Ontologia

HydroBASINS lev08 watershed · #7080640590

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 2 administrative regions : Bertie, Martin

Pfafstetter: 73214013

Sub-basin area

24,7km²

Upstream area

23 697,1km²

Discharge

304,49m³/s

Mean elev.

16m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Roanoke River448 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

425 distinct species · 9 424 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 424 obs · 1 cellules
Obs. / cellule
≥ 9 424
9 424–9 423
9 424–9 423
9 424–9 423
< 9 424

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 44 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Roanoke River : 35 espèces reliées par 95 interactions GloBI sur 4 types (connectance 10.0%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
44
Interactions affichées
95
Connectance
0.100
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

15,6°C

Annual rain

1 230mm

Moisture idx (CMI)

-0,03

Runoff

466mm/an

PET

1 268mm

AET

999mm

Mean slope

0,7°

Water table

21cm

Forest

48%

Crops

24%

Urban

0%

Protected

22%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)