Ontologia

HydroBASINS lev08 watershed · #2080554740

Bassin de la Dordogne

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 : Dordogne

Pfafstetter: 23216051

Sub-basin area

352,4km²

Upstream area

9 575,1km²

Discharge

214,96m³/s

Mean elev.

168m

Administrative coverage

Hydrographic chain

Drains into

Receives from 2 basins

1 dept-equivalent regions (GADM L2)

43 communes (GADM L5)

6 intersecting protected areas

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

Species present

2 739 distinct species · 66 121 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

66 132 obs · 10 cellules
Obs. / cellule
≥ 10 808
10 808–10 807
9 397–10 807
7 998–9 396
< 7 998

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

Ecological tissue

Sample of 44 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 la Dordogne : 40 espèces + 4 bulles famille, 83 interactions GloBI documentées sur 5 types (connectance 8.8%, filtre Serrano α=0.2). Les 4 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
44
Interactions affichées
83
Connectance
0.088
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°

12,3°C

Annual rain

846mm

Moisture idx (CMI)

-0,14

Runoff

465mm/an

PET

986mm

AET

680mm

Mean slope

6,0°

Water table

267cm

Forest

67%

Crops

4%

Urban

0%

Protected

1%

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