Ontologia

HydroBASINS lev08 watershed · #2080547020

Bassin de l'Auvézère

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 : Corrèze, Dordogne, Haute-Vienne

Pfafstetter: 23216029

Sub-basin area

922,2km²

Upstream area

922,2km²

Discharge

15,47m³/s

Mean elev.

294m

Administrative coverage

Hydrographic chain

Drains into

Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

81 communes (GADM L5)

7 intersecting protected areas

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

Species present

3 857 distinct species · 140 552 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

154 136 obs · 30 cellules
Obs. / cellule
≥ 10 816
9 864–10 815
6 381–9 863
4 506–6 380
< 4 506

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

Ecological tissue

Sample of 45 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 l'Auvézère : 43 espèces + 2 bulles famille, 84 interactions GloBI documentées sur 7 types (connectance 8.5%, filtre Serrano α=0.2). Les 2 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
45
Interactions affichées
84
Connectance
0.085
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°

11,4°C

Annual rain

971mm

Moisture idx (CMI)

0,02

Runoff

516mm/an

PET

952mm

AET

711mm

Mean slope

3,8°

Water table

267cm

Forest

25%

Crops

7%

Urban

0%

Protected

0%

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