Ontologia

HydroBASINS lev08 watershed · #7080622660

Bassin de Little 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 3 administrative regions : Alleghany, Grayson, Wilkes

Pfafstetter: 74268996

Sub-basin area

298,5km²

Upstream area

298,5km²

Discharge

5,2m³/s

Mean elev.

868m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de New River904 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

4 intersecting protected areas

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

Species present

1 789 distinct species · 28 063 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

28 063 obs · 10 cellules
Obs. / cellule
≥ 4 500
4 500–4 499
3 130–4 499
3 108–3 129
< 3 108

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

Ecological tissue

Sample of 37 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 Little River : 27 espèces reliées par 75 interactions GloBI sur 4 types (connectance 10.1%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
75
Connectance
0.101
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°

10,6°C

Annual rain

1 236mm

Moisture idx (CMI)

0,10

Runoff

549mm/an

PET

1 106mm

AET

916mm

Mean slope

6,3°

Water table

290cm

Forest

100%

Crops

26%

Urban

0%

Protected

0%

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