Ontologia

HydroBASINS lev08 watershed · #7080603080

Bassin de Appomattox 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 6 administrative regions : Amelia, Chesterfield, Cumberland, Nottoway, Powhatan +1

Pfafstetter: 73190807

Sub-basin area

722km²

Upstream area

1 935km²

Discharge

26,38m³/s

Mean elev.

110m

Administrative coverage

Hydrographic chain

Drains into

Receives from 2 basins

6 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

1 613 distinct species · 58 072 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

58 072 obs · 22 cellules
Obs. / cellule
≥ 15 029
6 790–15 028
2 508–6 789
1 026–2 507
< 1 026

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

Ecological tissue

Sample of 36 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 Appomattox River : 28 espèces reliées par 77 interactions GloBI sur 4 types (connectance 11.6%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
77
Connectance
0.116
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°

13,4°C

Annual rain

1 086mm

Moisture idx (CMI)

-0,11

Runoff

417mm/an

PET

1 223mm

AET

888mm

Mean slope

1,8°

Water table

120cm

Forest

99%

Crops

15%

Urban

0%

Protected

1%

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