HydroBASINS lev08 watershed · #7080640230
Bassin de Roanoke 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 7 administrative regions : Bertie, Brunswick, Halifax, Martin, Mecklenburg +2
Sub-basin area
2 971,3km²
Upstream area
23 380,4km²
Discharge
300,11m³/s
Mean elev.
63m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Island Creek435 km²
- Bassin de Nutbush Creek302 km²
7 dept-equivalent regions (GADM L2)
- 742.9 km²25.0% of basin
- Mecklenburg710.0 km²23.9% of basin
- 495.5 km²16.7% of basin
- Warren434.9 km²14.6% of basin
- 334.2 km²11.2% of basin
- Brunswick174.6 km²5.9% of basin
- Martin80.0 km²2.7% of basin
12 intersecting protected areas
Roanoke River
IUCN IVNational Wildlife Refuge
48.82 km² overlap
Conservation Easement
18.26 km² overlap
Easement
12.22 km² overlap
Reserve Program
7.32 km² overlap
Reserve Program
2.17 km² overlap
Conoconnara Site
IUCN Not AssignedConservation Easement
0.81 km² overlap
Larkspur Ridge Fee
IUCN VPrivate Conservation Land
0.39 km² overlap
Wetlands
0.28 km² overlap
Preserve
0.22 km² overlap
3 more protected areassorted by overlap area
Reserve Program
0.16 km² overlap
Ellington Branch
IUCN Not AssignedConservation Easement
0.06 km² overlap
Dick Cross
IUCN VState Wildlife Management Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 336 distinct species · 184 263 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Roanoke River : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 72 interactions GloBI sur 3 types (connectance 12.8%, filtre Serrano α=0.2). 12 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°
14,6°C
Annual rain
1 135mm
Moisture idx (CMI)
-0,11
Runoff
449mm/an
PET
1 268mm
AET
932mm
Mean slope
1,1°
Water table
65cm
Forest
69%
Crops
22%
Urban
1%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)