Ontologia

HydroBASINS lev08 watershed · #7080618500

Bassin de James 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 : Stone

4% lakePfafstetter: 74252943

Sub-basin area

183,8km²

Upstream area

2 647,8km²

Discharge

40,38m³/s

Mean elev.

365m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de James River239 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

548 distinct species · 3 403 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 403 obs · 5 cellules
Obs. / cellule
≥ 1 911
1 911–1 910
1 056–1 910
285–1 055
< 285

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

Ecological tissue

Sample of 46 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 James River : 35 espèces reliées par 122 interactions GloBI sur 4 types (connectance 11.8%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
46
Interactions affichées
122
Connectance
0.118
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°

13,0°C

Annual rain

1 108mm

Moisture idx (CMI)

-0,10

Runoff

452mm/an

PET

1 231mm

AET

932mm

Mean slope

4,6°

Water table

215cm

Forest

80%

Crops

19%

Urban

0%

Protected

0%

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