Ontologia

HydroBASINS lev08 watershed · #2080585660

Bassin du Ger

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 : Ariège, Haute-Garonne

Pfafstetter: 23214492

Sub-basin area

262,9km²

Upstream area

263km²

Discharge

3,26m³/s

Mean elev.

751m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de la Noue239 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

42 communes (GADM L5)

7 intersecting protected areas

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

Species present

3 253 distinct species · 70 216 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

70 216 obs · 7 cellules
Obs. / cellule
≥ 25 727
25 727–25 726
8 413–25 726
8 038–8 412
< 8 038

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 du Ger : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 5 bulles famille, 64 interactions GloBI documentées sur 3 types (connectance 12.1%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
33
Interactions affichées
64
Connectance
0.121
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°

10,0°C

Annual rain

926mm

Moisture idx (CMI)

0,03

Runoff

383mm/an

PET

879mm

AET

700mm

Mean slope

15,5°

Water table

555cm

Forest

80%

Crops

1%

Urban

0%

Protected

0%

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