HydroBASINS lev08 watershed · #7080062400
Bassin de Back River
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 : Division No. 1
Sub-basin area
293km²
Upstream area
293,2km²
Discharge
9,78m³/s
Mean elev.
138m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- Division No. 1293.7 km²100.0% of basin
1 intersecting protected areas
Avalon Wilderness Reserve
IUCN IbWilderness Reserve
199.21 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
88 distinct species · 641 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Back River : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 52 interactions GloBI sur 2 types (connectance 12.8%, filtre Serrano α=0.2). 10 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°
4,5°C
Annual rain
1 451mm
Moisture idx (CMI)
0,61
Runoff
1 119mm/an
PET
570mm
AET
564mm
Mean slope
1,8°
Water table
106cm
Forest
58%
Crops
1%
Urban
0%
Protected
68%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)