Ontologia

HydroBASINS lev08 watershed · #7080185450

Bassin de Petaigan River

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 : Division No. 14

121% lakePfafstetter: 71230906

Sub-basin area

645,5km²

Upstream area

645,5km²

Discharge

0,39m³/s

Mean elev.

338m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #70801854000 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

150 distinct species · 328 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

328 obs · 13 cellules
Obs. / cellule
≥ 82
69–81
42–68
12–41
< 12

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 Petaigan River : 21 espèces reliées par 89 interactions GloBI sur 5 types (connectance 15.9%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
89
Connectance
0.159
Patrimoniales
0
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°

0,5°C

Annual rain

460mm

Moisture idx (CMI)

-0,34

Runoff

19mm/an

PET

695mm

AET

399mm

Mean slope

0,2°

Water table

1cm

Forest

31%

Crops

56%

Urban

0%

Protected

11%

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