Ontologia

HydroBASINS lev08 watershed · #2080549960

Bassin de Cavo Distretto Cattanea

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 3 administrative regions : Alessandria, Novara, Pavia

Pfafstetter: 21406703

Sub-basin area

188,4km²

Upstream area

28 154,9km²

Discharge

642,34m³/s

Mean elev.

87m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Fiume Po734 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

527 distinct species · 16 658 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

16 658 obs · 4 cellules
Obs. / cellule
≥ 13 623
13 623–13 622
2 243–13 622
2 243–2 242
< 2 243

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

Ecological tissue

Sample of 33 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 Cavo Distretto Cattanea : 24 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 77 interactions GloBI sur 2 types (connectance 14.6%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
77
Connectance
0.146
Patrimoniales
3
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°

12,8°C

Annual rain

978mm

Moisture idx (CMI)

0,03

Runoff

729mm/an

PET

947mm

AET

713mm

Mean slope

0,2°

Water table

9cm

Forest

1%

Crops

83%

Urban

6%

Protected

1%

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