Ontologia

HydroBASINS lev08 watershed · #7080253390

Bassin de Rivière Grandmesnil

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 : Sept-Rivières--Caniapiscau

92% lakePfafstetter: 72404284

Sub-basin area

640,2km²

Upstream area

640,3km²

Discharge

12,86m³/s

Mean elev.

609m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rivière Toulnustouc162 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

19 distinct species · 47 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

47 obs · 3 cellules
Obs. / cellule
≥ 45
45–44
45–44
1–44
< 1

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

Ecological tissue

Sample of 8 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 Grandmesnil : 7 espèces reliées par 6 interactions GloBI sur 2 types (connectance 16.7%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
9
Interactions affichées
6
Connectance
0.167
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°

-2,7°C

Annual rain

1 071mm

Moisture idx (CMI)

0,49

Runoff

671mm/an

PET

541mm

AET

514mm

Mean slope

6,0°

Water table

107cm

Forest

85%

Crops

0%

Urban

0%

Protected

2%

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