HydroBASINS lev08 watershed · #7080356040
Bassin de South Branch Big Sevogle 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 : Northumberland
Sub-basin area
789,3km²
Upstream area
789,5km²
Discharge
17,14m³/s
Mean elev.
310m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 791.5 km²100.0% of basin
9 intersecting protected areas
4023700
IUCN IINature Legacy protected area
27.22 km² overlap
Protected Natural Area
14.83 km² overlap
4024000
IUCN IINature Legacy protected area
14.50 km² overlap
4001400
IUCN IINature Legacy protected area
7.07 km² overlap
4023800
IUCN IINature Legacy protected area
5.19 km² overlap
4021300
IUCN IINature Legacy protected area
0.59 km² overlap
4023900
IUCN IINature Legacy protected area
0.13 km² overlap
Stony Brook
IUCN IIProtected Natural Area
0.11 km² overlap
Big Bald Mountain
IUCN IIProtected Natural Area
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
361 distinct species · 924 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 South Branch Big Sevogle River : 20 espèces reliées par 110 interactions GloBI sur 5 types (connectance 14.8%, filtre Serrano α=0.2). 19 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°
3,1°C
Annual rain
1 112mm
Moisture idx (CMI)
0,34
Runoff
684mm/an
PET
736mm
AET
624mm
Mean slope
2,9°
Water table
108cm
Forest
97%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)