HydroBASINS lev08 watershed · #7080034950
Bassin de Branche de l'Est
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 : La Haute-Gaspésie
Sub-basin area
312km²
Upstream area
312km²
Discharge
1,08m³/s
Mean elev.
463m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 306.3 km²97.9% of basin
19 intersecting protected areas
Land reserved for protected area
37.97 km² overlap
Habitat of a threatened or vulnerable wildlife species
32.79 km² overlap
Quebec's national park
32.60 km² overlap
Ecological reserve
6.43 km² overlap
11256R170 Biological Refuge
IUCN IVBiological refuge
6.24 km² overlap
Land set aside Mont-Saint-Pierre
IUCN Not ReportedLand set aside
5.23 km² overlap
11256R168 Biological Refuge
IUCN IVBiological refuge
3.12 km² overlap
Water fowl gathering area
2.38 km² overlap
11256R171 Biological Refuge
IUCN IVBiological refuge
2.06 km² overlap
10 more protected areassorted by overlap area
11257R193 Biological Refuge
IUCN IVBiological refuge
1.83 km² overlap
11256R172 Biological Refuge
IUCN IVBiological refuge
1.60 km² overlap
Water fowl gathering area
1.49 km² overlap
Water fowl gathering area
1.42 km² overlap
11256R173 Biological Refuge
IUCN IVBiological refuge
1.34 km² overlap
004-002 Biological Refuge
IUCN IVBiological refuge
1.03 km² overlap
Water fowl gathering area
0.63 km² overlap
Water fowl gathering area
0.44 km² overlap
Forest refuge
0.27 km² overlap
lac Marsoui Old-Growth Forest
IUCN IIIOld-growth forest
0.24 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
899 distinct species · 8 797 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Branche de l'Est : 23 espèces reliées par 99 interactions GloBI sur 4 types (connectance 14.1%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
1,0°C
Annual rain
1 084mm
Moisture idx (CMI)
0,48
Runoff
676mm/an
PET
557mm
AET
525mm
Mean slope
13,9°
Water table
373cm
Forest
97%
Crops
0%
Urban
0%
Protected
13%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)