Ontologia

HydroBASINS lev08 watershed · #7080394790

Bassin de Rivière Saint-Germain

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 : Acton, Drummond, Le Val-Saint-François

Pfafstetter: 72530428

Sub-basin area

611,5km²

Upstream area

611,6km²

Discharge

13,51m³/s

Mean elev.

116m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rivière Noire469 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

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

Species present

931 distinct species · 24 992 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

24 992 obs · 15 cellules
Obs. / cellule
≥ 7 274
5 516–7 273
921–5 515
634–920
< 634

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

Ecological tissue

Sample of 35 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 Rivière Saint-Germain : 26 espèces reliées par 81 interactions GloBI sur 4 types (connectance 12.9%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
81
Connectance
0.129
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°

5,2°C

Annual rain

1 030mm

Moisture idx (CMI)

0,21

Runoff

697mm/an

PET

817mm

AET

667mm

Mean slope

0,9°

Water table

38cm

Forest

85%

Crops

38%

Urban

3%

Protected

0%

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