Ontologia

HydroBASINS lev08 watershed · #7080583180

Bassin de Rappahannock 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 4 administrative regions : Culpeper, Fredericksburg, Spotsylvania, Stafford

2% lakePfafstetter: 73190203

Sub-basin area

236,6km²

Upstream area

4 269,8km²

Discharge

63,7m³/s

Mean elev.

69m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rappahannock River658 km²

▲ Receives from 2 basins

4 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

2 221 distinct species · 176 672 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

176 672 obs · 6 cellules
Obs. / cellule
≥ 77 311
77 311–77 310
39 549–77 310
29 989–39 548
< 29 989

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

Ecological tissue

Sample of 40 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 Rappahannock River : 30 espèces reliées par 98 interactions GloBI sur 4 types (connectance 12.0%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
98
Connectance
0.119
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°

13,2°C

Annual rain

1 055mm

Moisture idx (CMI)

-0,11

Runoff

434mm/an

PET

1 184mm

AET

858mm

Mean slope

1,9°

Water table

118cm

Forest

71%

Crops

10%

Urban

44%

Protected

0%

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