8 intersecting protected areas

  • Stagno di Cabras

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    47.99 km² overlap

  • Stagno di Cábras

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    36.24 km² overlap

  • Stagno di Cabras

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    36.20 km² overlap

  • Stagno di Mistras di Oristano

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    2.84 km² overlap

  • Is Arenas

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.30 km² overlap

  • Riu Sos Mulinos - Sos Lavros - M. Urtigu

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.27 km² overlap

  • Stagno di Mistras

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.08 km² overlap

  • Stagno di Mistras

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    0.07 km² overlap

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

Species present

894 distinct species · 6 587 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 587 obs · 9 cellules
Obs. / cellule
≥ 3 460
3 460–3 459
729–3 459
187–728
< 187

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

Ecological tissue

Sample of 38 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 Riu Pitziu : 32 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 60 interactions GloBI sur 4 types (connectance 7.7%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
60
Connectance
0.077
Patrimoniales
2
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

659mm

Moisture idx (CMI)

-0,34

Runoff

185mm/an

PET

996mm

AET

530mm

Mean slope

3,3°

Water table

252cm

Forest

3%

Crops

28%

Urban

1%

Protected

0%

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