Ontologia

HydroBASINS lev08 watershed · #7080398490

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 : Brown

Pfafstetter: 74295475

Sub-basin area

85,3km²

Upstream area

17 032,7km²

Discharge

40,53m³/s

Mean elev.

394m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de James River92 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

218 distinct species · 4 982 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 982 obs · 3 cellules
Obs. / cellule
≥ 4 642
4 642–4 641
4 642–4 641
253–4 641
< 253

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

Ecological tissue

Sample of 31 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 : 20 espèces reliées par 80 interactions GloBI sur 4 types (connectance 17.2%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
80
Connectance
0.172
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°

5,8°C

Annual rain

494mm

Moisture idx (CMI)

-0,48

Runoff

96mm/an

PET

948mm

AET

427mm

Mean slope

0,1°

Water table

16cm

Forest

47%

Crops

95%

Urban

0%

Protected

0%

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