HydroBASINS lev08 watershed · #7080640120
Bassin de French Broad 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 : Madison
Sub-basin area
237,8km²
Upstream area
3 700,8km²
Discharge
105,16m³/s
Mean elev.
742m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
1 dept-equivalent regions (GADM L2)
- Madison237.8 km²100.0% of basin
2 intersecting protected areas
Marshall Watershed
IUCN VWatershed
2.07 km² overlap
Conservation Easement
0.74 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 233 distinct species · 24 981 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 49 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 French Broad River : 35 espèces reliées par 113 interactions GloBI sur 4 types (connectance 9.6%, filtre Serrano α=0.2). 14 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°
11,9°C
Annual rain
1 156mm
Moisture idx (CMI)
-0,03
Runoff
685mm/an
PET
1 185mm
AET
913mm
Mean slope
12,7°
Water table
508cm
Forest
99%
Crops
8%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)